una/modules/base/general/classes/BxBaseModGeneralModule.php

<?php defined('BX_DOL') or die('hack attempt');
/**
 * Copyright (c) UNA, Inc - https://una.io
 * MIT License - https://opensource.org/licenses/MIT
 *
 * @defgroup    BaseGeneral Base classes for modules
 * @ingroup     UnaModules
 *
 * @{
 */

define('BX_BASE_MOD_GENERAL_STATUS_ACTIVE', 'active');
define('BX_BASE_MOD_GENERAL_STATUS_HIDDEN', 'hidden');
define('BX_BASE_MOD_GENERAL_STATUS_PENDING', 'pending');

bx_import('BxDolAcl');

/**
 * Base module class.
 */
class BxBaseModGeneralModule extends BxDolModule
{
    protected $_bIsApi;
    protected $_iProfileId;
    protected $_aSearchableNamesExcept;
    protected $_aFormParams;

    protected $_aBrowsingFiltersKeys;

    function __construct(&$aModule)
    {
        parent::__construct($aModule);

        $this->_bIsApi = bx_is_api();
        $this->_iProfileId = bx_get_logged_profile_id();
        $this->_aSearchableNamesExcept = [];

        $this->_aFormParams = array(
            'display' => false, 
            'dynamic_mode' => false, 
            'ajax_mode' => false, 
            'absolute_action_url' => false,
            'visibility_autoselect' => false,
            'context_id' => 0,
            'custom' => array()
        );

        $this->_aBrowsingFiltersKeys = ['mode'];
    }

    // ====== ACTIONS METHODS

    public function isEntryActive($aContentInfo)
    {
        $CNF = &$this->_oConfig->CNF;

        $iProfileId = bx_get_logged_profile_id();
        $bModerator = $this->_isModerator();

        $mixedResult = null;
        /**
         * @hooks
         * @hookdef hook-bx_base_general-is_entry_active '{module_name}', 'is_entry_active' - hook to override whether an entry (content) active or not
         * - $unit_name - module name
         * - $action - equals `is_entry_active`
         * - $object_id - not used
         * - $sender_id - not used
         * - $extra_params - array of additional params with the following array keys:
         *      - `viewer_id` - [int] viewer profile id
         *      - `is_moderator` - [boolean] is viewer has moderator status or not
         *      - `content_info` - [array] content info array as key&value pairs
         *      - `override_result` - [boolean] by ref, boolean value which determines whether entry (content) active or not, can be overridden in hook processing
         * @hook @ref hook-bx_base_general-is_entry_active
         */
        bx_alert($this->getName(), 'is_entry_active', 0, 0, [
            'viewer_id' => $iProfileId, 
            'is_moderator' => $bModerator, 
            'content_info' => $aContentInfo, 
            'override_result' => &$mixedResult
        ]);
        if($mixedResult !== null)
            return $mixedResult;

        if($this->isEntryAuthor($aContentInfo, $iProfileId) || $bModerator)
            return true;

        if(!empty($CNF['FIELD_ALLOW_VIEW_TO']) && (int)$aContentInfo[$CNF['FIELD_ALLOW_VIEW_TO']] < 0) {
            $iContextProfileId = abs((int)$aContentInfo[$CNF['FIELD_ALLOW_VIEW_TO']]);
            $oContextProfile = BxDolProfile::getInstance($iContextProfileId);

            $aAdmins = bx_srv($oContextProfile->getModule(), 'get_admins_to_manage_content', [$iContextProfileId]);
            if(!empty($aAdmins) && in_array($iProfileId, $aAdmins))
                return true;
        }

        if(isset($CNF['FIELD_STATUS']) && $aContentInfo[$CNF['FIELD_STATUS']] != 'active')
            return false;

        if(isset($CNF['FIELD_STATUS_ADMIN']) && isset($aContentInfo[$CNF['FIELD_STATUS_ADMIN']]) && $aContentInfo[$CNF['FIELD_STATUS_ADMIN']] != 'active')
            return false;

        return true;        
    }

    public function isEntryAuthor($aContentInfo, $iProfileId = 0)
    {
        $CNF = &$this->_oConfig->CNF;

        if(!$iProfileId)
            $iProfileId = bx_get_logged_profile_id();

        $mixedResult = null;
        /**
         * @hooks
         * @hookdef hook-bx_base_general-is_entry_author '{module_name}', 'is_entry_author' - hook to check if a viewer is an author of viewed entry (content) or not
         * - $unit_name - module name
         * - $action - equals `is_entry_author`
         * - $object_id - not used
         * - $sender_id - not used
         * - $extra_params - array of additional params with the following array keys:
         *      - `viewer_id` - [int] viewer profile id
         *      - `content_info` - [array] content info array as key&value pairs
         *      - `override_result` - [boolean] by ref, boolean value which determines whether the viewer is an author of viewed entry (content) or not, can be overridden in hook processing
         * @hook @ref hook-bx_base_general-is_entry_author
         */
        bx_alert($this->getName(), 'is_entry_author', 0, 0, [
            'viewer_id' => $iProfileId, 
            'content_info' => $aContentInfo, 
            'override_result' => &$mixedResult
        ]);
        if($mixedResult !== null)
            return $mixedResult;

        return abs($aContentInfo[$CNF['FIELD_AUTHOR']]) == $iProfileId;
    }

    public function actionUpdateImage($sFiledName, $iContentId, $sValue)
    {
        $mixedResult = $this->serviceUpdateImage($sFiledName, $iContentId, $sValue);
        if($mixedResult !== false)
            echo $mixedResult;
    }

    public function actionUpdateImagePosition($iContentId, $sFiledName, $sH, $sV)
    {
        // TODO: check permissions
        $this->serviceUpdateImagePosition($iContentId, $sFiledName, $sH, $sV);
    }

    public function actionApprove()
    {
        $CNF = &$this->_oConfig->CNF;

        if(!isset($CNF['FIELD_STATUS_ADMIN']))
            return echoJson([]);

        $iContentId = (int)bx_get('content_id');
        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo) || !is_array($aContentInfo) || $aContentInfo[$CNF['FIELD_STATUS_ADMIN']] != BX_BASE_MOD_GENERAL_STATUS_PENDING)
            return echoJson([]);

        if(($mixedCheckResult = $this->checkAllowedApprove($aContentInfo)) !== CHECK_ACTION_RESULT_ALLOWED)
            return echoJson(['msg' => $mixedCheckResult]);

        $oForm = $this->_getApproveForm($iContentId, $aContentInfo);
        $oForm->initChecker();

        if(!$oForm->isSubmitted() || !$oForm->isValid()) {
            $sPopupId = $this->getName() . '_approve_' . $iContentId;
            $sPopupTitle = '_sys_manage_popup_approve_title';
            if(!empty($CNF['T']['txt_approve_popup_title'])) 
                $sPopupTitle = $CNF['T']['txt_approve_popup_title'];

            return echoJson(['popup' => BxTemplFunctions::getInstance()->popupBox($sPopupId, _t($sPopupTitle), $oForm->getCode(true))]);
        }

        if($oForm->getCleanValue('do_send')) {
            $aResult = [];
            if($this->_sendApproveMessage($iContentId, $aContentInfo, $oForm))
                $aResult = ['msg' => _t('_sys_manage_txt_sent')];
            else
                $aResult = ['msg' => _t('_sys_manage_err_cannot_perform_action')];

            return echoJson($aResult);
        }

        if($oForm->getCleanValue('do_submit')) {
            $aResult = [];
            if($this->_oDb->updateEntriesBy([$CNF['FIELD_STATUS_ADMIN'] => BX_BASE_MOD_GENERAL_STATUS_ACTIVE], [$CNF['FIELD_ID'] => $iContentId])) {
                $this->checkAllowedApprove($aContentInfo, true);

                $this->onApprove($aContentInfo);

                /*
                 * Process metas.
                 * Note. It's essential to process metas a the very end, 
                 * because all data related to an entry should be already
                 * processed and are ready to be passed to alert. 
                 */
                $this->processMetasAdd($iContentId);

                $aResult = ['msg' => _t('_sys_manage_txt_approved'), 'reload' => 1];
            }
            else
                $aResult = ['msg' => _t('_sys_manage_err_cannot_perform_action')];

            return echoJson($aResult);
        }
    }

    public function serviceSetStatus($iId, $sValue, $sStatus = '')
    {
        $CNF = &$this->_oConfig->CNF;

        if(!$sStatus && !empty($CNF['FIELD_STATUS_ADMIN']))
            $sStatus = $CNF['FIELD_STATUS_ADMIN'];

        $aStatuses = [];
        if(!empty($CNF['FIELD_STATUS_ADMIN']))
            $aStatuses[] = $CNF['FIELD_STATUS_ADMIN'];
        if(!empty($CNF['FIELD_STATUS']))
            $aStatuses[] = $CNF['FIELD_STATUS'];

        if(!in_array($sStatus, $aStatuses))
            return false;

        if((int)$this->_oDb->updateEntriesBy([$sStatus => $sValue], [$CNF['FIELD_ID'] => $iId]) == 0)
            return false;

        if($sValue == BX_BASE_MOD_GENERAL_STATUS_ACTIVE)
            $this->onPublished($iId);
    }

    public function actionRss ()
    {
        $aArgs = func_get_args();
        $this->_rss($aArgs);
    }

    /**
     * Attach link
     */
    public function actionGetAttachLinkForm()
    {
        $CNF = &$this->_oConfig->CNF;

        $iContentId = ($iContentId = bx_get($CNF['FIELD_ATTACH_LINK_CONTENT_ID'])) !== false ? (int)$iContentId : 0;

        echo $this->_oTemplate->getAttachLinkForm($iContentId);
    }
    
    public function actionSubmitAttachLinkForm()
    {
        echoJson($this->getFormAttachLink());
    }

    public function actionAddAttachLink()
    {
        $CNF = &$this->_oConfig->CNF;

        $sUrl = bx_process_input(bx_get($CNF['FIELD_ATTACH_LINK_URL']));
        if(empty($sUrl))
            return echoJson([]);
        
        $sUrl = htmlspecialchars_decode($sUrl);
        $oStreamContext = stream_context_create([
            'http' => [
                'timeout' => getParam('sys_default_socket_timeout'), 
            ]
        ]);

        $sHeader = 'Content-Type';
        $aHeaders = @get_headers($sUrl, 1, $oStreamContext);
        if(!empty($aHeaders) && is_array($aHeaders) && !empty($aHeaders[$sHeader])) {
            $mixedContentType = $aHeaders[$sHeader];
            if(!is_array($mixedContentType))
                $mixedContentType = [$mixedContentType];

            foreach($mixedContentType as $sContentType)
                if(strpos($sContentType, 'image') !== false) 
                    return echoJson([]);
        }

        echoJson($this->addAttachLink([
            $CNF['FIELD_ATTACH_LINK_CONTENT_ID'] => ($iContentId = bx_get($CNF['FIELD_ATTACH_LINK_CONTENT_ID'])) !== false ? (int)$iContentId : 0,
            $CNF['FIELD_ATTACH_LINK_URL'] => $sUrl
        ]));
    }

    public function actionDeleteAttachLink()
    {
        $CNF = &$this->_oConfig->CNF;

    	$iUserId = $this->getUserId();
        $iLinkId = bx_process_input(bx_get('id'), BX_DATA_INT);
        if(empty($iLinkId))
            return echoJson([]);

        $aLink = $this->_oDb->getLinksBy(['type' => 'id', 'id' => $iLinkId, 'profile_id' => $iUserId]);
    	if(empty($aLink) || !is_array($aLink))
            return echoJson([]);

        if(!empty($aLink['media_id']))
            BxDolStorage::getObjectInstance($CNF['OBJECT_STORAGE_PHOTOS'])->deleteFile($aLink['media_id']);

        $aResult = [];
        if($this->_oDb->deleteLink($iLinkId))
            $aResult = ['code' => 0, 'url' => $aLink['url']];
        else
            $aResult = ['code' => 1, 'message' => _t(!empty($CNF['txt_link_form_err_delete']) ? $CNF['txt_link_form_err_delete'] : $this->getName() . '_form_post_input_link_err_delete')];

        echoJson($aResult);
    }

    /**
     * Attach poll
     */
    public function actionEmbedPoll($iPollId = 0)
    {
        if(empty($iPollId) && bx_get('poll_id') !== false)
            $iPollId = (int)bx_get('poll_id');

        $aParams = bx_get_with_prefix('param');
        array_walk($aParams, function(&$sValue) {
            $sValue = bx_process_input($sValue);
        });

        $this->_oTemplate->embedPollItem($iPollId, $aParams);
    }

    public function actionEmbedPolls($iId = 0)
    {
        list($iContentId, $aContentInfo) = $this->_getContent($iId);
        if($iContentId === false)
            return;

        $aParams = bx_get_with_prefix('param');
        array_walk($aParams, function(&$sValue) {
            $sValue = bx_process_input($sValue);
        });

        $this->_oTemplate->embedPollItems($aContentInfo, $aParams);
    }

    public function actionGetPoll()
    {
        $iPollId = (int)bx_get('poll_id');
        $sView = bx_process_input(bx_get('view'));

        $sMethod = 'serviceGetBlockPoll' . bx_gen_method_name($sView);
        if(!method_exists($this, $sMethod))
            return echoJson(array());

        $aBlock = $this->$sMethod($iPollId, true);
        if(empty($aBlock) || !is_array($aBlock))
            return echoJson(array());

        return echoJson(array(
            'content' => $aBlock['content']
        ));
    }
    public function actionDeletePoll()
    {
        $CNF = &$this->_oConfig->CNF;

        $iId = bx_process_input(bx_get('id'), BX_DATA_INT);
        if(empty($iId))
            return echoJson([]);

        $aResult = [];
        if($this->serviceDeletePoll($iId))
            $aResult = ['code' => 0];
        else
            $aResult = ['code' => 1, 'message' => _t($CNF['txt_err_cannot_perform_action'])];

        echoJson($aResult);
    }

    public function actionGetPollForm()
    {
        echo $this->_oTemplate->getPollForm((int)bx_get('parent_cid'));
    }

    public function actionSubmitPollForm()
    {
        echoJson($this->getPollForm((int)bx_get('parent_cid')));
    }

    public function serviceGetPollForm()
    {
        if(!$this->_bIsApi)
            return false;

        $aResult = $this->getPollForm();

        if(isset($aResult['code'])) {
            if((int)$aResult['code'] == 0) {
                return [
                    'id' => $aResult['id'],
                    'item' => $aResult['item']
                ];
            }
            else
                return isset($aResult['message']) ? [bx_api_get_msg($aResult['message'])] : [];
        }
        else if(isset($aResult['form'])) {
            $sModule = $this->getName();

            return [bx_api_get_block('form', $aResult['form'], [
                'ext' => [
                    'name' => $sModule, 
                    'request' => ['url' => '/api.php?r=' . $sModule . '/submit_poll_form', 'immutable' => true]
                ]
            ])];
        }
    }

    public function serviceSubmitPollForm()
    {
        if(!$this->_bIsApi)
            return false;

        return $this->serviceGetPollForm();
    }

    public function serviceDeletePoll($iId)
    {
        return $this->_oDb->deletePolls([$this->_oConfig->CNF['FIELD_POLL_ID'] => $iId]);
    }

    public function getPollForm($iParentCid = 0)
    {
        $CNF = &$this->_oConfig->CNF;

        if(empty($CNF['OBJECT_FORM_POLL']))
            return ['code' => 1, 'message' => '_sys_txt_error_occured'];

        $iProfileId = bx_get_logged_profile_id();

        $oForm = BxDolForm::getObjectInstance($CNF['OBJECT_FORM_POLL'], $CNF['OBJECT_FORM_POLL_DISPLAY_ADD'], $this->_oTemplate);
        $oForm->setParentContentId($iParentCid);

        $oForm->initChecker();
        if($oForm->isSubmittedAndValid()) {
            $iId = $oForm->insert();
            if($iId)
                return ['code' => 0, 'id' => $iId, 'item' => $this->_oTemplate->getPollItem($iId, $iProfileId, [
                    'parent_cid' => $iParentCid,
                    'manage' => true
                ])];
            else
                return ['code' => 2, 'message' => '_sys_txt_error_entry_creation'];
        }

        return [
            'form' => $oForm->{'getCode' . ($this->_bIsApi ? 'API' : '')}(), 
            'form_id' => $oForm->id
        ];
    }

    public function actionGetCreatePostForm()
    {
        $sName = $this->_oConfig->getName();

    	$aParams = bx_process_input(array_intersect_key($_GET, $this->_aFormParams));
    	$aParams = array_merge($this->_aFormParams, $aParams);
        $aParams['context_id'] = (bool)$aParams['context_id'] ? (int)$aParams['context_id'] : false;

    	$mixedResponse = $this->serviceGetCreatePostForm($aParams);
    	if(empty($mixedResponse))
            return echoJson(array());
        else if(is_array($mixedResponse)) {
            $mixedResponse['module'] = $sName;
            return echoJson($mixedResponse);
        }

        return echoJson(array(
            'module' => $sName,
            'content' => $mixedResponse
    	));
    }

    public function actionGetNotes()
    {
        $CNF = &$this->_oConfig->CNF;
        if(empty($CNF['OBJECT_NOTES']))
            return echoJson([]);

        $iContentId = (int)bx_get('content_id');

        $oCmtsNotes = BxDolCmts::getObjectInstance($CNF['OBJECT_NOTES'], $iContentId, true, $this->_oTemplate);
        $aCmtsNotes = $oCmtsNotes->getCommentsBlock([], ['in_designbox' => false]);
        if(empty($aCmtsNotes) || !is_array($aCmtsNotes))
            return echoJson([]);

        $sPostfix = $iContentId < 0 ? '_rc' : '';

        $sPopupId = $this->getName() . '_notes_' . $iContentId;
        $sPopupTitle = !empty($CNF['T']['txt_cmts_notes_popup_view_title' . $sPostfix]) ? $CNF['T']['txt_cmts_notes_popup_view_title' . $sPostfix] : '_cmt_nts_popup_view_title' . $sPostfix;
        echoJson(['popup' => BxTemplFunctions::getInstance()->popupBox($sPopupId, _t($sPopupTitle), $aCmtsNotes['content'])]);
    }
    
    public function actionNested()
    {
        $sAction = bx_get('a');
        $sMethodName = 'subaction' . ucfirst($sAction);
        if (!method_exists($this, $sMethodName)) {
            return;
        }
        $this->$sMethodName();
    }
    
    public function actionEmbed($iContentId, $sUnitTemplate = '', $sAddCode = '')
    {
        $oTemplate = BxDolTemplate::getInstance();
        
        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo))
            $oTemplate->getEmbed(false);

        if(empty($sUnitTemplate))
            $sUnitTemplate = 'unit_gallery.html';

        $CNF = &$this->_oConfig->CNF;
        
        if(!empty($CNF['OBJECT_VIEWS'])) {
            $oView = BxDolView::getObjectInstance($CNF['OBJECT_VIEWS'], $iContentId);
            if($oView && $oView->isEnabled())
                $oView->doView();
        }

        $oTemplate->getEmbed($this->_oTemplate->unit($aContentInfo, true, $sUnitTemplate, ['embed' => true]) . $sAddCode);
    }
   
    public function subactionDelete()
    {
        header('Content-type: text/html; charset=utf-8');

        $iNestedId = (int)bx_get('id');
		$sNestedForm = bx_get('s');
        
        $oForm = BxDolForm::getObjectInstance($sNestedForm, $sNestedForm);
        if (!$oForm){
            echo _t('_sys_request_page_not_found_cpt');
            return;
        }

        $aNested = $this->_oDb->getNestedBy(array('type' => 'id', 'id' => $iNestedId, 'key_name' => $oForm->aParams['db']['key']), $oForm->aParams['db']['table']);
        if (empty($aNested)){
            echo _t('_sys_request_page_not_found_cpt');
            return;
        }
        
        $aContentInfo = $this->_oDb->getContentInfoById ($aNested['content_id']); 
        if (!$aContentInfo){
            echo _t('_sys_request_page_not_found_cpt');
            return;
        }

        elseif (CHECK_ACTION_RESULT_ALLOWED !== ($sMsg = $this->checkAllowedEdit ($aContentInfo))) {
            echo $sMsg;
        } 
        elseif (!$this->_oDb->deleteNestedById($iNestedId, $oForm->aParams['db']['key'], $oForm->aParams['db']['table'])) {
            echo _t('_sys_txt_error_occured');
        } 
        else {
            echo 'ok';
        }
    }
    
    /**
     * Get possible recipients for start conversation form
     */
    public function actionAjaxGetProfiles ()
    {
        $sTerm = bx_get('term');

        $a = BxDolService::call('system', 'profiles_search', array($sTerm), 'TemplServiceProfiles');

        header('Content-Type:text/javascript; charset=utf-8');
        echo(json_encode($a));
    }
    
    public function serviceGetProfiles ($sParams)
    {
        $aOptions = json_decode($sParams, true);
        if (!$sParams || !isset($aOptions['term']))
            return [];

        return BxDolService::call('system', 'profiles_search', array($aOptions['term']), 'TemplServiceProfiles');
    }

    public function actionGetBrowsingFilters()
    {
        $aParams = $this->_prepareBrowsingFiltersParamsGet();

        $sContent = $this->_oTemplate->getBrowsingFilters($aParams);
        if(empty($sContent))
            return echoJson([]);

        echoJson([
            'code' => 0,
            'popup' => [
                'html' => $sContent,
                'options' => [
                    'closeOnOuterClick' => false,
                    'removeOnClose' => false,
                ]
            ],
        ]);
    }

    public function actionApplyBrowsingFilters()
    {
        $aParams = $this->_prepareBrowsingFiltersParamsGet();

        $aBrowseParams = ['mode' => $aParams['mode'], 'empty_message' => true];
        unset($aParams['mode']);
        $aBrowseParams['params'] = $aParams;

        $mixedResult = $this->serviceBrowse($aBrowseParams);
        if(empty($mixedResult))
            return echoJson([]);

        if(is_array($mixedResult) && isset($mixedResult['content']))
            $mixedResult = $mixedResult['content'];

        return echoJson([
            'code' => 0, 
            'content' => $mixedResult, 
            'eval' => $this->_oConfig->getJsObject('main') . '.onApplyBrowsingFilter(oData)'
        ]);
    }

    protected function _prepareBrowsingFiltersParamsGet($mParams = false)
    {
        $aParams = [];
        $bParams = !empty($mParams) && is_array($mParams);

        foreach($this->_aBrowsingFiltersKeys as $sKey)
            if($bParams) {
                if(isset($mParams[$sKey]))
                    $aParams[$sKey] = $mParams[$sKey];
            }
            else {
                if(($sValue = bx_get($sKey)) !== false)
                    $aParams[$sKey] = $sValue;
            }

        return $aParams;
    }

    // ====== SERVICE METHODS

    /**
     * Checkes whether a content is active by status (status_admin).
     * 
     * @param type $iContentId
     * @return boolean
     */
    public function serviceIsActive($iContentId)
    {
        $CNF = &$this->_oConfig->CNF;

        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo))
            return false;

        if(($sKey = 'FIELD_STATUS') && isset($CNF[$sKey]) && $aContentInfo[$CNF[$sKey]] != 'active')
            return false;

        if(($sKey = 'FIELD_STATUS_ADMIN') && isset($CNF[$sKey]) && isset($aContentInfo[$CNF[$sKey]]) && $aContentInfo[$CNF[$sKey]] != 'active')
            return false;

        return true;
    }

    public function serviceIsAllowedAddContentToContext($iContextPid)
    {
        $oContext = false;
        if(!$iContextPid || !($oContext = BxDolProfile::getInstance((int)$iContextPid)))
            return false;

        if($iContextPid == bx_get_logged_profile_id())
            return true;

        return bx_srv($oContext->getModule(), 'check_allowed_post_in_profile', [$oContext->getContentId(), $this->getName()]) === CHECK_ACTION_RESULT_ALLOWED;
    }

    public function serviceIsBadgesAvaliable()
    {
        if(!isAdmin() && !$this->_isAdministrator())
            return false;

        $aBadges = BxDolBadges::getInstance()->getData([
            'type' => 'by_module&object', 
            'object_id' => 0, 
            'module' => $this->getName()
        ]);

        return count($aBadges) > 0 ? true : false;
    }

    public function serviceGetSafeServices()
    {
        return array(
            // other
            'ModuleIcon' => '',
            'GetLink' => '',
            // browse
            'GetSearchResultUnit' => '',
            'Browse' => '',
            'BrowseFeatured' => '',
            'BrowseFavorite' => '',
            // forms
            'GetCreatePostForm' => '',
            'EntityCreate' => '',
            'EntityEdit' => '',
            'EntityDelete' => '',
            'UpdateImage' => '',
            //manage
            'GetInfo' => '',
            'EditEntity' => '',
            // polls
            'GetPollForm' => '',
            'SubmitPollForm' => '',
            'DeletePoll' => '',
            'GetBlockPollAnswers' => '',
            'GetBlockPollResults' => '',
            // page blocks
            'EntityTextBlock' => '',
            'EntityInfo' => '',
            'EntityInfoFull' => '',
            'EntityInfoExtended' => '',
            'EntityLocation' => '',
            'EntityComments' => '',
            'EntityAttachments' => '',
            'CategoriesMultiList' => '',
            // menu
            'EntityAllActions' => '',
            'EntityActions' => '',
            'EntitySocialSharing' => '',
            'MyEntriesActions' => '',
            
            'GetProfiles' => '',
        );
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-other Other
     * @subsubsection bx_base_general-module_icon module_icon
     * 
     * @code bx_srv('bx_posts', 'module_icon', [...]); @endcode
     * 
     * Get module icon as CSS class name with FontAwesome icon name class and color class
     * 
     * @see BxBaseModGeneralModule::serviceModuleIcon
     */
    /** 
     * @ref bx_base_general-module_icon "module_icon"
     */
    public function serviceModuleIcon ()
    {
        return isset($this->_oConfig->CNF['ICON']) ? $this->_oConfig->CNF['ICON'] : '';
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-other Other
     * @subsubsection bx_base_general-module_sample module_sample
     * 
     * @code bx_srv('bx_posts', 'module_sample', [...]); @endcode
     * 
     * Get module sample
     * 
     * @see BxBaseModGeneralModule::serviceModuleSample
     */
    /** 
     * @ref bx_base_general-module_sample "module_sample"
     */
    public function serviceModuleSample ()
    {
        return $this->_oConfig->CNF['T']['txt_sample_single'] ?? '';
    }

    public function serviceGetModerators($iContentId)
    {
        return $this->getModerators($iContentId);
    }

    public function serviceGetAuthor ($iContentId)
    {
        $mixedResult = $this->_getFieldValue('FIELD_AUTHOR', $iContentId);
        return $mixedResult !== false ? (int)$mixedResult : 0; 
    }

    public function serviceGetPrivacyView ($iContentId)
    {
        return $this->_getFieldValue('FIELD_ALLOW_VIEW_TO', $iContentId);
    }

    public function serviceGetDateAdded ($iContentId)
    {
        $mixedResult = $this->_getFieldValue('FIELD_ADDED', $iContentId);
        return $mixedResult !== false ? (int)$mixedResult : 0; 
    }

    public function serviceGetDateChanged ($iContentId)
    {
        $mixedResult = $this->_getFieldValue('FIELD_CHANGED', $iContentId);
        return $mixedResult !== false ? (int)$mixedResult : 0;
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-other Other
     * @subsubsection bx_base_general-get_link_add get_link_add
     * 
     * @code bx_srv('bx_posts', 'get_link_add', [...]); @endcode
     * 
     * Get add entry URL.
     * 
     * @see BxBaseModGeneralModule::serviceGetLinkAdd
     */
    /** 
     * @ref bx_base_general-get_link_add "get_link_add"
     */
    public function serviceGetLinkAdd ()
    {
        $sUri = $this->_oConfig->getEntryUri('add');
        if(!$sUri)
            return '';         

        return bx_absolute_url(BxDolPermalinks::getInstance()->permalink('page.php?i=' . $sUri));
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-other Other
     * @subsubsection bx_base_general-get_link_edit get_link_edit
     * 
     * @code bx_srv('bx_posts', 'get_link_edit', [...]); @endcode
     * 
     * Get edit entry URL for the specified content.
     * @param $iContentId content id
     * 
     * @see BxBaseModGeneralModule::serviceGetLinkEdit
     */
    /** 
     * @ref bx_base_general-get_link_edit "get_link_edit"
     */
    public function serviceGetLinkEdit ($iContentId)
    {
        $CNF = &$this->_oConfig->CNF;

        $sUri = $this->_oConfig->getEntryUri('edit');        
        if(!$sUri)
            return '';

        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo))
            return '';

        return bx_absolute_url(BxDolPermalinks::getInstance()->permalink('page.php?i=' . $sUri . '&id=' . $aContentInfo[$CNF['FIELD_ID']]));
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-other Other
     * @subsubsection bx_base_general-get_link get_link
     * 
     * @code bx_srv('bx_posts', 'get_link', [...]); @endcode
     * 
     * Get URL for the specified content.
     * @param $iContentId content id
     * 
     * @see BxBaseModGeneralModule::serviceGetLink
     */
    /** 
     * @ref bx_base_general-get_link "get_link"
     */
    public function serviceGetLink ($iContentId)
    {
        $CNF = &$this->_oConfig->CNF;

        $sUri = $this->_oConfig->getEntryUri('view');        
        if(!$sUri)
            return '';

        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo))
            return '';

        return bx_absolute_url(BxDolPermalinks::getInstance()->permalink('page.php?i=' . $sUri . '&id=' . $aContentInfo[$CNF['FIELD_ID']]));
    }

    public function serviceGetTitle ($iContentId)
    {
        $mixedResult = $this->_getFieldValue('FIELD_TITLE', $iContentId);
        return $mixedResult !== false ? $mixedResult : '';
    }

    public function serviceGetText ($iContentId)
    {
        $mixedResult = $this->_getFieldValue('FIELD_TEXT', $iContentId);
        if (false === $mixedResult)
            return '';

        $CNF = &$this->_oConfig->CNF;
        if (!empty($CNF['OBJECT_METATAGS']) && is_string($mixedResult)) {
            $oMetatags = BxDolMetatags::getObjectInstance($CNF['OBJECT_METATAGS']);
            $mixedResult = $oMetatags->metaParse($iContentId, $mixedResult);
        }

        return $mixedResult;
    }
    
    public function serviceGetLocation ($iContentId)
    {
        $CNF = &$this->_oConfig->CNF;

        if(empty($CNF['OBJECT_METATAGS']))
            return [];

        $mixedResult = $this->_getFieldValue('FIELD_LOCATION', $iContentId);
        if(false === $mixedResult)
            return [];

        $oMeta = false;
        if(!($oMeta = BxDolMetatags::getObjectInstance($CNF['OBJECT_METATAGS'])) || !$oMeta->locationsIsEnabled())
            return false;

        $aLocation = $oMeta->locationGet($iContentId);
        if(empty($aLocation) || !is_array($aLocation))
            return false;

        return array_values(array_slice($aLocation, 1));
    }

    public function serviceGetEmbed ($iContentId)
    {
        $sTitle = $this->_getFieldValue('FIELD_TITLE', $iContentId);
        return $this->_oTemplate->parseHtmlByName('embed.html', [
            'title' => $sTitle,
            'url' => BX_DOL_URL_ROOT . $this->_oConfig->getBaseUri() . 'embed/' . $iContentId . '/'
        ]);
    }

    public function serviceGetInfo ($iContentId, $bSearchableFieldsOnly = true)
    {
        $CNF = &$this->_oConfig->CNF;

        $aContentInfo = $this->_getFields($iContentId);
        if(empty($aContentInfo))
            return [];

        if($bSearchableFieldsOnly === false)
            return $aContentInfo;
        else if(is_string($bSearchableFieldsOnly) && isset($aContentInfo[$bSearchableFieldsOnly]))
            return $aContentInfo[$bSearchableFieldsOnly];

        if(($sSf = $CNF['PARAM_SEARCHABLE_FIELDS'] ?? false) && ($aFields = explode(',', getParam($sSf))))
            return array_intersect_key($aContentInfo, array_flip($aFields));

        return [];
    }

    public function serviceGetInfoApi ($iContentId, $bExtendedUnits = false)
    {
        $aData = $this->serviceGetInfo($iContentId, false);
        if($aData)
            $aData = $this->getDataAPI($aData, ['extended' => $bExtendedUnits]);

        return $aData;
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-browsing Browsing
     * @subsubsection bx_base_general-get_search_result_unit get_search_result_unit
     * 
     * @code bx_srv('bx_posts', 'get_search_result_unit', [3,"unit_gallery.html"]); @endcode
     * 
     * Get browsing unit for the specified content
     * @param $iContentId content id
     * @param $sUnitTemplate unit template, such as: unit_full.html, unit_gallery.html, unit_live_search.html
     * 
     * @see BxBaseModGeneralModule::serviceGetSearchResultUnit
     */
    /** 
     * @ref bx_base_general-get_search_result_unit "get_search_result_unit"
     */
    public function serviceGetSearchResultUnit ($iContentId, $sUnitTemplate = '')
    {
        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if($this->_bIsApi)
            return $this->getDataAPI($aContentInfo);

        if(empty($aContentInfo))
            return '';

        if(empty($sUnitTemplate))
            $sUnitTemplate = 'unit.html';

        return $this->_oTemplate->unit($aContentInfo, true, $sUnitTemplate);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-browsing Browsing
     * @subsubsection bx_base_general-get_view get_view
     * 
     * @code bx_srv('bx_posts', 'get_view', [3]); @endcode
     * 
     * Get view for the specified content
     * @param $iContentId content id
     * 
     * @see BxBaseModGeneralModule::serviceGetView
     */
    /** 
     * @ref bx_base_general-get_view "get_view"
     */
    public function serviceGetView ($iContentId)
    {
        return $this->serviceEntityTextBlock($iContentId);
    }

    public function serviceGetAll ($aParams = array())
    {
        if(empty($aParams) || !is_array($aParams))
            $aParams = array('type' => 'all');

        return $this->_oDb->getEntriesBy($aParams);
    }

    public function serviceGetAllByAuthor ($iProfileId)
    {
        return $this->_oDb->getEntriesByAuthor((int)$iProfileId);
    }

    public function serviceGetSortableFieldsExtended($aInputsAdd = array())
    {
        $CNF = &$this->_oConfig->CNF;
        if(empty($CNF['OBJECT_FORM_ENTRY']))
            return array();
        
        $aResult = array();
        
        $aSortableFields = [];
        
        $aDisplays = [];
        if(!empty($CNF['OBJECT_FORM_ENTRY_DISPLAY_ADD'])) {
            $aDisplays[] = $CNF['OBJECT_FORM_ENTRY_DISPLAY_ADD'];
        }
        if(!empty($CNF['OBJECT_FORM_ENTRY_DISPLAY_EDIT'])) {
            $aDisplays[] = $CNF['OBJECT_FORM_ENTRY_DISPLAY_EDIT'];
        }
        
        $aInputsAll = BxDolFormQuery::getFormInputs($CNF['OBJECT_FORM_ENTRY']);    
        foreach($aInputsAll as $aInput){
            $aInputsAll[$aInput['name']] = $aInput;
        }
        
        $aInputs = BxDolFormQuery::getFormInputs($CNF['OBJECT_FORM_ENTRY'],  $aDisplays);
        foreach($aInputs as $aInput){
            $aInputs[$aInput['name']] = $aInput;
            if ($aInput['type'] == 'text'){
                $aSortableFields[] = $aInput['name'];
            }
        }
        
        if(!empty($CNF['FIELD_ADDED']) && isset($aInputsAll[$CNF['FIELD_ADDED']])){
           $aSortableFields[] = $CNF['FIELD_ADDED'];
        }
        
        if(!empty($CNF['FIELD_CHANGED']) && isset($aInputsAll[$CNF['FIELD_CHANGED']])){
           $aSortableFields[] = $CNF['FIELD_CHANGED'];
        }     
        
        foreach($aSortableFields as $sSortableField){
             $aResult[$sSortableField . '_asc'] = [
                'name' => $sSortableField,
                'caption' => $aInputsAll[$sSortableField]['caption'],
                'direction' => 'asc'
            ];
            
            $aResult[$sSortableField . '_desc']  = [
                'name' => $sSortableField,
                'caption' => $aInputsAll[$sSortableField]['caption'],
                'direction' => 'desc'
            ];
        }

        /**
         * @hooks
         * @hookdef hook-bx_base_general-get_sortable_fields '{module_name}', 'get_sortable_fields' - hook to override a list of sortable fields
         * - $unit_name - module name
         * - $action - equals `get_sortable_fields`
         * - $object_id - not used
         * - $sender_id - not used
         * - $extra_params - array of additional params with the following array keys:
         *      - `override_result` - [array] a list of searchable fields, can be overridden in hook processing
         * @hook @ref hook-bx_base_general-get_sortable_fields
         */
        bx_alert($this->getName(), 'get_sortable_fields', 0, 0, [
            'extended' => true, 
            'override_result' => &$aResult
        ]);

        return $aResult;
    }
    
    public function serviceGetSearchableFieldsExtended($aInputsAdd = array())
    {
        $CNF = &$this->_oConfig->CNF;
        if(empty($CNF['OBJECT_FORM_ENTRY']))
            return array();

        $aResult = array();
        if(!empty($CNF['FIELD_AUTHOR']) && !in_array($CNF['FIELD_AUTHOR'], $this->_aSearchableNamesExcept))
            $aResult[$CNF['FIELD_AUTHOR']] = array(
                'type' => 'text_auto', 
                'caption' => $CNF['T']['form_field_author'],
                'info' => '',
            	'value' => '',
                'values' => '',
                'pass' => ''
            );

        $aInputs = array();
        if(!empty($CNF['OBJECT_FORM_ENTRY_DISPLAY_ADD'])) {
            $oForm = BxDolForm::getObjectInstance($CNF['OBJECT_FORM_ENTRY'], $CNF['OBJECT_FORM_ENTRY_DISPLAY_ADD'], $this->_oTemplate);

            $aInputs = array_merge($aInputs, $oForm->aInputs);
        }
        if(!empty($CNF['OBJECT_FORM_ENTRY_DISPLAY_EDIT'])) {
            $oForm = BxDolForm::getObjectInstance($CNF['OBJECT_FORM_ENTRY'], $CNF['OBJECT_FORM_ENTRY_DISPLAY_EDIT'], $this->_oTemplate);

            $aInputs = array_merge($aInputs, $oForm->aInputs);
        }

        if(!empty($aInputsAdd) && is_array($aInputsAdd))
            $aInputs = array_merge($aInputs, $aInputsAdd);

        if(!empty($CNF['FIELD_LABELS']) && array_key_exists($CNF['FIELD_LABELS'], $aInputs) && !in_array($CNF['FIELD_LABELS'], $this->_aSearchableNamesExcept))
            $aResult[$CNF['FIELD_LABELS']] = [
                'type' => 'checkbox_set', 
                'caption' => $CNF['T']['form_field_labels'] ?? '_sys_form_input_labels',
                'info' => '',
            	'value' => '',
                'values' => '',
                'pass' => '',
                'search_operator' => 'like'
            ];

        if(($sField = $CNF['FIELD_ALLOW_VIEW_TO'] ?? '') != '' && array_key_exists($sField, $aInputs) && !in_array($sField, $this->_aSearchableNamesExcept)) 
            $aInputs[$sField] = array_merge($aInputs[$sField], [
                'search_type' => 'select',
                'search_operator' => '='
            ]);

        foreach($aInputs as $aInput){
            if(in_array($aInput['type'], BxDolSearchExtended::$SEARCHABLE_TYPES) && !in_array($aInput['name'], $this->_aSearchableNamesExcept)) {
                $aField = array(
                    'type' => $aInput['type'], 
                    'caption_system' => $aInput['caption_system_src'],
                    'caption' => $aInput['caption_src'],
                    'info' => $aInput['info_src'],
                    'value' => !empty($aInput['value']) ? $aInput['value'] : '',
                    'values' => !empty($aInput['values_src']) ? $aInput['values_src'] : '',
                    'pass' => !empty($aInput['db']['pass']) ? $aInput['db']['pass'] : '',
                );

                if(isset($aInput['search_type']))
                    $aField['search_type'] = $aInput['search_type'];

                if(isset($aInput['search_operator']))
                    $aField['search_operator'] = $aInput['search_operator'];

                $aResult[$aInput['name']] = $aField;
            }
        }

        /**
         * @hooks
         * @hookdef hook-bx_base_general-get_searchable_fields '{module_name}', 'get_searchable_fields' - hook to override a list of searchable fields
         * - $unit_name - module name
         * - $action - equals `get_searchable_fields`
         * - $object_id - not used
         * - $sender_id - not used
         * - $extra_params - array of additional params with the following array keys:
         *      - `override_result` - [array] a list of searchable fields, can be overridden in hook processing
         * @hook @ref hook-bx_base_general-get_searchable_fields
         */
        bx_alert($this->getName(), 'get_searchable_fields', 0, 0, [
            'extended' => true, 
            'override_result' => &$aResult
        ]);

        return $aResult;
    }

    public function serviceGetSearchResultExtended($aParams, $iStart = 0, $iPerPage = 0, $bFilterMode = false)
    {
        if((empty($aParams) || !is_array($aParams)) && !$bFilterMode)
            return array();

        return $this->_oDb->getEntriesBy(array('type' => 'search_ids', 'search_params' => $aParams, 'start' => $iStart, 'per_page' => $iPerPage));
    }

    public function serviceGetSearchableFields ($aInputsAdd = array())
    {
        $CNF = $this->_oConfig->CNF;

        if(!isset($CNF['PARAM_SEARCHABLE_FIELDS']) || !isset($CNF['OBJECT_FORM_ENTRY']) || !isset($CNF['OBJECT_FORM_ENTRY_DISPLAY_ADD']))
            return array();

        $oForm = BxDolForm::getObjectInstance($CNF['OBJECT_FORM_ENTRY'], $CNF['OBJECT_FORM_ENTRY_DISPLAY_ADD'], $this->_oTemplate);
        if(!$oForm)
            return array();

        $aInputs = $oForm->aInputs;
        if(!empty($aInputsAdd) && is_array($aInputsAdd))
            $aInputs = array_merge($aInputs, $aInputsAdd);

        $aTextTypes = array('text', 'textarea');
        $aTextFields = array();
        foreach($aInputs as $r)
            if(in_array($r['type'], $aTextTypes))
                $aTextFields[$r['name']] = $r['caption'];

        return $aTextFields;
    }

    public function serviceUpdateImage($sFiledName, $iContentId, $sValue)
    {
        $CNF = &$this->_oConfig->CNF;

        $aData = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aData) || !is_array($aData))
            return false;

        if($this->checkAllowedEdit($aData) !== CHECK_ACTION_RESULT_ALLOWED)
            return false;

        //TODO add transcoder settings
        $oImgStorage = BxDolStorage::getObjectInstance($CNF['OBJECT_STORAGE']);
        if(!$oImgStorage)
            return false;

        $this->_oDb->updateEntriesBy([$sFiledName => $sValue], [$CNF['FIELD_ID'] => $iContentId]);

        $this->serviceUpdateImagePosition($iContentId, $sFiledName, '', '');

        $this->onUpdateImage($iContentId, $sFiledName, $sValue);

        return $oImgStorage->getFileUrlById($sValue);
    }

    public function serviceUpdateImagePosition($iContentId, $sFiledName, $sH, $sV)
    {
        $CNF = &$this->_oConfig->CNF;

        $sFieldNamePos = 'FIELD_' . strtoupper($sFiledName) . '_POSITION';
        if(!isset($CNF[$sFieldNamePos]))
            return false;

        $sValue = '';
        if($sH != '' || $sV != '')
            $sValue = json_encode(['x' => $sH, 'y' => $sV]);

        $this->_oDb->updateEntriesBy([$CNF[$sFieldNamePos] => $sValue], [$CNF['FIELD_ID'] => $iContentId]);

        if($this instanceof BxBaseModProfileModule) {
            $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
            bx_content_cache_del_by_prefix('sprofile_unit_vars:' . $aContentInfo['profile_id'] . ':');
        }

        return true;
    }

    public function serviceManageTools($sType = 'common')
    {
        if(!isLogged())
            return '';

        $oGrid = BxDolGrid::getObjectInstance($this->_oConfig->getGridObject($sType));
        if(!$oGrid)
            return '';

        $CNF = &$this->_oConfig->CNF;

        $mixedMenu = '';
        if(BxDolAcl::getInstance()->isMemberLevelInSet(192)) {
            $oPermalink = BxDolPermalinks::getInstance();

            $aMenuItems = array();
            if(!empty($CNF['OBJECT_GRID_COMMON']) && !empty($CNF['T']['menu_item_manage_my']))
                $aMenuItems[] = array('id' => 'manage-common', 'name' => 'manage-common', 'class' => '', 'link' => $oPermalink->permalink($CNF['URL_MANAGE_COMMON']), 'target' => '_self', 'title' => _t($CNF['T']['menu_item_manage_my']), 'active' => 1);
            if(!empty($CNF['OBJECT_GRID_ADMINISTRATION']) && !empty($CNF['T']['menu_item_manage_all']))
                $aMenuItems[] = array('id' => 'manage-administration', 'name' => 'manage-administration', 'class' => '', 'link' => $oPermalink->permalink($CNF['URL_MANAGE_ADMINISTRATION']), 'target' => '_self', 'title' => _t($CNF['T']['menu_item_manage_all']), 'active' => 1);

            if(count($aMenuItems) > 1) {
                $mixedMenu = new BxTemplMenu(array(
                    'template' => 'menu_block_submenu_ver.html', 
                    'menu_items' => $aMenuItems
                ), $this->_oTemplate);
                $mixedMenu->setSelected($this->_aModule['name'], 'manage-' . $sType);
            }
        }

        if(!empty($CNF['OBJECT_MENU_SUBMENU']) && isset($CNF['URI_MANAGE_COMMON']) && ($oSubmenu = BxDolMenu::getObjectInstance($CNF['OBJECT_MENU_SUBMENU'])) !== false)
            $oSubmenu->setSelected($this->_aModule['name'], $CNF['URI_MANAGE_COMMON']);

        if($this->_bIsApi)
            return [
                'content' => [bx_api_get_block('grid', $oGrid->getCodeAPI())],
                'menu' => $mixedMenu ? $mixedMenu->getCodeAPI() : ''
            ];

        $this->_oTemplate->addCss(array('manage_tools.css'));
        $this->_oTemplate->addJs(array('manage_tools.js'));
        $this->_oTemplate->addJsTranslation(array('_sys_grid_search'));
        return array(
            'content' => $this->_oTemplate->getJsCode('manage_tools', array('sObjNameGrid' => $this->_oConfig->getGridObject($sType))) . $oGrid->getCode(),
            'menu' => $mixedMenu
        );
    }

    public function serviceGetMenuAddonManageTools()
    {
        return 0;
    }

    public function serviceGetMenuAddonManageToolsProfileStats($iProfileId = 0)
    {
        return 0;
    }

    public function serviceGetObjectBrowse($sMode, $aParams = false, $sClassSearchResult = 'SearchResult')
    {
        if(empty($aParams) || !is_array($aParams))
            $aParams = [];

        return $this->getObjectBrowse($sMode, array_merge(['mode' => $sMode], $aParams), $sClassSearchResult);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-browsing Browsing
     * @subsubsection bx_base_general-browse browse
     * 
     * @code bx_srv('bx_posts', 'browse', [...]); @endcode
     * @code {{~bx_posts:browse[{"mode":"author", "params":{"author":"10"}}]~}} @endcode
     * 
     * Universal browse method.
     * @param $aParams custom browse params, possible params are the following:
     *  - mode - browse mode, such as 'recent', 'featured', etc
     *  - params - custom params to browse method, for example 'unit_view' can be passed here
     *  - design_box - design box style, @see BxBaseFunctions::DesignBoxContent 
     *  - empty_message - display or not "empty" message when there is no content
     *  - ajax_paginate - use AJAX paginate or not
     * 
     * @see BxBaseModGeneralModule::serviceBrowse
     */
    /** 
     * @ref bx_base_general-browse "browse"
     */
    public function serviceBrowse ($aParams = array())
    {
        if($this->_bIsApi && is_string($aParams)){
            $aParams = json_decode($aParams, true);
            if (isset($aParams['params'])) {
                if(($sK = 'type') && isset($aParams['params'][$sK]))
                    $aParams['mode'] = $aParams['params'][$sK];

                if(($sK = 'class_search_result') && isset($aParams['params'][$sK]))
                    $aParams[$sK] = $aParams['params'][$sK];

                if(isset($aParams['params']['filters'])) {
                    foreach($aParams['params']['filters'] as $sKey => $sValue)
                        $aParams['params'][$sKey] = $sValue;

                    $aParams['params']['filters'] = [
                        'values' => $aParams['params']['filters']
                    ];
                }
            }
        }

        if (isset($aParams['params']['condition']))
            unset($aParams['params']['condition']);

        return $this->serviceBrowseWithCondition ($aParams);
    }

    public function serviceBrowseWithCondition ($aParams = array())
    {
        $aDefaults = array (
            'mode' => 'recent',
            'params' => false,
            'design_box' => BX_DB_PADDING_DEF,
            'empty_message' => false,
            'ajax_paginate' => true,
            'class_search_result' => 'SearchResult'
        );

        $aParams = array_merge($aDefaults, $aParams);
        
        return $this->_serviceBrowse ($aParams['mode'], $aParams['params'], $aParams['design_box'], $aParams['empty_message'], $aParams['ajax_paginate'], $aParams['class_search_result']);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-browsing Browsing
     * @subsubsection bx_base_general-browse_featured browse_featured
     * 
     * @code bx_srv('bx_posts', 'browse_featured', [...]); @endcode
     * 
     * Display featured entries
     * @param $sUnitView browsing unity view, 
     *                   such as: full, extended, gallery, showcase
     * @param $bEmptyMessage display or not "empty" message when there is no content
     * @param $bAjaxPaginate use AJAX paginate or not
     * 
     * @see BxBaseModGeneralModule::serviceBrowseFeatured
     */
    /** 
     * @ref bx_base_general-browse_featured "browse_featured"
     */
    public function serviceBrowseFeatured ($sUnitView = false, $bEmptyMessage = false, $bAjaxPaginate = true)
    {
        return $this->_serviceBrowse ('featured', $sUnitView ? array('unit_view' => $sUnitView) : false, BX_DB_PADDING_DEF, $bEmptyMessage, $bAjaxPaginate);
    }
	
    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-browsing Browsing
     * @subsubsection bx_base_general-browse_favorite browse_favorite
     * 
     * @code bx_srv('bx_posts', 'browse_favorite', [...]); @endcode
     * 
     * Display entries which were added to favorite list by some member
     * @param $iProfileId profile ID
     * @param $aParams additional browse params, see BxBaseModGeneralModule::serviceBrowse
     * 
     * @see BxBaseModGeneralModule::serviceBrowseFavorite BxBaseModGeneralModule::serviceBrowse
     */
    /** 
     * @ref bx_base_general-browse_favorite "browse_favorite"
     */
    public function serviceBrowseFavorite ($iProfileId = 0, $aParams = array())
    {
        $CNF = &$this->_oConfig->CNF;

        $oProfile = null;
        if((int)$iProfileId)
            $oProfile = BxDolProfile::getInstance($iProfileId);
        if(!$oProfile && bx_get('profile_id') !== false)
            $oProfile = BxDolProfile:: getInstance(bx_process_input(bx_get('profile_id'), BX_DATA_INT));
        if(!$oProfile)
            $oProfile = BxDolProfile::getInstance();
        if(!$oProfile)
            return '';

        $bEmptyMessage = true;
        if(isset($aParams['empty_message'])) {
            $bEmptyMessage = (bool)$aParams['empty_message'];
            unset($aParams['empty_message']);
        }
        
        if(bx_get('list_id') !== false && !isset($aParams['list_id']))
            $aParams['list_id'] = (int) bx_get('list_id');        

        $aBlock = $this->_serviceBrowse ('favorite', array_merge(array('user' => $oProfile->id()), $aParams), BX_DB_PADDING_DEF, $bEmptyMessage);
        if(!$aBlock)
            return $aBlock;

        $sTitle = _t('_sys_txt_default_favorite_list');
        if(!empty($aParams['list_id']) && ($oFavorite = BxDolFavorite::getObjectInstance($CNF['OBJECT_FAVORITES'], 0, true))) {
            $aList = $oFavorite->getQueryObject()->getList(['type' => 'id', 'list_id' => $aParams['list_id']]);
            if(!empty($aList) && is_array($aList))
                $sTitle = $aList['title'];
        }

        return array_merge($aBlock, ['markers' => [
            'title' => $sTitle
        ]]);
    }
    
    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-browsing Browsing
     * @subsubsection bx_base_general-browse_favorite_lists browse_favorite_lists
     * 
     * @code bx_srv('bx_posts', 'browse_favorite_lists', [...]); @endcode
     * 
     * Display entries which were added to favorite lists grouped by lists by some member
     * @param $iProfileId profile ID
     * @param $aParams additional browse params, see BxBaseModGeneralModule::serviceBrowse
     * 
     * @see BxBaseModGeneralModule::serviceBrowseFavoriteLists BxBaseModGeneralModule::serviceBrowse
     */
    /** 
     * @ref bx_base_general-browse_favorite_lists "browse_favorite_lists"
     */
    public function serviceBrowseFavoriteLists ($iProfileId = 0, $aParams = array())
    {
        $CNF = &$this->_oConfig->CNF;
        
        $oProfile = null;
        if((int)$iProfileId)
            $oProfile = BxDolProfile::getInstance($iProfileId);
        if(!$oProfile && bx_get('profile_id') !== false)
            $oProfile = BxDolProfile:: getInstance(bx_process_input(bx_get('profile_id'), BX_DATA_INT));
        if(!$oProfile)
            $oProfile = BxDolProfile::getInstance();
        if(!$oProfile)
            return '';
        
        $iStart = (bx_get('list_start') !== false ? (int)bx_get('list_start') : 0);
        $iPerPage = (int)getParam($CNF['PARAM_PER_PAGE_FOR_FAVORITES_LISTS']);
        
        return $this->_oTemplate->getFavoriteList($oProfile, $iStart, $iPerPage, $aParams);
    }
    
    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-browsing Browsing
     * @subsubsection bx_base_general-browse_by_category category
     * 
     * @code bx_srv('bx_posts', 'browse_by_category', [...]); @endcode
     * 
     * Display entries in category
     * @param $sUnitView browsing unity view, 
     *                   such as: full, extended, gallery, showcase
     * @param $bEmptyMessage display or not "empty" message when there is no content
     * @param $bAjaxPaginate use AJAX paginate or not
     * 
     * @see BxBaseModGeneralModule::serviceBrowseByCategory BxBaseModGeneralModule::serviceBrowse
     */
    /** 
     * @ref bx_base_general-browse_by_category "browse_by_category"
     */
    public function serviceBrowseCategory($sUnitView = false, $bEmptyMessage = true, $bAjaxPaginate = true, $aParams = [])
    {
        $sType = 'category';

        $aParams = array_merge(['category' => bx_process_input(bx_get('category'), BX_DATA_INT)], $aParams);
        if($sUnitView)
            $aParams['unit_view'] = $sUnitView;

        return $this->_serviceBrowse($sType, $aParams, BX_DB_PADDING_DEF, $bEmptyMessage, $bAjaxPaginate);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-browsing Browsing
     * @subsubsection bx_base_general-browse_multi_category category
     * 
     * @code bx_srv('bx_posts', 'browse_multi_category', [...]); @endcode
     * 
     * Display entries in multi category
     * @param $sUnitView browsing unity view, 
     *                   such as: full, extended, gallery, showcase
     * @param $bEmptyMessage display or not "empty" message when there is no content
     * @param $bAjaxPaginate use AJAX paginate or not
     * 
     * @see BxBaseModGeneralModule::serviceBrowseMultiCategory BxBaseModGeneralModule::serviceBrowse
     */
    /** 
     * @ref bx_base_general-browse_multi_category "browse_multi_category"
     */
    public function serviceBrowseMultiCategory($sUnitView = false, $bEmptyMessage = true, $bAjaxPaginate = true, $aParams = [])
    {
        $sType = 'multi_category';

        $aParams = array_merge(['category' => bx_process_input(bx_get('category'))], $aParams);
        if($sUnitView)
            $aParams['unit_view'] = $sUnitView;

        return $this->_serviceBrowse($sType, $aParams, BX_DB_PADDING_DEF, $bEmptyMessage, $bAjaxPaginate);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-browsing Browsing
     * @subsubsection bx_base_general-browse_favorite_list_actions browse_favorite_list_actions
     * 
     * @code bx_srv('bx_posts', 'browse_favorite_list_actions', [...]); @endcode
     * 
     * Display menu actions for favorite lists
     * 
     * @see BxBaseModGeneralModule::serviceFavoritesListActions
     */
    /** 
     * @ref bx_base_general-browse_favorite_list_actions "browse_favorite_list_actions"
     */
    public function serviceFavoritesListActions()
    {
        $iListId = 0;
        if(bx_get('list_id') !== false)
            $iListId = (int) bx_get('list_id');        

        $oProfile = null;
        if(bx_get('profile_id') !== false)
            $oProfile = BxDolProfile:: getInstance(bx_process_input(bx_get('profile_id'), BX_DATA_INT));
        if(!$oProfile)
            return false;

        $CNF = &$this->_oConfig->CNF;
        $oFavorite = BxDolFavorite::getObjectInstance($CNF['OBJECT_FAVORITES'], 0, true);

        $aList = $oFavorite->getQueryObject()->getList(array('type' => 'id', 'list_id' => $iListId));
        if($iListId != 0 && (empty($aList) || !is_array($aList)))
            return false;

        $sRv = '';
        if (!empty($aList) && $oFavorite->isAllowedEditList($aList['author_id'])){  
            $aMarkers = array(
                'js_object' => $oFavorite->getJsObjectName(),
                'list_id' => $iListId,
            );

            $oMenu = BxDolMenu::getObjectInstance('sys_favorite_list');

            $oMenu->addMarkers($aMarkers);
            $sMenu = $oMenu->getCode();

            $sRv .= $sMenu . $oFavorite->getJsScript();
        }

        $aMarkers = array(
            'id' => $iListId,
            'module' => $this->_aModule['name'],
            'url' => $this->_getFavoriteListUrl($iListId, $oProfile->id()),
            'title' => $iListId > 0 ? $aList['title'] : _t('_sys_txt_default_favorite_list')
        );

        $oMenu = BxDolMenu::getObjectInstance('sys_social_sharing');
        $oMenu->addMarkers($aMarkers);
        $sRv .= $sMenu = $oMenu->getCode();
        return $sRv;
    }
     
     /**
    * @page service Service Calls
    * @section bx_base_general Base General
    * @subsection bx_base_general-menu Menu
    * @subsubsection bx_base_general-favorites_list_info favorites_list_info
    * 
    * @code bx_srv('bx_posts', 'favorites_list_info', [...]); @endcode
    * 
    * Favorites list info
    * @param $aParams array with additional custom params 
    *                 which may overwrite some default values
    * 
    * @see BxBaseModGeneralModule::serviceFavoritesListInfo
    */
    /** 
    * @ref bx_base_general-favorites_list_info "favorites_list_info"
    */
    public function serviceFavoritesListInfo($aParams = array())
    {
        $CNF = &$this->_oConfig->CNF;

        $iListId = 0;
        if(bx_get('list_id') !== false)
            $iListId = (int) bx_get('list_id');       

        $oFavorite = BxDolFavorite::getObjectInstance($CNF['OBJECT_FAVORITES'], 0, true);
        $aList = $oFavorite->getQueryObject()->getList(array('type' => 'id', 'list_id' => $iListId));
        if($iListId != 0 && (empty($aList) || !is_array($aList)))
            return false;

        $oProfile = null;
        if(bx_get('profile_id') !== false)
            $oProfile = BxDolProfile:: getInstance(bx_process_input(bx_get('profile_id'), BX_DATA_INT));

        if(!$oProfile)
            return false;

        return $this->_oTemplate->getFavoritesListInfo($aList, $oProfile);
    }
    
    /**
     * Display entries posted into particular context
     * @return HTML string
     */
    public function serviceBrowseContext ($iProfileId = 0, $aParams = array())
    {
        return $this->_serviceBrowseWithParam ('context', 'profile_id', $iProfileId, $aParams);
    }

    public function serviceBrowseFollowedContexts ($iProfileId = 0, $aParams = [])
    {
        return $this->_serviceBrowseWithParam ('followed_contexts', 'profile_id', $iProfileId, $aParams);
    }

    public function _serviceBrowseWithParam ($sParamName, $sParamGet, $sParamVal, $aParams = array())
    {
        if(!$sParamVal)
            $sParamVal = bx_process_input(bx_get($sParamGet), BX_DATA_INT);
        if(!$sParamVal)
            return '';

        $bEmptyMessage = true;
        if(isset($aParams['empty_message'])) {
            $bEmptyMessage = (bool)$aParams['empty_message'];
            unset($aParams['empty_message']);
        }

        $bAjaxPaginate = true;
        if(isset($aParams['ajax_paginate'])) {
            $bAjaxPaginate = (bool)$aParams['ajax_paginate'];
            unset($aParams['ajax_paginate']);
        }

        return $this->_serviceBrowse ($sParamName, array_merge(array($sParamName => $sParamVal), $aParams), BX_DB_PADDING_DEF, $bEmptyMessage, $bAjaxPaginate);
    }

    public function getFormsHelper ()
    {
        $sClass = 'FormsEntryHelper';
        $oObject = null;

        bx_alert('system', 'get_forms_helper', 0, 0, [
            'module' => $this->getName(),
            'class' => &$sClass,
            'class_ref' => &$sClass,
            'object' => &$oObject
        ]);

        if($oObject !== null) 
            return $oObject;

        bx_import($sClass, $this->_aModule);
        $sClass = $this->_aModule['class_prefix'] . $sClass;
        return new $sClass($this);
    }

    public function serviceFormsHelper()
    {
        return $this->getFormsHelper();
    }

    /**
     * Add entry using provided fields' values.
     * @return array with result: 
     * 'code' is 0 on success or non-zero on error, 
     * 'message' is error message in case of error, 
     * 'content' is content info array in case of success
     */
    public function serviceEntityAdd($iProfile, $aValues, $sDisplay = false)
    {
        $oFormsHelper = $this->getFormsHelper();
        return $oFormsHelper->addData($iProfile, $aValues, $sDisplay);
    }

    public function serviceEntityAddForcedly($iProfile, $aValues, $sDisplay = false)
    {
        $oFormsHelper = $this->getFormsHelper();
        $oFormsHelper->setValidMode(true);
        return $oFormsHelper->addData($iProfile, $aValues, $sDisplay);
    }

    /**
     * Perform redirect after content creation
     * @return nothing, rediret header is sent
     */    
    public function serviceRedirectAfterAdd($aContentInfo)
    {
        $oFormsHelper = $this->getFormsHelper();
        $oFormsHelper->redirectAfterAdd($aContentInfo);
    }

    /**
     * Get form object for add, edit, view or delete the content 
     * @param $sType 'add', 'edit', 'view' or 'delete'
     * @param $aParams optional array with parameters(display name, etc)
     * @return form object or false on error
     */
    public function serviceGetObjectForm ($sType, $aParams = array())
    {
        if(!in_array($sType, array('add', 'edit', 'view', 'delete')))
            return false;

        $iLoggedId = (int)bx_get_logged_profile_id();
        $mixedContextId = isset($aParams['context_id']) ? $aParams['context_id'] : false;

        $oContextProfile = false;
        $bContext = $mixedContextId !== false;
        if($bContext) {
            $oContextProfile = BxDolProfile::getInstance(abs($mixedContextId));
            $bContext = $oContextProfile !== false;

            if($bContext && $oContextProfile->checkAllowedPostInProfile() !== CHECK_ACTION_RESULT_ALLOWED)
                return false;
        }

        $CNF = &$this->_oConfig->CNF;
        $oFormsHelper = $this->getFormsHelper();

        $sParamsKey = 'ajax_mode';
        if(isset($aParams[$sParamsKey]) && (bool)$aParams[$sParamsKey] === true)
            $oFormsHelper->setAjaxMode((bool)$aParams[$sParamsKey]);

        $sParamsKey = 'absolute_action_url';
        if(isset($aParams[$sParamsKey]) && (bool)$aParams[$sParamsKey] === true)
            $oFormsHelper->setAbsoluteActionUrl((bool)$aParams[$sParamsKey]);

        if($bContext)
            $oFormsHelper->setContextId($mixedContextId);

        $sDisplay = !empty($aParams['display']) ? $aParams['display'] : false;

        $sFunc = 'getObjectForm' . ucfirst($sType);
        $oForm = $oFormsHelper->$sFunc($sDisplay);

        $sParamsKey = 'visibility_auto';
        if((!isset($aParams[$sParamsKey]) || (bool)$aParams[$sParamsKey] === true) && ($sField = $CNF['FIELD_ALLOW_VIEW_TO'] ?? false) && !empty($oForm->aInputs[$sField]) && (!$bContext || $mixedContextId < 0)) {
            $bContextOwner = $bContext && abs($mixedContextId) == $iLoggedId;

            if(!$bContext || $bContextOwner) {
                $iGc = 0;
                $iKeyGh = false;
                foreach($oForm->aInputs[$sField]['values'] as $iKey => $aValue) {
                    //--- Remove empty items grouping elements (group_header and group_end w/o subitems). 
                    if(isset($aValue['type']) && in_array($aValue['type'], array('group_header', 'group_end'))) {
                        if($iKeyGh !== false && $iGc == 0) {
                            unset($oForm->aInputs[$sField]['values'][$iKeyGh]);
                            $iKeyGh = false;

                            if($aValue['type'] == 'group_end')
                                unset($oForm->aInputs[$sField]['values'][$iKey]);
                        }

                        if($aValue['type'] == 'group_header') {
                            $iGc = 0;
                            $iKeyGh = $iKey;
                        }

                        continue;
                    }

                    //--- Show 'Public' privacy group only in Public post form. 
                    if(!$bContext && $aValue['key'] == BX_DOL_PG_ALL) {
                        $iGc += 1;
                        continue;
                    }

                    //--- Show a default privacy groups in Profile (for Owner) post form.
                    if($bContextOwner && ((int)$aValue['key'] >= 0 || $mixedContextId == $aValue['key'])) {
                        $iGc += 1;
                        continue;
                    }

                    unset($oForm->aInputs[$sField]['values'][$iKey]);
                }
            }
            else {
                $oForm->aInputs[$sField]['value'] = $mixedContextId;
                $oForm->aInputs[$sField]['type'] = 'hidden';
            }
        }

        $sKey = 'FIELD_LABELS';
        if(!empty($CNF[$sKey]) && !empty($oForm->aInputs[$CNF[$sKey]]) && empty($oForm->aInputs[$CNF[$sKey]]['value']) && $bContext) {
            $iContextProfileId = $oContextProfile->id();
            $sContextModule = $oContextProfile->getModule();
            
            if(bx_srv($sContextModule, 'is_fan', [$iContextProfileId, $iLoggedId])) {
                $aContextInfo = bx_srv($sContextModule, 'get_content_info_by_profile_id', [$iContextProfileId]);
                if(!empty($aContextInfo['hashtag']))
                    $oForm->aInputs[$CNF[$sKey]]['value'] = [$aContextInfo['hashtag']];
            }
        }

        /**
         * @hooks
         * @hookdef hook-system-get_object_form 'system', 'get_object_form' - hook to override an object of create content form, @see BxDolForm
         * - $unit_name - equals `system`
         * - $action - equals `get_object_form`
         * - $object_id - not used
         * - $sender_id - not used
         * - $extra_params - array of additional params with the following array keys:
         *      - `module` - [string] module name
         *      - `type` - [string] 'add', 'edit', 'view' or 'delete' form display type
         *      - `params` - [array] form params array as key&value pairs
         *      - `form` - [object] by ref, an object of create content form, @see BxDolForm, can be overridden in hook processing
         * @hook @ref hook-system-get_object_form
         */
        bx_alert('system', 'get_object_form', 0, 0, [
            'module' => $this->_oConfig->getName(),
            'type' => $sType,
            'params' => $aParams,
            'form' => &$oForm
        ]);

        return $oForm;
    }

    /**
     *
     *
     * Create entry form
     * @return HTML string
     */
    public function serviceEntityCreate ($sParams = false)
    {
        if($this->_bIsApi && ($aParams = bx_api_get_browse_params($sParams))) {
            if(($aKeys = ['context_pid', 'context_nid', 'context_usage']) && ($aParamsContext = array_intersect_key($aParams, array_flip($aKeys)))) {
                $_GET = array_merge($_GET, $aParamsContext);
                $sParams = array_diff_key($aParams, array_flip($aKeys));
            }
        }

        $bParamsArray = is_array($sParams);

        $sDisplay = is_string($sParams) ? $sParams : false;
        if($bParamsArray && !empty($sParams['display']))
            $sDisplay = $sParams['display'];

        $oFormsHelper = $this->getFormsHelper();
        if($bParamsArray && isset($sParams['dynamic_mode']))
            $oFormsHelper->setDynamicMode($sParams['dynamic_mode']);

        $mixedResult = $oFormsHelper->addDataForm($sDisplay);
        if($this->_bIsApi)
            return $mixedResult;
        
        if(isset($mixedResult['_dt']) && $mixedResult['_dt'] == 'json') {
            echoJson($mixedResult);
            exit;
        }

        return $mixedResult;
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-forms Forms
     * @subsubsection bx_base_general-get_create_post_form get_create_post_form
     * 
     * @code bx_srv('bx_posts', 'get_create_post_form'); @endcode
     * 
     * Get content creation form
     * @param $aParams additional parameters array: 
     *                 context_id, ajax_mode, absolute_action_url, displays
     * 
     * @see BxBaseModGeneralModule::serviceGetCreatePostForm
     */
    /** 
     * @ref bx_base_general-get_create_post_form "get_create_post_form"
     */
    public function serviceGetCreatePostForm($aParams = [])
    {
    	$aParams = array_merge($this->_aFormParams, $aParams);

        if($aParams['context_id'] !== false && ($aContextInfo = BxDolProfileQuery::getInstance()->getInfoById(abs($aParams['context_id']))))
            if(bx_srv($aContextInfo['type'], 'check_allowed_post_in_profile', [$aContextInfo['content_id'], $this->getName()]) !== CHECK_ACTION_RESULT_ALLOWED)
                return '';

    	$oForm = $this->serviceGetObjectForm('add', $aParams);
    	if(!$oForm)
            return '';

    	return $this->serviceEntityCreate($aParams);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-forms Forms
     * @subsubsection bx_base_general-entity_edit entity_edit
     * 
     * @code bx_srv('bx_posts', 'entity_edit', [...]); @endcode
     * 
     * Get content edit form
     * @param $iContentId content ID
     * @param $sDisplay optional form display name
     * 
     * @see BxBaseModGeneralModule::serviceEntityEdit
     */
    /** 
     * @ref bx_base_general-entity_edit "entity_edit"
     */
    public function serviceEntityEdit ($iContentId = 0, $sDisplay = false)
    {
        return $this->_serviceEntityForm ('editDataForm', $iContentId, $sDisplay);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-forms Forms
     * @subsubsection bx_base_general-entity_delete entity_delete
     * 
     * @code bx_srv('bx_posts', 'entity_delete', [...]); @endcode
     * 
     * Get content delete form
     * @param $iContentId content ID
     * 
     * @see BxBaseModGeneralModule::serviceEntityDelete
     */
    /** 
     * @ref bx_base_general-entity_delete "entity_delete"
     */
    public function serviceEntityDelete ($iContentId = 0)
    {
        $mixedResult = $this->_serviceEntityForm ('deleteDataForm', $iContentId);
        if(!bx_is_api()) 
            return $mixedResult;

        $aResult = [];
        if(is_a($mixedResult, 'BxTemplFormView')){
            $iContentId = $this->_getContent($iContentId, false);
            $aResult = bx_api_get_block('form', $mixedResult->getCodeAPI(), ['ext' => ['name' => $this->getName(), 'request' => ['url' => '/api.php?r=' . $this->_aModule['name'] . '/entity_delete&params[]=' . $iContentId . '&params[]=' . $mixedResult->aParams['display'], 'immutable' => true]]]);
        }
        else
            $aResult = $mixedResult;

        return [
            $aResult
        ];
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-page_blocks Page Blocks
     * @subsubsection bx_base_general-entity_text_block entity_text_block
     * 
     * @code bx_srv('bx_posts', 'entity_text_block', [...]); @endcode
     * 
     * Get content text/description
     * @param $iContentId content ID
     * 
     * @see BxBaseModGeneralModule::serviceEntityTextBlock
     */
    /** 
     * @ref bx_base_general-entity_text_block "entity_text_block"
     */
    public function serviceEntityTextBlock ($iContentId = 0)
    {
        return $this->_serviceEntityForm ('viewDataEntry', $iContentId);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-page_blocks Page Blocks
     * @subsubsection bx_base_general-entity_info entity_info
     * 
     * @code bx_srv('bx_posts', 'entity_info', [...]); @endcode
     * 
     * Get content info
     * @param $iContentId content ID
     * 
     * @see BxBaseModGeneralModule::serviceEntityInfo
     */
    /** 
     * @ref bx_base_general-entity_info "entity_info"
     */
    public function serviceEntityInfo ($iContentId = 0, $sDisplay = false)
    {
        return $this->_serviceEntityForm ('viewDataForm', $iContentId, $sDisplay);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-page_blocks Page Blocks
     * @subsubsection bx_base_general-entity_info_full entity_info_full
     * 
     * @code bx_srv('bx_posts', 'entity_info_full', [...]); @endcode
     * 
     * Get full content info
     * @param $iContentId content ID
     * 
     * @see BxBaseModGeneralModule::serviceEntityInfoFull
     */
    /** 
     * @ref bx_base_general-entity_info_full "entity_info_full"
     */
	public function serviceEntityInfoFull ($iContentId = 0)
    {
    	$CNF = &$this->_oConfig->CNF;

    	$sDisplayName = 'OBJECT_FORM_ENTRY_DISPLAY_VIEW_FULL';
        return $this->_serviceEntityForm ('viewDataForm', $iContentId, !empty($CNF[$sDisplayName]) ? $CNF[$sDisplayName] : false);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-page_blocks Page Blocks
     * @subsubsection bx_base_general-entity_info_extended entity_info_extended
     * 
     * @code bx_srv('bx_posts', 'entity_info_extended', [...]); @endcode
     * 
     * Get extended content info
     * @param $iContentId content ID
     * 
     * @see BxBaseModGeneralModule::serviceEntityInfoExtended
     */
    /** 
     * @ref bx_base_general-entity_info_extended "entity_info_extended"
     */
	public function serviceEntityInfoExtended ($iContentId = 0)
    {
        return $this->_serviceTemplateFunc ('entryInfo', $iContentId);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-page_blocks Page Blocks
     * @subsubsection bx_base_general-entity_location entity_location
     * 
     * @code bx_srv('bx_posts', 'entity_location', [...]); @endcode
     * 
     * Get content location
     * @param $iContentId content ID
     * 
     * @see BxBaseModGeneralModule::serviceEntityLocation
     */
    /** 
     * @ref bx_base_general-entity_location "entity_location"
     */
    public function serviceEntityLocation ($iContentId = 0)
    {
        $CNF = &$this->_oConfig->CNF;

        $mixedContent = $this->_getContent($iContentId);
        if($mixedContent === false)
            return false;

        list($iContentId, $aContentInfo) = $mixedContent;

        $oFormsHelper = $this->getFormsHelper();
        $oFormView = $oFormsHelper->getObjectFormView();
        if(!$oFormView)
            return false;
        
        $oFormView->initChecker($aContentInfo);
        if(empty($CNF['FIELD_LOCATION']) || !$oFormView->isInputVisible($CNF['FIELD_LOCATION']))
            return false;

        return $this->_oTemplate->entryLocation ($iContentId);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-page_blocks Page Blocks
     * @subsubsection bx_base_general-entity_comments entity_comments
     * 
     * @code bx_srv('bx_posts', 'entity_comments', [...]); @endcode
     * 
     * Get content comments
     * @param $iContentId content ID
     * 
     * @see BxBaseModGeneralModule::serviceEntityComments
     */
    /** 
     * @ref bx_base_general-entity_comments "entity_comments"
     */
    public function serviceEntityComments ($iContentId = 0)
    {
        $CNF = &$this->_oConfig->CNF;
        if(empty($CNF['OBJECT_COMMENTS']))
            return '';

        return $this->_entityComments($CNF['OBJECT_COMMENTS'], $iContentId);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-page_blocks Page Blocks
     * @subsubsection bx_base_general-entity_attachments entity_attachments
     * 
     * @code bx_srv('bx_posts', 'entity_attachments', [...]); @endcode
     * 
     * Get content attachments
     * @param $iContentId content ID
     * 
     * @see BxBaseModGeneralModule::serviceEntityAttachments
     */
    /** 
     * @ref bx_base_general-entity_attachments "entity_attachments"
     */
    public function serviceEntityAttachments ($iContentId = 0)
    {
        return $this->_serviceTemplateFunc ('entryAttachments', $iContentId);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-page_blocks Page Blocks
     * @subsubsection bx_base_general-entity_polls entity_polls
     * 
     * @code bx_srv('bx_posts', 'entity_polls', [...]); @endcode
     * 
     * Display polls for the specified post
     * @param $iContentId content ID
     * 
     * @see BxBaseModGeneralModule::serviceEntityPolls
     */
    /** 
     * @ref bx_base_general-entity_polls "entity_polls"
     */
    public function serviceEntityPolls ($iContentId = 0)
    {
        return $this->_serviceTemplateFunc ('entryPolls', $iContentId);
    }

    /**
     * Delete content entry
     * @param $iContentId content id 
     * @return error message or empty string on success
     */
    public function serviceDeleteEntity ($iContentId, $sFuncDelete = 'deleteData')
    {
        $oFormsHelper = $this->getFormsHelper();
        return $oFormsHelper->$sFuncDelete($iContentId);
    }

    /**
     * Edit content entry
     * @param $iContentId content id 
     * @param $aValues key value pairs to update
     * @return error message or empty string on success
     */
    public function serviceEditEntity ($iContentId, $aValues, $sDisplay = false)
    {
        if($this->_bIsApi && is_string($aValues))
            $aValues = bx_api_get_browse_params($aValues);

        $oFormsHelper = $this->getFormsHelper();
        return $oFormsHelper->editData($iContentId, $aValues, $sDisplay);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-menu Menu
     * @subsubsection bx_base_general-my_entries_actions my_entries_actions
     * 
     * @code bx_srv('bx_posts', 'my_entries_actions', [...]); @endcode
     * 
     * My entries actions menu
     * @param $iProfileId profiles ID, 
     *        if omitted it try to get it from 'profile_id' GET param
     * 
     * @see BxBaseModGeneralModule::serviceMyEntriesActions
     */
    /** 
     * @ref bx_base_general-my_entries_actions "my_entries_actions"
     */
    public function serviceMyEntriesActions ($iProfileId = 0)
    {
        $CNF = &$this->_oConfig->CNF;
        if(empty($CNF['OBJECT_MENU_ACTIONS_MY_ENTRIES']))
            return false;

        if (!$iProfileId)
            $iProfileId = bx_process_input(bx_get('profile_id'), BX_DATA_INT);
        if (!$iProfileId || !($oProfile = BxDolProfile::getInstance($iProfileId)))
            return false;

        if ($iProfileId != $this->_iProfileId)
            return false;

        $oMenu = BxTemplMenu::getObjectInstance($CNF['OBJECT_MENU_ACTIONS_MY_ENTRIES']);
        return $oMenu ? $oMenu->getCode() : false;
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-menu Menu
     * @subsubsection bx_base_general-entity_all_actions entity_all_actions
     * 
     * @code bx_srv('bx_posts', 'entity_all_actions', [...]); @endcode
     * 
     * Entry actions and social sharing actions
     * @param $mixedContent content ID
     * @param $aParams additional params
     * 
     * @see BxBaseModGeneralModule::serviceEntityAllActions
     */
    /** 
     * @ref bx_base_general-entity_all_actions "entity_all_actions"
     */
    public function serviceEntityAllActions ($mixedContent = false, $aParams = array())
    {
        $mixedResult = $this->getEntryAllActions($mixedContent, $aParams);

        if(bx_is_api())
            return [bx_api_get_block('entity_actions', $mixedResult)];
        else
            return $this->_oTemplate->entryAllActions($mixedResult);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-menu Menu
     * @subsubsection bx_base_general-entity_actions entity_actions
     * 
     * @code bx_srv('bx_posts', 'entity_actions', [...]); @endcode
     * 
     * Entry actions, without social sharing actions
     * @param $iContentId content ID
     * 
     * @see BxBaseModGeneralModule::serviceEntityActions
     */
    /** 
     * @ref bx_base_general-entity_actions "entity_actions"
     */
    public function serviceEntityActions ($iContentId = 0)
    {
        $iContentId = $this->_getContent($iContentId, false);
        if($iContentId === false)
            return false;

        $oMenu = BxTemplMenu::getObjectInstance($this->_oConfig->CNF['OBJECT_MENU_ACTIONS_VIEW_ENTRY']);
        return $oMenu ? $oMenu->getCode() : false;
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-page_blocks Page Blocks
     * @subsubsection bx_base_general-entity_reports entity_reports
     * 
     * @code bx_srv('bx_posts', 'entity_reports', [...]); @endcode
     * 
     * Get content reports
     * @param $iContentId content ID
     * 
     * @see BxBaseModGeneralModule::serviceEntityReports
     */
    /** 
     * @ref bx_base_general-entity_reports "entity_reports"
     */
    public function serviceEntityReports ($iContentId = 0)
    {
        $mixedContent = $this->_getContent($iContentId);
        list($iContentId, $aContentInfo) = $mixedContent;
        
        if($iContentId === false)
            return false;
        
        $CNF = &$this->_oConfig->CNF;
        
        if (!isset($CNF['OBJECT_REPORTS']) || !isset($CNF['OBJECT_NOTES']))
            return false;

        if(!$aContentInfo || !(BxDolAcl::getInstance()->isMemberLevelInSet(192) || (isset($CNF['FIELD_AUTHOR']) && bx_get_logged_profile_id() == $aContentInfo[$CNF['FIELD_AUTHOR']])))
            return false;

        $oReport = BxDolReport::getObjectInstance($CNF['OBJECT_REPORTS'], $iContentId, true);
        if(!$oReport)
            return false;

        return $oReport->getReportedByWithComments($CNF['OBJECT_NOTES']);
    }
    
     /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-page_blocks Page Blocks
     * @subsubsection bx_base_general-reports_count_by_status reports_count_by_status
     * 
     * @code bx_srv('bx_posts', 'reports_count_by_status', [...]); @endcode
     * 
     * Get number of reports with specified status
     * @param $iStatus status ID
     * 
     * @see BxBaseModGeneralModule::serviceReportsCountByStatus
     */
    /** 
     * @ref bx_base_general-entity_reports "entity_reports"
     */
    public function serviceReportsCountByStatus ($iStatus)
    {
        $CNF = &$this->_oConfig->CNF;
        
        if (!isset($CNF['OBJECT_REPORTS']) || !isset($CNF['OBJECT_NOTES']))
            return false;
        
        $oReport = BxDolReport::getObjectInstance($CNF['OBJECT_REPORTS'], 0, false);
        return $oReport->getCountByStatus($iStatus);
    }
    
    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-menu Menu
     * @subsubsection bx_base_general-entity_social_sharing entity_social_sharing
     * 
     * @code bx_srv('bx_posts', 'entity_social_sharing', [...]); @endcode
     * 
     * Entry social sharing actions
     * @param $mixedContent content ID or array with integer content ID and 
     *                      array with content info, or false
     * @param $aParams array with additional custom params 
     *                 which may overwrite some default values
     * 
     * @see BxBaseModGeneralModule::serviceEntitySocialSharing
     */
    /** 
     * @ref bx_base_general-entity_social_sharing "entity_social_sharing"
     */
    public function serviceEntitySocialSharing($mixedContent = false, $aParams = array())
    {
        if(!empty($mixedContent)) {
            if(!is_array($mixedContent))
               $mixedContent = array((int)$mixedContent, array());
        }
        else {
            $mixedContent = $this->_getContent();
            if($mixedContent === false)
                return false;
        }

        list($iContentId, $aContentInfo) = $mixedContent;

        $CNF = &$this->_oConfig->CNF;

        $sUri = !empty($aParams['uri']) ? $aParams['uri'] : '';
        if(empty($sUri) && !empty($CNF['URI_VIEW_ENTRY']))
            $sUri = $CNF['URI_VIEW_ENTRY'];

        $sUrl = !empty($sUri) ? BxDolPermalinks::getInstance()->permalink('page.php?i=' . $sUri . '&id=' . $iContentId) : '';

        $sTitle = !empty($aParams['title']) ? $aParams['title'] : '';
        if(empty($sTitle) && !empty($aContentInfo[$CNF['FIELD_TITLE']]))
            $sTitle = $aContentInfo[$CNF['FIELD_TITLE']];

        $aMarkers = array(
            'id' => $iContentId,
            'module' => $this->_aModule['name'],
            'url' => bx_absolute_url($sUrl),
            'title' => $sTitle,
        );

        $iIdThumb = !empty($aParams['id_thumb']) ? (int)$aParams['id_thumb'] : 0;
        if(empty($iIdThumb) && !empty($CNF['FIELD_THUMB']) && !empty($aContentInfo[$CNF['FIELD_THUMB']]))
            $iIdThumb = (int)$aContentInfo[$CNF['FIELD_THUMB']];

        if ($iIdThumb) {
            $sTranscoder = !empty($aParams['object_transcoder']) ? $aParams['object_transcoder'] : '';
            $sStorage = !empty($aParams['object_storage']) ? $aParams['object_storage'] : '';
            if(empty($sStorage) && !empty($CNF['OBJECT_STORAGE']))
                $sStorage = $CNF['OBJECT_STORAGE'];

            if(!empty($sTranscoder))
                $o = BxDolTranscoder::getObjectInstance($sTranscoder);
            else if(!empty($sStorage))
                $o = BxDolStorage::getObjectInstance($sStorage);

            $sImgUrl = $o ? $o->getFileUrlById($iIdThumb) : '';
            if($sImgUrl)
                $aMarkers['img_url'] = $sImgUrl;
        }

        $oMenu = BxDolMenu::getObjectInstance('sys_social_sharing');
        $oMenu->addMarkers($aMarkers);
        $sMenu = $oMenu->getCode();

        if(empty($sMenu))
            return '';

        return $this->_oTemplate->parseHtmlByName('entry-share.html', array(
            'menu' => $sMenu
        ));
    }
    
    /**
     * Entry context block
     */
    public function serviceEntityContext ($iContentId = 0)
    {
        return $this->_serviceTemplateFunc ('entryContext', $iContentId);
    }

    /**
     * Blocks for lables tree browsing
     */
    public function serviceGetLablesTree()
    {
		$aBreadcrumbs = array();
		$this->_getLablesBreadcrumbsArray(bx_get('label'), $aBreadcrumbs);
		return $this->_getLablesTreeLevel($aBreadcrumbs);
	}	
    
    public function serviceGetLablesBreadcrumbs()
    {
		if (bx_get('label')){
            $aBreadcrumbs = array();
            $this->_getLablesBreadcrumbsArray(bx_process_input(bx_get('label'), BX_DATA_INT), $aBreadcrumbs);
            $aLabels = array();
            foreach (array_reverse($aBreadcrumbs) as $aLabel){
                $aLabels[] = array(
                   'value' => $aLabel['value'], 
                   'url' => $this->_getLablesBrowseUrl($aLabel['id'])
               );
            }
            
            return $this->_oTemplate->parseHtmlByName('labels_breadcrumbs.html', array('bx_repeat:items' => $aLabels));
		}
        return '';
	}
    
    public function serviceBrowseByLabel()
    {   
        $CNF = &$this->_oConfig->CNF;
        if(empty($CNF['OBJECT_METATAGS']))
            return '';

        $sMode = 'recent';
        if(bx_srv('system', 'is_module_content', [$this->_aModule['name']]))
           $sMode = 'public';

        $o = $this->getObjectBrowse($sMode);
        $o->setDesignBoxTemplateId(BX_DB_PADDING_DEF);
        $o->setDisplayEmptyMsg(true);
        $o->setAjaxPaginate(false);
        $o->setUnitParams(['context' => $sMode]);

        if(($mixedLabel = bx_get('label')) !== false) {
            $sLabel = '';
            if(is_numeric($mixedLabel) && ($aLabel = BxDolLabel::getInstance()->getLabels(['type' => 'id', 'id' => (int)$mixedLabel])) && is_array($aLabel))
                $sLabel = $aLabel['value'];
            else
                $sLabel = bx_process_url_param($mixedLabel, "/^[\d\w\s_-]+$/");

            if($sLabel)
                BxDolMetatags::getObjectInstance($CNF['OBJECT_METATAGS'])->keywordsSetSearchCondition($o, $sLabel);
        }

        if($o->isError)
            return '';

        if($s = $o->processing())
            return $s;
        else
            return '';
    }
    
    public function serviceBrowseByCategories($sUnitView, $bEmptyMessage, $bAjaxPaginate, $sMode, $iPerPage)
    {   
        $o = $this->getObjectBrowse($sMode, ['unit_view' => $sUnitView]);
        $o->setDesignBoxTemplateId(BX_DB_PADDING_DEF);
        $o->setDisplayEmptyMsg($bEmptyMessage);
        $o->setAjaxPaginate($bAjaxPaginate);
        $o->setCategoryObject('multi');

        $aCategories = BxDolCategories::getInstance()->getData([
            'type' => 'by_module_with_num', 
            'module' => $this->_aModule['name']
        ]);

        $aCategoriesOutput = [];
        foreach($aCategories as $aCategory) {
            if($aCategory['num'] > 0) {
                $o->setCustomSearchCondition(['keyword' => $aCategory['value']]);
                $o->setPaginatePerPage($iPerPage);
                if(!$o->isError){
                    $aResult = $o->processing();
                    if($aResult && $aResult['content'] != '')
                        $aCategoriesOutput[] = [
                            'name' => _t($aCategory['value']), 
                            'url' => '', 
                            'content' => $aResult['content']
                        ];
                }
            }
        }

        return $this->_oTemplate->parseHtmlByName('browse_by_categories.html', [
            'bx_repeat:categories' => $aCategoriesOutput,
        ]);
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-polls Polls Blocks
     * @subsubsection bx_base_general-get_block_poll_answers get_block_poll_answers
     * 
     * @code bx_srv('bx_posts', 'get_block_poll_answers', [...]); @endcode
     * 
     * Get block with poll answers
     * @param $iPollId poll ID
     * 
     * @see BxBaseModGeneralModule::serviceGetBlockPollAnswers
     */
    /** 
     * @ref bx_base_general-get_block_poll_answers "get_block_poll_answers"
     */
    public function serviceGetBlockPollAnswers($iPollId, $bForceDisplay = false)
    {
        if(!$iPollId)
            return false;

        if(!$bForceDisplay && $this->isPollPerformed($iPollId))
            return $this->serviceGetBlockPollResults($iPollId);

        return $this->_serviceTemplateFunc('entryPollAnswers', $iPollId, 'getPollInfoById');
    }

    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-polls Polls Blocks
     * @subsubsection bx_base_general-get_block_poll_results get_block_poll_results
     * 
     * @code bx_srv('bx_posts', 'get_block_poll_results', [...]); @endcode
     * 
     * Get block with poll results
     * @param $iPollId poll ID
     * 
     * @see BxBaseModGeneralModule::serviceGetBlockPollResults
     */
    /** 
     * @ref bx_base_general-get_block_poll_results "get_block_poll_results"
     */
    public function serviceGetBlockPollResults($iPollId)
    {
        return $this->_serviceTemplateFunc('entryPollResults', $iPollId, 'getPollInfoById');
    }

    /**
     * Data for Notifications module
     */
    public function serviceGetNotificationsData()
    {
    	$sModule = $this->_aModule['name'];

    	$sEventPrivacy = $sModule . '_allow_view_event_to';
        if(BxDolPrivacy::getObjectInstance($sEventPrivacy) === false)
            $sEventPrivacy = '';

        $aResult = [
            'handlers' => [
                ['group' => $sModule . '_object', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'added', 'module_name' => $sModule, 'module_method' => 'get_notifications_post', 'module_class' => 'Module', 'module_event_privacy' => $sEventPrivacy],
                ['group' => $sModule . '_object', 'type' => 'update', 'alert_unit' => $sModule, 'alert_action' => 'edited'],
                ['group' => $sModule . '_object', 'type' => 'delete', 'alert_unit' => $sModule, 'alert_action' => 'deleted'],

                ['group' => $sModule . '_object_approved', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'approved', 'module_name' => $sModule, 'module_method' => 'get_notifications_post_approved', 'module_class' => 'Module', 'module_event_privacy' => $sEventPrivacy],

                ['group' => $sModule . '_comment', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'commentPost', 'module_name' => $sModule, 'module_method' => 'get_notifications_comment', 'module_class' => 'Module', 'module_event_privacy' => $sEventPrivacy],
                ['group' => $sModule . '_comment', 'type' => 'delete', 'alert_unit' => $sModule, 'alert_action' => 'commentRemoved'],

                ['group' => $sModule . '_reply', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'replyPost', 'module_name' => $sModule, 'module_method' => 'get_notifications_reply', 'module_class' => 'Module', 'module_event_privacy' => $sEventPrivacy],
                ['group' => $sModule . '_reply', 'type' => 'delete', 'alert_unit' => $sModule, 'alert_action' => 'replyRemoved'],

                ['group' => $sModule . '_vote', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'doVote', 'module_name' => $sModule, 'module_method' => 'get_notifications_vote', 'module_class' => 'Module', 'module_event_privacy' => $sEventPrivacy],
                ['group' => $sModule . '_vote', 'type' => 'delete', 'alert_unit' => $sModule, 'alert_action' => 'undoVote'],

                ['group' => $sModule . '_reaction', 'type' => 'insert', 'alert_unit' => $sModule . '_reactions', 'alert_action' => 'doVote', 'module_name' => $sModule, 'module_method' => 'get_notifications_reaction', 'module_class' => 'Module', 'module_event_privacy' => $sEventPrivacy],
                ['group' => $sModule . '_reaction', 'type' => 'delete', 'alert_unit' => $sModule . '_reactions', 'alert_action' => 'undoVote'],

                ['group' => $sModule . '_score_up', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'doVoteUp', 'module_name' => $sModule, 'module_method' => 'get_notifications_score_up', 'module_class' => 'Module', 'module_event_privacy' => $sEventPrivacy],

                ['group' => $sModule . '_score_down', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'doVoteDown', 'module_name' => $sModule, 'module_method' => 'get_notifications_score_down', 'module_class' => 'Module', 'module_event_privacy' => $sEventPrivacy],

                //--- Moderation related: For 'admins'.
                ['group' => $sModule . '_object_pending_approval', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'pending_approval', 'module_name' => $sModule, 'module_method' => 'get_notifications_post_pending_approval', 'module_class' => 'Module', 'module_event_privacy' => $sEventPrivacy],
                ['group' => $sModule . '_object_reported', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'reported_content', 'module_name' => $sModule, 'module_method' => 'get_notifications_post_reported', 'module_class' => 'Module', 'module_event_privacy' => $sEventPrivacy],
            ],
            'settings' => [
                ['group' => 'content', 'unit' => $sModule, 'action' => 'added', 'types' => ['follow_member', 'follow_context']],
                ['group' => 'content_updated', 'unit' => $sModule, 'action' => 'approved', 'types' => ['personal']],
                ['group' => 'comment', 'unit' => $sModule, 'action' => 'commentPost', 'types' => ['personal', 'follow_member', 'follow_context']],
                ['group' => 'reply', 'unit' => $sModule, 'action' => 'replyPost', 'types' => ['personal']],
                ['group' => 'vote', 'unit' => $sModule, 'action' => 'doVote', 'types' => ['personal', 'follow_member', 'follow_context']],
                ['group' => 'vote', 'unit' => $sModule . '_reactions', 'action' => 'doVote', 'types' => ['personal', 'follow_member', 'follow_context']],
                ['group' => 'score_up', 'unit' => $sModule, 'action' => 'doVoteUp', 'types' => ['personal', 'follow_member', 'follow_context']],
                ['group' => 'score_down', 'unit' => $sModule, 'action' => 'doVoteDown', 'types' => ['personal', 'follow_member', 'follow_context']],

                //--- Moderation related: For 'admins'.
                ['group' => 'action_required', 'unit' => $sModule, 'action' => 'pending_approval', 'types' => ['personal']],
                ['group' => 'action_required', 'unit' => $sModule, 'action' => 'reported_content', 'types' => ['personal']],
            ],
            'alerts' => [
                ['unit' => $sModule, 'action' => 'added'],
                ['unit' => $sModule, 'action' => 'edited'],
                ['unit' => $sModule, 'action' => 'deleted'],

                ['unit' => $sModule, 'action' => 'approved'],

                ['unit' => $sModule, 'action' => 'commentPost'],
                ['unit' => $sModule, 'action' => 'commentRemoved'],

                ['unit' => $sModule, 'action' => 'replyPost'],
                ['unit' => $sModule, 'action' => 'replyRemoved'],

                ['unit' => $sModule, 'action' => 'doVote'],
                ['unit' => $sModule, 'action' => 'undoVote'],

                ['unit' => $sModule . '_reactions', 'action' => 'doVote'],
                ['unit' => $sModule . '_reactions', 'action' => 'undoVote'],

                ['unit' => $sModule, 'action' => 'doVoteUp'],
                ['unit' => $sModule, 'action' => 'doVoteDown'],

                //--- Moderation related: For 'admins'.
                ['unit' => $sModule, 'action' => 'pending_approval'],
                ['unit' => $sModule, 'action' => 'reported_content'],
            ]
        ];

        if(!empty($this->_oConfig->CNF['FIELDS_DELAYED_PROCESSING'])) {
            $aResult['handlers'] = array_merge($aResult['handlers'], [
                ['group' => $sModule . '_object_publish_failed', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'publish_failed', 'module_name' => $sModule, 'module_method' => 'get_notifications_post_publish_failed', 'module_class' => 'Module', 'module_event_privacy' => ''],
                ['group' => $sModule . '_object_publish_succeeded', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'publish_succeeded', 'module_name' => $sModule, 'module_method' => 'get_notifications_post_publish_succeeded', 'module_class' => 'Module', 'module_event_privacy' => ''],
            ]);

            $aResult['settings'] = array_merge($aResult['settings'], [
                ['group' => 'content_updated', 'unit' => $sModule, 'action' => 'publish_failed', 'types' => ['personal']],
                ['group' => 'content_updated', 'unit' => $sModule, 'action' => 'publish_succeeded', 'types' => ['personal']],
            ]);

            $aResult['alerts'] = array_merge($aResult['alerts'], [
                ['unit' => $sModule, 'action' => 'publish_failed'],
                ['unit' => $sModule, 'action' => 'publish_succeeded'],
            ]);
        }

        return $aResult;
    }

    /**
     * Entry post for Notifications module
     */
    public function serviceGetNotificationsPost($aEvent)
    {
        $CNF = &$this->_oConfig->CNF;

        $aContentInfo = $this->_oDb->getContentInfoById($aEvent['object_id']);
        if(empty($aContentInfo) || !is_array($aContentInfo))
            return [];

        $sEntryUrl = bx_absolute_url(BxDolPermalinks::getInstance()->permalink('page.php?i=' . $CNF['URI_VIEW_ENTRY'] . '&id=' . $aContentInfo[$CNF['FIELD_ID']]), '{bx_url_root}');
        $sEntryCaption = isset($aContentInfo[$CNF['FIELD_TITLE']]) ? $aContentInfo[$CNF['FIELD_TITLE']] : strmaxtextlen($aContentInfo[$CNF['FIELD_TEXT']], 20, '...');
        $sEntrySummary = isset($aContentInfo[$CNF['FIELD_TEXT']]) ? $aContentInfo[$CNF['FIELD_TEXT']] : '';

        return [
            'entry_sample' => $CNF['T']['txt_sample_single'],
            'entry_url' => $sEntryUrl,
            'entry_caption' => $sEntryCaption,
            'entry_summary' => $sEntrySummary,
            'entry_author' => $aContentInfo[$CNF['FIELD_AUTHOR']],
            'entry_privacy' => '', //may be empty or not specified. In this case Public privacy will be used.
            'lang_key' => '', //may be empty or not specified, or a string, or an array('site' => '...', 'email' => '...', 'push' => '...'). In this case of empty/not specified the default one from Notification module will be used.
            /*
             * Custom settings for email and/or push notifications can be provided here. 
             * Only necessary parts of 'settings' array can be used.
             * 
            'settings' => array(
                'email' => array(
                    'template' => '',   //--- custom email template
                    'markers' => '',    //--- markers to parse email parts (subject, body) with
                    'subject' => ''     //--- custom email subject
                ),
                'push' => array(
                    'subject' => ''     //--- custom push notification subject
                )
            )
             */
        ];
    }

    public function serviceGetNotificationsPostPendingApproval($aEvent)
    {
        return $this->serviceGetNotificationsPostForModeration($aEvent);
    }

    public function serviceGetNotificationsPostReported($aEvent)
    {
        return $this->serviceGetNotificationsPostForModeration($aEvent);
    }

    public function serviceGetNotificationsPostForModeration($aEvent)
    {
        $aResult = $this->serviceGetNotificationsPost($aEvent);

        /**
         * Unset Entry Author because the notification is addressed to 'admins'.
         */
        if(isset($aResult['entry_author']))
            unset($aResult['entry_author']);

        return $aResult;
    }

    public function serviceGetNotificationsPostApproved($aEvent)
    {
        return $this->serviceGetNotificationsPost($aEvent);
    }

    public function serviceGetNotificationsPostPublishFailed($aEvent)
    {
        return $this->serviceGetNotificationsPost($aEvent);
    }

    public function serviceGetNotificationsPostPublishSucceeded($aEvent)
    {
        return $this->serviceGetNotificationsPost($aEvent);
    }


    /**
     * Entry post comment for Notifications module
     */
    public function serviceGetNotificationsComment($aEvent)
    {
        $CNF = &$this->_oConfig->CNF;

        $iContentId = (int)$aEvent['object_id'];
        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo) || !is_array($aContentInfo))
            return [];

        $oComment = BxDolCmts::getObjectInstance($CNF['OBJECT_COMMENTS'], $iContentId);
        if(!$oComment || !$oComment->isEnabled())
            return [];

        $sEntryUrl = bx_absolute_url(BxDolPermalinks::getInstance()->permalink('page.php?i=' . $CNF['URI_VIEW_ENTRY'] . '&id=' . $aContentInfo[$CNF['FIELD_ID']]), '{bx_url_root}');
        $sEntryCaption = isset($aContentInfo[$CNF['FIELD_TITLE']]) ? $aContentInfo[$CNF['FIELD_TITLE']] : strmaxtextlen($aContentInfo[$CNF['FIELD_TEXT']], 20, '...');
        $sEntrySummary = isset($aContentInfo[$CNF['FIELD_TEXT']]) ? $aContentInfo[$CNF['FIELD_TEXT']] : '';

        $iCommentId = (int)$aEvent['subobject_id'];

        return [
            'entry_sample' => $CNF['T']['txt_sample_single'],
            'entry_url' => $sEntryUrl,
            'entry_caption' => $sEntryCaption,
            'entry_summary' => $sEntrySummary,
            'entry_author' => $aContentInfo[$CNF['FIELD_AUTHOR']],
            'subentry_sample' => $CNF['T']['txt_sample_comment_single'],
            'subentry_url' => $oComment->getItemUrl($iCommentId, '{bx_url_root}'),
            'subentry_url_api' => $oComment->getItemUrlApi($iCommentId, '{bx_url_root}'),
            'subentry_summary' => $oComment->getViewText($iCommentId),
            'lang_key' => '', //may be empty or not specified. In this case the default one from Notification module will be used.
        ];
    }

	/**
     * Entry post reply for Notifications module
     */
    public function serviceGetNotificationsReply($aEvent)
    {
        $CNF = &$this->_oConfig->CNF;

        $oComment = BxDolCmts::getObjectInstance($CNF['OBJECT_COMMENTS'], 0, false);
        if(!$oComment || !$oComment->isEnabled())
            return [];

        $iParentId = (int)$aEvent['object_id'];
        $aParentInfo = $oComment->getQueryObject()->getCommentsBy(['type' => 'id', 'id' => $iParentId]);
        if(empty($aParentInfo) || !is_array($aParentInfo))
            return [];

        $iObjectId = (int)$aParentInfo['cmt_object_id'];
        $oComment->init($iObjectId);
        $iCommentId = (int)$aEvent['subobject_id'];

        return [
            'object_id' => $iObjectId,
            'entry_sample' => '_cmt_txt_sample_comment_single',
            'entry_url' => $oComment->getItemUrl($iParentId, '{bx_url_root}'),
            'entry_url_api' => $oComment->getItemUrlApi($iParentId, '{bx_url_root}'),
            'entry_caption' => strmaxtextlen($aParentInfo['cmt_text'], 20, '...'),
            'entry_summary' => $oComment->getViewText($iParentId),
            'entry_author' => (int)$aParentInfo['cmt_author_id'],
            'subentry_sample' => '_cmt_txt_sample_reply_to',
            'subentry_url' => $oComment->getItemUrl($iCommentId, '{bx_url_root}'),
            'subentry_url_api' => $oComment->getItemUrlApi($iCommentId, '{bx_url_root}'),
            'subentry_summary' => $oComment->getViewText($iCommentId),
            'lang_key' => '', //may be empty or not specified. In this case the default one from Notification module will be used.
        ];
    }

	/**
     * Entry post vote for Notifications module
     */
    public function serviceGetNotificationsVote($aEvent)
    {
        $CNF = &$this->_oConfig->CNF;

        $iContentId = (int)$aEvent['object_id'];
        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo) || !is_array($aContentInfo))
            return [];

        $oVote = BxDolVote::getObjectInstance($CNF['OBJECT_VOTES'], $iContentId);
        if(!$oVote || !$oVote->isEnabled())
            return [];

        $sEntryUrl = bx_absolute_url(BxDolPermalinks::getInstance()->permalink('page.php?i=' . $CNF['URI_VIEW_ENTRY'] . '&id=' . $aContentInfo[$CNF['FIELD_ID']]), '{bx_url_root}');
        $sEntryCaption = isset($aContentInfo[$CNF['FIELD_TITLE']]) ? $aContentInfo[$CNF['FIELD_TITLE']] : strmaxtextlen($aContentInfo[$CNF['FIELD_TEXT']], 20, '...');
        $sEntrySummary = isset($aContentInfo[$CNF['FIELD_TEXT']]) ? $aContentInfo[$CNF['FIELD_TEXT']] : '';

        return [
            'entry_sample' => $CNF['T']['txt_sample_single'],
            'entry_url' => $sEntryUrl,
            'entry_caption' => $sEntryCaption,
            'entry_summary' => $sEntrySummary,
            'entry_author' => $aContentInfo[$CNF['FIELD_AUTHOR']],
            'subentry_sample' => $CNF['T']['txt_sample_vote_single'],
            'lang_key' => '', //may be empty or not specified. In this case the default one from Notification module will be used.
        ];
    }

    /**
     * Entry post vote for Notifications module
     */
    public function serviceGetNotificationsReaction($aEvent)
    {
    	$CNF = &$this->_oConfig->CNF;

    	$iContentId = (int)$aEvent['object_id'];
        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo) || !is_array($aContentInfo))
            return [];

        $oReaction = BxDolVote::getObjectInstance($CNF['OBJECT_REACTIONS'], $iContentId);
        if(!$oReaction || !$oReaction->isEnabled())
            return [];

        $aSubentry = $oReaction->getTrackBy(array('type' => 'id', 'id' => (int)$aEvent['subobject_id']));
        if(empty($aSubentry) || !is_array($aSubentry))
            return [];

        $aSubentrySampleParams = array();
        $aReaction = $oReaction->getReaction($aSubentry['reaction']);
        if(!empty($aReaction['title']))
            $aSubentrySampleParams[] = $aReaction['title'];
        else
            $aSubentrySampleParams[] = '_undefined';

        $sEntryUrl = bx_absolute_url(BxDolPermalinks::getInstance()->permalink('page.php?i=' . $CNF['URI_VIEW_ENTRY'] . '&id=' . $aContentInfo[$CNF['FIELD_ID']]), '{bx_url_root}');
        $sEntryCaption = isset($aContentInfo[$CNF['FIELD_TITLE']]) ? $aContentInfo[$CNF['FIELD_TITLE']] : strmaxtextlen($aContentInfo[$CNF['FIELD_TEXT']], 20, '...');
        $sEntrySummary = isset($aContentInfo[$CNF['FIELD_TEXT']]) ? $aContentInfo[$CNF['FIELD_TEXT']] : '';

        return [
            'entry_sample' => $CNF['T']['txt_sample_single'],
            'entry_url' => $sEntryUrl,
            'entry_caption' => $sEntryCaption,
            'entry_summary' => $sEntrySummary,
            'entry_author' => $aContentInfo[$CNF['FIELD_AUTHOR']],
            'subentry_sample' => $CNF['T']['txt_sample_reaction_single'],
            'subentry_sample_params' => $aSubentrySampleParams,
            'lang_key' => '', //may be empty or not specified. In this case the default one from Notification module will be used.
        ];
    }

    /**
     * Entry post score -> vote up for Notifications module
     */
    public function serviceGetNotificationsScoreUp($aEvent)
    {
    	return $this->_serviceGetNotificationsScore('up', $aEvent);
    }

    /**
     * Entry post score -> vote up for Notifications module
     */
    public function serviceGetNotificationsScoreDown($aEvent)
    {
    	return $this->_serviceGetNotificationsScore('down', $aEvent);
    }

    protected function _serviceGetNotificationsScore($sType, $aEvent)
    {
    	$CNF = &$this->_oConfig->CNF;

    	$iContentId = (int)$aEvent['object_id'];
        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo) || !is_array($aContentInfo))
            return array();

        $oScore = BxDolScore::getObjectInstance($CNF['OBJECT_SCORES'], $iContentId);
        if(!$oScore || !$oScore->isEnabled())
            return array();

        $sEntryUrl = bx_absolute_url(BxDolPermalinks::getInstance()->permalink('page.php?i=' . $CNF['URI_VIEW_ENTRY'] . '&id=' . $aContentInfo[$CNF['FIELD_ID']]), '{bx_url_root}');
        $sEntryCaption = isset($aContentInfo[$CNF['FIELD_TITLE']]) ? $aContentInfo[$CNF['FIELD_TITLE']] : strmaxtextlen($aContentInfo[$CNF['FIELD_TEXT']], 20, '...');
        $sEntrySummary = isset($aContentInfo[$CNF['FIELD_TEXT']]) ? $aContentInfo[$CNF['FIELD_TEXT']] : '';

        return [
            'entry_sample' => $CNF['T']['txt_sample_single'],
            'entry_url' => $sEntryUrl,
            'entry_caption' => $sEntryCaption,
            'entry_summary' => $sEntrySummary,
            'entry_author' => $aContentInfo[$CNF['FIELD_AUTHOR']],
            'subentry_sample' => $CNF['T']['txt_sample_score_' . $sType . '_single'],
            'lang_key' => '', //may be empty or not specified. In this case the default one from Notification module will be used.
        ];
    }

    /**
     * Data for Reputation module
     */
    public function serviceGetReputationData()
    {
    	$sModule = $this->_aModule['name'];

        $aResult = [
            'handlers' => [
                ['group' => $sModule . '_object', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'added', 'points_active' => 3, 'points_passive' => 0],
                ['group' => $sModule . '_object', 'type' => 'delete', 'alert_unit' => $sModule, 'alert_action' => 'deleted', 'points_active' => -3, 'points_passive' => 0],

                ['group' => $sModule . '_comment', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'commentPost', 'points_active' => 2, 'points_passive' => 1],
                ['group' => $sModule . '_comment', 'type' => 'delete', 'alert_unit' => $sModule, 'alert_action' => 'commentRemoved', 'points_active' => -2, 'points_passive' => -1],

                ['group' => $sModule . '_vote', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'doVote', 'points_active' => 1, 'points_passive' => 1],
                ['group' => $sModule . '_vote', 'type' => 'delete', 'alert_unit' => $sModule, 'alert_action' => 'undoVote', 'points_active' => -1, 'points_passive' => -1],

                ['group' => $sModule . '_reaction', 'type' => 'insert', 'alert_unit' => $sModule . '_reactions', 'alert_action' => 'doVote', 'points_active' => 1, 'points_passive' => 1],
                ['group' => $sModule . '_reaction', 'type' => 'delete', 'alert_unit' => $sModule . '_reactions', 'alert_action' => 'undoVote', 'points_active' => -1, 'points_passive' => -1],

                ['group' => $sModule . '_score_up', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'doVoteUp', 'points_active' => 1, 'points_passive' => 1],
                ['group' => $sModule . '_score_up', 'type' => 'delete', 'alert_unit' => $sModule, 'alert_action' => 'undoVoteUp', 'points_active' => -1, 'points_passive' => -1],

                ['group' => $sModule . '_score_down', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'doVoteDown', 'points_active' => 1, 'points_passive' => -1],
                ['group' => $sModule . '_score_down', 'type' => 'delete', 'alert_unit' => $sModule, 'alert_action' => 'undoVoteDown', 'points_active' => -1, 'points_passive' => 1],
            ],
            'alerts' => [
                ['unit' => $sModule, 'action' => 'added'],
                ['unit' => $sModule, 'action' => 'deleted'],

                ['unit' => $sModule, 'action' => 'commentPost'],
                ['unit' => $sModule, 'action' => 'commentRemoved'],

                ['unit' => $sModule, 'action' => 'doVote'],
                ['unit' => $sModule, 'action' => 'undoVote'],

                ['unit' => $sModule . '_reactions', 'action' => 'doVote'],
                ['unit' => $sModule . '_reactions', 'action' => 'undoVote'],

                ['unit' => $sModule, 'action' => 'doVoteUp'],
                ['unit' => $sModule, 'action' => 'undoVoteUp'],
                ['unit' => $sModule, 'action' => 'doVoteDown'],
                ['unit' => $sModule, 'action' => 'undoVoteDown'],
            ]
        ];

        return $aResult;
    }

    /**
     * Data for Timeline module
     */
    public function serviceGetTimelineData()
    {
    	$sModule = $this->_aModule['name'];

        return array(
            'handlers' => array(
                array('group' => $sModule . '_object', 'type' => 'insert', 'alert_unit' => $sModule, 'alert_action' => 'added', 'module_name' => $sModule, 'module_method' => 'get_timeline_post', 'module_class' => 'Module',  'groupable' => 0, 'group_by' => ''),
                array('group' => $sModule . '_object', 'type' => 'update', 'alert_unit' => $sModule, 'alert_action' => 'edited'),
                array('group' => $sModule . '_object', 'type' => 'delete', 'alert_unit' => $sModule, 'alert_action' => 'deleted')
            ),
            'alerts' => array(
                array('unit' => $sModule, 'action' => 'added'),
                array('unit' => $sModule, 'action' => 'edited'),
                array('unit' => $sModule, 'action' => 'deleted'),
            )
        );
    }

    /**
     * Entry post for Timeline module
     */
    public function serviceGetTimelinePost($aEvent, $aBrowseParams = array())
    {
        $aContentInfo = $this->_oDb->getContentInfoById($aEvent['object_id']);
        if(empty($aContentInfo) || !is_array($aContentInfo))
            return false;

        $CNF = &$this->_oConfig->CNF;

        if((!empty($CNF['FIELD_STATUS']) && $aContentInfo[$CNF['FIELD_STATUS']] != 'active') || (!empty($CNF['FIELD_STATUS_ADMIN']) && $aContentInfo[$CNF['FIELD_STATUS_ADMIN']] != 'active'))
            return false;

        $bCache = true;
        $iUserId = $this->getUserId();
        $iAuthorId = (int)$aContentInfo[$CNF['FIELD_AUTHOR']];
        $iAuthorIdAbs = abs($iAuthorId);

        /**
         * Don't show anonymous posts on the post's owner timeline
         * and don't cache them when they're viewed by their authors. 
         */
        if($iAuthorId < 0 && ((is_numeric($aEvent['owner_id']) && $iAuthorIdAbs == (int)$aEvent['owner_id']) || (is_array($aEvent['owner_id']) && in_array($iAuthorIdAbs, $aEvent['owner_id'])))) {
            if($iAuthorIdAbs != $iUserId)
                return false;

            $bCache = false;
        }

        //--- Views
        $oViews = isset($CNF['OBJECT_VIEWS']) ? BxDolView::getObjectInstance($CNF['OBJECT_VIEWS'], $aContentInfo[$CNF['FIELD_ID']]) : null;

        $aViews = array();
        if ($oViews && $oViews->isEnabled())
            $aViews = array(
                'system' => $CNF['OBJECT_VIEWS'],
                'object_id' => $aContentInfo[$CNF['FIELD_ID']],
                'count' => $aContentInfo['views']
            );

        //--- Votes
        $oVotes = isset($CNF['OBJECT_VOTES']) ? BxDolVote::getObjectInstance($CNF['OBJECT_VOTES'], $aContentInfo[$CNF['FIELD_ID']]) : null;

        $aVotes = array();
        if ($oVotes && $oVotes->isEnabled())
            $aVotes = array(
                'system' => $CNF['OBJECT_VOTES'],
                'object_id' => $aContentInfo[$CNF['FIELD_ID']],
                'count' => $aContentInfo['votes']
            );
        
        //--- Reactions
        $oReactions = isset($CNF['OBJECT_REACTIONS']) ? BxDolVote::getObjectInstance($CNF['OBJECT_REACTIONS'], $aContentInfo[$CNF['FIELD_ID']]) : null;

        $aReactions = array();
        if ($oReactions && $oReactions->isEnabled())
            $aReactions = array(
                'system' => $CNF['OBJECT_REACTIONS'],
                'object_id' => $aContentInfo[$CNF['FIELD_ID']],
                'count' => $aContentInfo['rvotes']
            );

        //--- Scores
        $oScores = isset($CNF['OBJECT_SCORES']) ? BxDolScore::getObjectInstance($CNF['OBJECT_SCORES'], $aContentInfo[$CNF['FIELD_ID']]) : null;

        $aScores = array();
        if ($oScores && $oScores->isEnabled())
            $aScores = array(
                'system' => $CNF['OBJECT_SCORES'],
                'object_id' => $aContentInfo[$CNF['FIELD_ID']],
                'score' => $aContentInfo['score']
            );

        //--- Reports
        $oReports = isset($CNF['OBJECT_REPORTS']) ? BxDolReport::getObjectInstance($CNF['OBJECT_REPORTS'], $aContentInfo[$CNF['FIELD_ID']]) : null;

        $aReports = array();
        if ($oReports && $oReports->isEnabled())
            $aReports = array(
                'system' => $CNF['OBJECT_REPORTS'],
                'object_id' => $aContentInfo[$CNF['FIELD_ID']],
                'count' => $aContentInfo['reports']
            );

        //--- Comments
        $oCmts = isset($CNF['OBJECT_COMMENTS']) ? BxDolCmts::getObjectInstance($CNF['OBJECT_COMMENTS'], $aContentInfo[$CNF['FIELD_ID']]) : null;

        $aComments = array();
        if($oCmts && $oCmts->isEnabled())
            $aComments = array(
                'system' => $CNF['OBJECT_COMMENTS'],
                'object_id' => $aContentInfo[$CNF['FIELD_ID']],
                'count' => $aContentInfo['comments']
            );

        //--- Title & Description
        $sTitle = !empty($aContentInfo[$CNF['FIELD_TITLE']]) ? $aContentInfo[$CNF['FIELD_TITLE']] : '';
        if(empty($sTitle) && !empty($aContentInfo[$CNF['FIELD_TEXT']]))
            $sTitle = $aContentInfo[$CNF['FIELD_TEXT']];

        $iOwnerId = $iAuthorIdAbs;
        if(isset($aEvent['object_privacy_view']) && (int)$aEvent['object_privacy_view'] < 0)
            $iOwnerId = abs($aEvent['object_privacy_view']);

        $aContent = $this->_getContentForTimelinePost($aEvent, $aContentInfo, $aBrowseParams);
        if(isset($aContent['_cache'])) {
            if($bCache)
                $bCache = (bool)$aContent['_cache'];

            unset($aContent['_cache']);
        }

        return [
            '_cache' => $bCache,
            'owner_id' => $iOwnerId,
            'object_owner_id' => $iAuthorId,
            'icon' => !empty($CNF['ICON']) ? $CNF['ICON'] : '',
            'sample' => isset($CNF['T']['txt_sample_single_with_article']) ? $CNF['T']['txt_sample_single_with_article'] : $CNF['T']['txt_sample_single'],
            'sample_wo_article' => $CNF['T']['txt_sample_single'],
            'sample_action' => isset($CNF['T']['txt_sample_action']) ? $CNF['T']['txt_sample_action'] : '',
            'url' => bx_absolute_url(BxDolPermalinks::getInstance()->permalink('page.php?i=' . $CNF['URI_VIEW_ENTRY'] . '&id=' . $aContentInfo[$CNF['FIELD_ID']])),
            'content' => $aContent, //a string to display or array to parse default template before displaying.
            'date' => $aContentInfo[$CNF['FIELD_ADDED']],
            'views' => $aViews,
            'votes' => $aVotes,
            'reactions' => $aReactions,
            'scores' => $aScores,
            'reports' => $aReports,
            'comments' => $aComments,
            'title' => $sTitle, //may be empty.
            'description' => '' //may be empty.
        ];
    }

    public function serviceGetTimelinePostAllowedView($aEvent)
    {
        $iContentId = (int)$aEvent['object_id'];
        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo) || !is_array($aContentInfo))
            return _t('_sys_txt_access_denied');

        return $this->serviceCheckAllowedViewForProfile($aContentInfo);
    }

    /**
     * Check particular action permission without content
     * @param $sAction action to check, for example: Browse, Add
     * @param $iContentId content ID
     * @return message on error, or CHECK_ACTION_RESULT_ALLOWED when allowed
     */ 
    public function serviceCheckAllowed($sAction, $isPerformAction = false)
    {
        $sMethod = 'checkAllowed' . bx_gen_method_name($sAction);
        if (!method_exists($this, $sMethod))
            return _t('_sys_request_method_not_found_cpt');

        return $this->$sMethod($isPerformAction);
    }
    
    /**
     * Check particular action permission with content
     * @param $sAction action to check, for example: View, Edit
     * @param $iContentId content ID
     * @return message on error, or CHECK_ACTION_RESULT_ALLOWED when allowed
     */ 
    public function serviceCheckAllowedWithContent($sAction, $iContentId, $isPerformAction = false)
    {
        if (!$iContentId || !($aContentInfo = $this->_oDb->getContentInfoById($iContentId)))
            return _t('_sys_request_page_not_found_cpt');

        $sMethod = 'checkAllowed' . bx_gen_method_name($sAction);
        if (!method_exists($this, $sMethod))
            return _t('_sys_request_method_not_found_cpt');

        return $this->$sMethod($aContentInfo, $isPerformAction);
    }

    /**
     * Check particular action permission with content for specified profile
     * @param $sAction action to check, for example: View, Edit
     * @param $iContentId content ID
     * @param $iProfileId profile ID which the permissions to be cheked for
     * @return message on error, or CHECK_ACTION_RESULT_ALLOWED when allowed
     */ 
    public function serviceCheckAllowedWithContentForProfile($sAction, $iContentId, $iProfileId, $isPerformAction = false)
    {
        if (!$iContentId || !($aContentInfo = $this->_oDb->getContentInfoById($iContentId)))
            return _t('_sys_request_page_not_found_cpt');

        $sMethod = 'checkAllowed' . bx_gen_method_name($sAction) . 'ForProfile';
        if (!method_exists($this, $sMethod))
            return _t('_sys_request_method_not_found_cpt');

        return $this->$sMethod($aContentInfo, $iProfileId, $isPerformAction);
    }
    
    public function serviceCheckAllowedCommentsView($iContentId, $sObjectComments) 
    {
        //negative id used in comments for reports
        if ($iContentId < 0)
            return CHECK_ACTION_RESULT_ALLOWED;
        
        return $this->serviceCheckAllowedWithContent('comments_view', $iContentId);
    }
    
    public function serviceCheckAllowedCommentsPost($iContentId, $sObjectComments) 
    {
        //negative id used in comments for reports
        if ($iContentId < 0)
            return CHECK_ACTION_RESULT_ALLOWED;
        
        return $this->serviceCheckAllowedWithContent('comments_post', $iContentId);
    }

    public function serviceGetContentOwnerProfileId ($iContentId)
    {
        $CNF = &$this->_oConfig->CNF;

        // file owner must be author of the content or profile itself in case of profile based module
        if ($iContentId) {
            $sModule = $this->getName();
            if ($this instanceof iBxDolProfileService && BxDolService::call($sModule, 'act_as_profile')) {
                $oProfile = BxDolProfile::getInstanceByContentAndType($iContentId, $sModule);
            }
            else {
                $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
                $iContentAuthor = (int)$aContentInfo[$CNF['FIELD_AUTHOR']];
                if($iContentAuthor < 0)
                    $iContentAuthor = abs($iContentAuthor);

                $oProfile = $aContentInfo ? BxDolProfile::getInstance($iContentAuthor) : null;
            }

            $iProfileId = $oProfile ? $oProfile->id() : bx_get_logged_profile_id();
        }
        else
            $iProfileId = bx_get_logged_profile_id();

        return $iProfileId;
    }
	
    public function serviceGetBadges($iContentId,  $bIsSingle = false, $bIsCompact  = false)
    {
        $sModule = $this->getName();

        $oBadges = BxDolBadges::getInstance();
        $aBadges = $oBadges->getData(array(
            'type' => ($bIsSingle ? 'by_module&object2_single' : 'by_module&object2'),
            'module' => $sModule,
            'object_id' => $iContentId
        ));

        $sResult = false;
        /**
         * @hooks
         * @hookdef hook-system-get_badges 'system', 'get_badges' - hook to override bages assigned to an entry (content)
         * - $unit_name - equals `system`
         * - $action - equals `get_badges`
         * - $object_id - not used
         * - $sender_id - not used
         * - $extra_params - array of additional params with the following array keys:
         *      - `module` - [string] module name
         *      - `content_id` - [int] content id
         *      - `is_single` - [boolean] only one badge can be used or not
         *      - `is_compact` - [boolean] badge in compact mode or not
         *      - `badges` - [array] a list of all badges assigned to the content
         *      - `override_result` - [string] or [boolean] by ref, if string is returned then it will be used as resulting badges code, can be overridden in hook processing
         * @hook @ref hook-system-get_badges
         */
        bx_alert('system', 'get_badges', 0, 0, [
            'module' => $sModule, 
            'content_id' => $iContentId,
            'is_single' => $bIsSingle,
            'is_compact' => $bIsCompact,
            'badges' => $aBadges, 
            'override_result' => &$sResult
        ]);
        if($sResult !== false)
            return $sResult;

        if(empty($aBadges) || !is_array($aBadges))
            return $this->_bIsApi ? [] : '';

        if($this->_bIsApi) {
            foreach($aBadges as &$aBadge)
                if(($mixedIcon = $aBadge['icon']) && is_numeric($mixedIcon) && (int)$mixedIcon > 0)
                    $aBadge['icon_url'] = $this->_oTemplate->getIcon($aBadge['icon'], ['wrap_in_tag' => false]);
                else
                    $aBadge['icon'] = $mixedIcon;

            return $aBadges;
        }

        if($bIsSingle)
            return BxDolService::call('system', 'get_badge', array($aBadges[0], $bIsCompact), 'TemplServices');

        $aBadgesOutput = array();
        foreach($aBadges as $aBadge)
            $aBadgesOutput[] =  array('badge' => BxDolService::call('system', 'get_badge', array($aBadge, $bIsCompact), 'TemplServices'));

        return $this->_oTemplate->parseHtmlByName('badges.html', array(
            'bx_repeat:items' => $aBadgesOutput,
        ));
    }
    
    /**
     * @page service Service Calls
     * @section bx_base_general Base General
     * @subsection bx_base_general-page_blocks Page Blocks
     * @subsubsection bx_base_general-categories_multi_list categories_multi_list
     * 
     * @code bx_srv('bx_posts', 'categories_multi_list', [...]); @endcode
     * 
     * Display multi-categorories block with number of posts in each category
     * @param $bAsArray boolean reature as array or not.
     * 
     * @see BxBaseModGeneralModule::serviceCategoriesMultiList
     */
    /** 
     * @ref bx_base_general-categories_multi_list "categories_multi_list"
     */
    public function serviceCategoriesMultiList($bAsArray = false)
    {
        $oCategories = BxDolCategories::getInstance();
        $oCategories->setModule($this->getName());
        $mixedResult = $oCategories->getCategoriesList($bAsArray || $this->_bIsApi);

        return !$this->_bIsApi ? $mixedResult : [bx_api_get_block('categories_list',  $mixedResult)];
    }

    /**
     * ======
     * PERMISSION METHODS
     * ======
     */
    public function serviceCheckAllowedViewForProfile ($aDataEntry, $isPerformAction = false, $iProfileId = false)
    {
        $mixedResult = $this->_serviceCheckAllowedViewForProfile ($aDataEntry, $isPerformAction, $iProfileId);

        /**
         * @hooks
         * @hookdef hook-system-check_allowed_view 'system', 'check_allowed_view' - hook to override the result of checking whether 'view' action is allowed or not to specified profile
         * - $unit_name - equals `system`
         * - $action - equals `check_allowed_view`
         * - $object_id - not used
         * - $sender_id - not used
         * - $extra_params - array of additional params with the following array keys:
         *      - `module` - [string] module name
         *      - `content_info` - [array] content info array as key&value pairs
         *      - `profile_id` - [boolean] or [int] profile id to be checked the availability of the action to
         *      - `override_result` - [string] or [int] by ref, check action result, can be overridden in hook processing. Return string with an error if action isn't allowed or CHECK_ACTION_RESULT_ALLOWED, @see BxDolAcl
         * @hook @ref hook-system-check_allowed_view
         */
        bx_alert('system', 'check_allowed_view', 0, 0, [
            'module' => $this->getName(), 
            'content_info' => $aDataEntry, 
            'profile_id' => $iProfileId, 
            'override_result' => &$mixedResult
        ]);

        return $mixedResult;
    }

    public function checkAllowedSetThumb ($iContentId = 0)
    {
        return CHECK_ACTION_RESULT_ALLOWED;
    }
    
    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make "true === " checking.
     */
    public function checkAllowedBrowse ()
    {
        $mixedResult = null;
        /**
         * @hooks
         * @hookdef hook-system-check_allowed_browse 'system', 'check_allowed_browse' - hook to override the result of checking whether 'browse' action is allowed or not to currently logged in profile
         * It's equivalent to @ref hook-system-check_allowed_view 
         * except `content_info` parameter in $extra_params is missing
         * @hook @ref hook-system-check_allowed_browse
         */
        bx_alert('system', 'check_allowed_browse', 0, 0, [
            'module' => $this->getName(), 
            'profile_id' => $this->_iProfileId, 
            'override_result' => &$mixedResult
        ]);
        if($mixedResult !== null)
            return $mixedResult;

        return CHECK_ACTION_RESULT_ALLOWED;
    }

    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make strict(===) checking.
     */
    public function checkAllowedView ($aDataEntry, $isPerformAction = false)
    {
        return $this->serviceCheckAllowedViewForProfile ($aDataEntry, $isPerformAction);
    }

    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make strict(===) checking.
     */
    public function checkAllowedViewForProfile ($aDataEntry, $iProfileId, $isPerformAction = false)
    {
        return $this->serviceCheckAllowedViewForProfile ($aDataEntry, $isPerformAction, $iProfileId);
    }

    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make strict(===) checking.
     */
    public function checkAllowedAdd ($isPerformAction = false)
    {
        // check ACL
        $aCheck = checkActionModule($this->_iProfileId, 'create entry', $this->getName(), $isPerformAction);
        if ($aCheck[CHECK_ACTION_RESULT] !== CHECK_ACTION_RESULT_ALLOWED)
            return $aCheck[CHECK_ACTION_MESSAGE];
        return CHECK_ACTION_RESULT_ALLOWED;
    }

    public function serviceCheckAllowedAddInContext($sContextModule)
    {
        $CNF = &$this->_oConfig->CNF;

        if(($sKey = 'OBJECT_PRIVACY_VIEW') && !empty($CNF[$sKey]) && ($oPrivacy = BxDolPrivacy::getObjectInstance($CNF[$sKey])) !== false && !$oPrivacy->isAllowedAddInContext($sContextModule))
            return _t('_sys_txt_access_denied');

        return CHECK_ACTION_RESULT_ALLOWED;   
    }

    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make strict(===) checking.
     */
    public function checkAllowedApprove ($aDataEntry, $isPerformAction = false)
    {
        $CNF = &$this->_oConfig->CNF;
        $sError = '_sys_txt_access_denied';

        if($this->_oConfig->isAutoApproveEnabled())
            return _t($sError);

        if($aDataEntry[$CNF['FIELD_STATUS_ADMIN']] != BX_BASE_MOD_GENERAL_STATUS_PENDING)
            return _t($sError);

        // moderator always have access
        if ($this->_isModerator($isPerformAction))
            return CHECK_ACTION_RESULT_ALLOWED;

        // check for context's admins 
        if (!empty($CNF['FIELD_ALLOW_VIEW_TO']) && (int)$aDataEntry[$CNF['FIELD_ALLOW_VIEW_TO']] < 0) {
            $oProfile = BxDolProfile::getInstance(-(int)$aDataEntry[$CNF['FIELD_ALLOW_VIEW_TO']]);
            if ($oProfile){
                $sModule = $oProfile->getModule();
                $aEntity = BxDolRequest::serviceExists($sModule, 'get_all') ? BxDolService::call($sModule, 'get_all', array(array('type' => 'id', 'id' => $oProfile->getContentId()))) : array();

                $oModule = BxDolModule::getInstance($sModule);

                // check for context's extra roles with rights
                if (method_exists($oModule, 'isAllowedModuleActionByProfile')) {
                    $bResult = $oModule->isAllowedModuleActionByProfile($oProfile->getContentId(), $this->getName(), 'edit_any');
                    if ($bResult !== NULL) return $bResult;
                }

                // if allowed edit a group then allowed to edit anything inside its context
                if(isset($aEntity) && $oModule->checkAllowedEdit($aEntity) === CHECK_ACTION_RESULT_ALLOWED){
                    return CHECK_ACTION_RESULT_ALLOWED;
                }
            }
        }

        return _t($sError);
    }

    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make strict(===) checking.
     */
    public function checkAllowedEdit ($aDataEntry, $isPerformAction = false)
    {
        // moderator and owner always have access
        if ($this->isEntryAuthor($aDataEntry, $this->_iProfileId) || $this->_isModerator($isPerformAction))
            return CHECK_ACTION_RESULT_ALLOWED;

        // check for context's admins 
        if (!empty($this->_oConfig->CNF['FIELD_ALLOW_VIEW_TO']) && (int)$aDataEntry[$this->_oConfig->CNF['FIELD_ALLOW_VIEW_TO']] < 0) {
            $oProfile = BxDolProfile::getInstance(-(int)$aDataEntry[$this->_oConfig->CNF['FIELD_ALLOW_VIEW_TO']]);
            if ($oProfile){
                $sModule = $oProfile->getModule();
                $aEntity = BxDolRequest::serviceExists($sModule, 'get_all') ? BxDolService::call($sModule, 'get_all', array(array('type' => 'id', 'id' => $oProfile->getContentId()))) : array();

                $oModule = BxDolModule::getInstance($sModule);

                // check for context's extra roles with rights
                if (method_exists($oModule, 'isAllowedModuleActionByProfile')) {
                    $bResult = $oModule->isAllowedModuleActionByProfile($oProfile->getContentId(), $this->getName(), 'edit_any');
                    if ($bResult !== NULL) return $bResult;
                }

                // if allowed edit a group then allowed to edit anything inside its context
                if(isset($aEntity) && $oModule->checkAllowedEdit($aEntity) === CHECK_ACTION_RESULT_ALLOWED){
                    return CHECK_ACTION_RESULT_ALLOWED;
                }
            }
        }

        return _t('_sys_txt_access_denied');
    }

    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make strict(===) checking.
     */
    public function checkAllowedDelete (&$aDataEntry, $isPerformAction = false)
    {
        // moderator always has access
        if ($this->_isAdministrator($isPerformAction))
            return CHECK_ACTION_RESULT_ALLOWED;

        // check ACL
        $aCheck = checkActionModule($this->_iProfileId, 'delete entry', $this->getName(), $isPerformAction);
        if ($this->isEntryAuthor($aDataEntry, $this->_iProfileId) && $aCheck[CHECK_ACTION_RESULT] === CHECK_ACTION_RESULT_ALLOWED)
            return CHECK_ACTION_RESULT_ALLOWED;

        // check for context's admins 
        if (isset($this->_oConfig->CNF['FIELD_ALLOW_VIEW_TO']) && (int)$aDataEntry[$this->_oConfig->CNF['FIELD_ALLOW_VIEW_TO']] < 0){
            $oProfile = BxDolProfile::getInstance(-(int)$aDataEntry[$this->_oConfig->CNF['FIELD_ALLOW_VIEW_TO']]);
            if ($oProfile){
                $sModule = $oProfile->getModule();
                $aEntity = BxDolRequest::serviceExists($sModule, 'get_all') ? BxDolService::call($sModule, 'get_all', array(array('type' => 'id', 'id' => $oProfile->getContentId()))) : array();

                $oModule = BxDolModule::getInstance($sModule);

                // check for context's extra roles with rights
                if (method_exists($oModule, 'isAllowedModuleActionByProfile')) {
                    $bResult = $oModule->isAllowedModuleActionByProfile($oProfile->getContentId(), $this->getName(), 'delete_any');
                    if ($bResult !== NULL) return $bResult;
                }

                // if allowed delete a group then allowed to delete anything inside its context
                if(isset($aEntity) && $oModule->checkAllowedDelete($aEntity) === CHECK_ACTION_RESULT_ALLOWED){
                    return CHECK_ACTION_RESULT_ALLOWED;
                }
            }
        }

        return _t('_sys_txt_access_denied');
    }

    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make strict(===) checking.
     */
    public function checkAllowedSetMembership (&$aDataEntry, $isPerformAction = false)
    {
        // admin always has access
        if (isAdmin())
            return CHECK_ACTION_RESULT_ALLOWED;

        // check ACL
        $aCheck = checkActionModule($this->_iProfileId, 'set acl level', 'system', $isPerformAction);
        if ($aCheck[CHECK_ACTION_RESULT] !== CHECK_ACTION_RESULT_ALLOWED)
            return $aCheck[CHECK_ACTION_MESSAGE];

        return CHECK_ACTION_RESULT_ALLOWED;
    }

    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make strict(===) checking.
     */
    public function checkAllowedEditAnyEntry ($isPerformAction = false)
    {
    	return $this->checkAllowedEditAnyEntryForProfile($isPerformAction, $this->_iProfileId);
    }
    
    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make strict(===) checking.
     */
    public function checkAllowedDeleteAnyEntry ($isPerformAction = false)
    {
    	return $this->checkAllowedDeleteAnyEntryForProfile($isPerformAction, $this->_iProfileId);
    }
    
    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make strict(===) checking.
     */
    public function checkAllowedEditAnyEntryForProfile ($isPerformAction = false, $iProfileId = false)
    {
        if(!$iProfileId)
            $iProfileId = $this->_iProfileId;

    	$aCheck = checkActionModule($iProfileId, MEMBERSHIP_ACTION_EDIT_ANY_ENTRY, $this->getName(), $isPerformAction);
    	if($aCheck[CHECK_ACTION_RESULT] === CHECK_ACTION_RESULT_ALLOWED)
    		return CHECK_ACTION_RESULT_ALLOWED;

    	return _t('_sys_txt_access_denied');
    }

    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make strict(===) checking.
     */
    public function checkAllowedDeleteAnyEntryForProfile ($isPerformAction = false, $iProfileId = false)
    {
        if(!$iProfileId)
            $iProfileId = $this->_iProfileId;

    	$aCheck = checkActionModule($iProfileId, MEMBERSHIP_ACTION_DELETE_ANY_ENTRY, $this->getName(), $isPerformAction);
    	if($aCheck[CHECK_ACTION_RESULT] === CHECK_ACTION_RESULT_ALLOWED)
    		return CHECK_ACTION_RESULT_ALLOWED;

    	return _t('_sys_txt_access_denied');
    }

    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make "true === " checking.
     */
    public function checkAllowedCommentsView ($aContentInfo, $isPerformAction = false)
    {
        return $this->checkAllowedView ($aContentInfo, $isPerformAction);
    }

    /**
     * @return CHECK_ACTION_RESULT_ALLOWED if access is granted or error message if access is forbidden. So make sure to make "true === " checking.
     */
    public function checkAllowedCommentsPost ($aContentInfo, $isPerformAction = false)
    {
        return $this->checkAllowedView ($aContentInfo, $isPerformAction);
    }

    protected function _serviceCheckAllowedViewForProfile ($aDataEntry, $isPerformAction, $iProfileId)
    {
        $CNF = &$this->_oConfig->CNF;

        if(!$iProfileId)
            $iProfileId = $this->_iProfileId;

        if(empty($aDataEntry) || !is_array($aDataEntry))
            return _t('_sys_txt_not_found');

        if(!empty($iProfileId) && abs($aDataEntry[$CNF['FIELD_AUTHOR']]) == (int)$iProfileId)
            return CHECK_ACTION_RESULT_ALLOWED;

        // below goes mem cached response for current page load

        $sCacheKey = $this->getName() . ':' . __CLASS__ . ':_checkAllowedViewForProfile:' . $aDataEntry[$CNF['FIELD_ID']] . ':' . $iProfileId;        
        $mixedRet = bx_mem_cache_get($sCacheKey);
        if (null !== $mixedRet)
            return $mixedRet;

        $mixedRet = CHECK_ACTION_RESULT_ALLOWED;

        if (empty($iProfileId) || !$this->_isModeratorForProfile($isPerformAction, $iProfileId)) { // skip checking if moderator
            $aCheck = checkActionModule($iProfileId, 'view entry', $this->getName(), $isPerformAction); 
            if ($aCheck[CHECK_ACTION_RESULT] !== CHECK_ACTION_RESULT_ALLOWED) { // check ACL
                $mixedRet = $aCheck[CHECK_ACTION_MESSAGE];
            } elseif(!empty($CNF['OBJECT_PRIVACY_VIEW'])) { // check privacy
                $oPrivacy = BxDolPrivacy::getObjectInstance($CNF['OBJECT_PRIVACY_VIEW']);
                if ($oPrivacy && !$oPrivacy->check($aDataEntry[$CNF['FIELD_ID']], $iProfileId))
                    $mixedRet = _t('_sys_access_denied_to_private_content');
            }
        }

        bx_mem_cache_set($sCacheKey, $mixedRet);

        return $mixedRet;
    }
    
    public function getObjectBrowse ($sMode, $aParams = false, $sClass = 'SearchResult')
    {
        $oObject = null;

        bx_alert('system', 'get_object_browse', 0, 0, [
            'module' => $this->getName(),
            'mode' => &$sMode,
            'params' => &$aParams,
            'class' => &$sClass,
            'object' => &$oObject,

            'mode_ref' => &$sMode,
            'params_ref' => &$aParams,
            'class_ref' => &$sClass,
            'object_ref' => &$oObject
        ]);

        if($oObject !== null) 
            return $oObject;

        if($aParams === false || !is_array($aParams))
            $aParams = [];
        $aParams['class_search_result'] ??= $sClass;

        bx_import($sClass, $this->_aModule);
        $sClass = $this->_aModule['class_prefix'] . $sClass;
        return new $sClass($sMode, $aParams);
    }

    public function _serviceBrowse ($sMode, $aParams = false, $iDesignBox = BX_DB_PADDING_DEF, $bDisplayEmptyMsg = false, $bAjaxPaginate = true, $sClassSearchResult = 'SearchResult')
    {
        if(CHECK_ACTION_RESULT_ALLOWED !== ($sMsg = $this->checkAllowedBrowse()))
            return $this->_bIsApi ? [bx_api_get_msg($sMsg)] : MsgBox($sMsg);

        $o = $this->getObjectBrowse($sMode, $aParams, $sClassSearchResult);
        $o->setDesignBoxTemplateId($iDesignBox);
        $o->setDisplayEmptyMsg($bDisplayEmptyMsg);
        $o->setAjaxPaginate($bAjaxPaginate);
        $o->setUnitParams(array('context' => $sMode));
        if(isset($aParams['condition']) && is_array($aParams['condition']))
            $o->setCustomCurrentCondition($aParams['condition']);

        if($o->isError)
            return '';

        if($this->_bIsApi) {
            $aBlock = BxDolPage::getBlockProcessing();

            $sContentType = 'browse';
            if(($aConfigApi = $aBlock['config_api'] ?? false) && is_array($aConfigApi))
                $sContentType = $aConfigApi['content_type'] ?? $sContentType;

            $bBrowseSimple = $sContentType == 'browse_simple';

            $a = $o->processingAPI($bBrowseSimple);
            if($a && is_array($a))
                $a['hide_empty_msg'] = !(bool)$bDisplayEmptyMsg;

            return !$bBrowseSimple || $a['data'] ? [bx_api_get_block($sContentType, $a)] : [];
        }
        else
            return ($s = $o->processing()) ? $s : '';
    }

    /**
     * Shows a list of profiles.
     */
    protected function _serviceBrowseQuick($aProfiles, $iStart = 0, $iLimit = 4, $aAdditionalParams = [])
    {
        return bx_srv('system', 'browse_quick', [$aProfiles, $iStart, $iLimit, ['additional_params' => $aAdditionalParams]], 'TemplServiceProfiles');
    }

    // ====== COMMON METHODS
    public function isPollPerformed($iObjectId, $iAuthorId = 0, $iAuthorIp = 0)
    {
        if(empty($iAuthorId)) {
            $iAuthorId = bx_get_logged_profile_id();
            $iAuthorIp = bx_get_ip_hash(getVisitorIP());
        }

        return $this->_oDb->isPollPerformed($iObjectId, $iAuthorId, $iAuthorIp);
    }

    public function getPollPerformedValue($iObjectId, $iAuthorId = 0)
    {
        if(empty($iAuthorId))
            $iAuthorId = bx_get_logged_profile_id();

        return $this->_oDb->getPollPerformedValue($iObjectId, $iAuthorId);
    }

    public function onPublished($iContentId)
    {
        $CNF = &$this->_oConfig->CNF;

        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(!$aContentInfo)
            return;

        /*
         * Process metas.
         * Note. It's essential to process metas a the very end, 
         * because all data related to an entry should be already
         * processed and are ready to be passed to alert. 
         */
        $this->processMetasAdd($iContentId);

        $this->alertAfterAdd($aContentInfo);
    }

    public function onFailed($iContentId)
    {
        $CNF = &$this->_oConfig->CNF;
        
        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(!$aContentInfo)
            return;

        /**
         * @hooks
         * @hookdef hook-bx_base_general-failed '{module_name}', 'failed' - hook after content creation when publishing was failed
         * - $unit_name - module name
         * - $action - equals `failed`
         * - $object_id - content id
         * - $sender_id - content author profile id
         * - $extra_params - array of additional params with the following array keys:
         *      - `object_author_id` - [int] content author profile id
         * @hook @ref hook-bx_base_general-failed
         */
        bx_alert($this->getName(), 'failed', $iContentId, $aContentInfo[$CNF['FIELD_AUTHOR']], [
            'object_author_id' => $aContentInfo[$CNF['FIELD_AUTHOR']]
        ]);
    }

    public function onApprove($mixedContent)
    {
        $CNF = &$this->_oConfig->CNF;

        if(!is_array($mixedContent))
            $mixedContent = $this->_oDb->getContentInfoById((int)$mixedContent);

        $this->alertAfterApprove($mixedContent);

        $this->onPublished($mixedContent[$CNF['FIELD_ID']]);
    }

    public function onUpdateImage($iContentId, $sFiledName, $sFiledValue, $iProfileId = 0) {}

    public function alertAfterAdd($aContentInfo) {}
    
    public function alertAfterEdit($aContentInfo) {}

    public function alertAfterApprove($aContentInfo)
    {
        $CNF = &$this->_oConfig->CNF;

        $iId = (int)$aContentInfo[$CNF['FIELD_ID']];

        $sModule = $this->getName();
        $aParams = $this->_alertParams($aContentInfo);

        /**
         * @hooks
         * @hookdef hook-bx_base_general-approved '{module_name}', 'approved' - hook when module content has been approved
         * - $unit_name - module name
         * - $action - equals `approved` 
         * - $object_id - content id 
         * - $sender_id - not used, always `false`
         * - $extra_params - array of additional params with the following array keys:
         *      - `source` - [string] uniq string for particular content in the following format `{module}_{content}`
         *      - `object_author_id` - [int] content author profile id
         * @hook @ref hook-bx_base_general-approved
         */
        bx_alert($sModule, 'approved', $iId, false, $aParams);
    }

    /**
     * Get array of params to be passed in Add/Edit Alert.
     */
    protected function _alertParams($aContentInfo)
    {
        $CNF = &$this->_oConfig->CNF;

        $sModule = $this->_oConfig->getName();
        $iAuthorId = (int)$aContentInfo[$CNF['FIELD_AUTHOR']];
        $iContentId = (int)$aContentInfo[$CNF['FIELD_ID']];

        return [
            'source' => $sModule . '_' . $iContentId,
            'source_mac' => $sModule . '_' . $iAuthorId . '_' . $iContentId,

            'object_author_id' => $iAuthorId
        ];
    }

    public function processMetasAdd($iContentId)
    {        
        return $this->processMetas('add', $iContentId);
    }

    public function processMetasEdit($iContentId, $oForm)
    {
        return $this->processMetas('edit', $iContentId, $oForm);
    }

    public function processMetas($aAction, $iContentId, $oForm = false)
    {
        $CNF = &$this->_oConfig->CNF;

        if(empty($CNF['OBJECT_METATAGS']))
            return false;

        $aContentInfo = $this->_oDb->getContentInfoById($iContentId, true);

        $bFldStatus = !empty($CNF['FIELD_STATUS']);
        $bFldStatusAdmin = !empty($CNF['FIELD_STATUS_ADMIN']);
        $bContentInfo = $aContentInfo && (!$bFldStatus || ($bFldStatus && $aContentInfo[$CNF['FIELD_STATUS']] == 'active')) && (!$bFldStatusAdmin || ($bFldStatusAdmin && $aContentInfo[$CNF['FIELD_STATUS_ADMIN']] == 'active'));
        if(!$bContentInfo)
            return false;

        $oMetatags = BxDolMetatags::getObjectInstance($CNF['OBJECT_METATAGS']);
        $oMetatags->metaAddAuto($iContentId, $aContentInfo, $CNF, $CNF['OBJECT_FORM_ENTRY_DISPLAY_' . strtoupper($aAction)]);

        if($oMetatags->locationsIsEnabled() && ($sKey = 'FIELD_LOCATION') && !empty($CNF[$sKey]) && !empty($aContentInfo[$CNF[$sKey]])) {
            $aLocation = unserialize($aContentInfo[$CNF[$sKey]]);
            if(!empty($aLocation) && is_array($aLocation))
                call_user_func_array(array($oMetatags, 'locationsAdd'), array_merge(array($iContentId), array_values($aLocation)));
        }

        if($oMetatags->keywordsIsEnabled() && ($sKey = 'FIELD_LABELS') && !empty($CNF[$sKey]) && !empty($aContentInfo[$CNF[$sKey]])) {
            $aLabels = unserialize($aContentInfo[$CNF[$sKey]]);
            if(!empty($aLabels) && is_array($aLabels))
                foreach ($aLabels as $sLabel) {
                    if(!preg_match("/(\pL[\pL\pN_]+)/u", $sLabel))
                        continue;

                    $oMetatags->keywordsAddOne($iContentId, $sLabel, false);
                }
        }

        return true;
    }

    public function addAttachLink($aValues, $sDisplay = false)
    {
        $CNF = &$this->_oConfig->CNF;

        if(!$sDisplay)
            $sDisplay = $CNF['OBJECT_FORM_ATTACH_LINK_DISPLAY_ADD'];

        $oForm = BxDolForm::getObjectInstance($CNF['OBJECT_FORM_ATTACH_LINK'], $sDisplay, $this->_oTemplate);
        if(!$oForm)
            return array('message' => '_sys_txt_error_occured');

        $oForm->aFormAttrs['method'] = BX_DOL_FORM_METHOD_SPECIFIC;
        $oForm->aParams['csrf']['disable'] = true;
        if(!empty($oForm->aParams['db']['submit_name'])) {
            $sSubmitName = $oForm->aParams['db']['submit_name'];
            if(!isset($oForm->aInputs[$sSubmitName])) {
                if(isset($oForm->aInputs[$CNF['FIELD_ATTACH_LINK_CONTROLS']]))
                    foreach($oForm->aInputs[$CNF['FIELD_ATTACH_LINK_CONTROLS']] as $mixedIndex => $aInput) {
                        if(!is_numeric($mixedIndex) || empty($aInput['name']) || $aInput['name'] != $sSubmitName)
                            continue;
    
                        $aValues[$sSubmitName] = $aInput['value'];
                    }
            }
            else            
                $aValues[$sSubmitName] = $oForm->aInputs[$sSubmitName]['value'];
        }

        $oForm->aInputs['url']['checker']['params']['preg'] = $this->_oConfig->getPregPattern('url');

        $oForm->initChecker(array(), $aValues);
        if(!$oForm->isSubmittedAndValid())
            return array('message' => '_sys_txt_error_occured');

        return $this->_addLink($oForm);
    }

    public function getFormAttachLink($iContentId = 0)
    {
        $CNF = &$this->_oConfig->CNF;

        $oForm = BxDolForm::getObjectInstance($CNF['OBJECT_FORM_ATTACH_LINK'], $CNF['OBJECT_FORM_ATTACH_LINK_DISPLAY_ADD'], $this->_oTemplate);
        $oForm->aFormAttrs['action'] = BX_DOL_URL_ROOT . $this->_oConfig->getBaseUri() . 'submit_attach_link_form/';
        $oForm->aInputs[$CNF['FIELD_ATTACH_LINK_CONTENT_ID']]['value'] = $iContentId;
        $oForm->aInputs[$CNF['FIELD_ATTACH_LINK_URL']]['checker']['params']['preg'] = $this->_oConfig->getPregPattern('url');

        $oForm->initChecker();
        if($oForm->isSubmittedAndValid())
            return $this->_addLink($oForm);

        return ['form' => $oForm->getCode(), 'form_id' => $oForm->id];
    }

    protected function _addLink(&$oForm)
    {
        $CNF = &$this->_oConfig->CNF;

        $iUserId = $this->getUserId();

        $iContentId = (int)$oForm->getCleanValue($CNF['FIELD_ATTACH_LINK_CONTENT_ID']);
        $sLink = rtrim($oForm->getCleanValue('url'), '/');
        $sHost = parse_url($sLink, PHP_URL_HOST);
        if($sHost && is_private_ip(gethostbyname($sHost)))
            return ['message' => _t('_sys_txt_error_occured')];

        $aMatches = [];
        preg_match($this->_oConfig->getPregPattern('url'), $sLink, $aMatches);
        $sLink = (empty($aMatches[2]) ? 'http://' : '') . $aMatches[0];

        $aSiteInfo = bx_get_site_info($sLink, [
            'thumbnailUrl' => ['tag' => 'link', 'content_attr' => 'href'],
            'OGImage' => ['name_attr' => 'property', 'name' => 'og:image'],
        ]);

        $sTitle = !empty($aSiteInfo['title']) ? $aSiteInfo['title'] : $sHost;
        $sDescription = !empty($aSiteInfo['description']) ? $aSiteInfo['description'] : '';

        $sMediaUrl = '';
        if(!empty($aSiteInfo['thumbnailUrl']))
            $sMediaUrl = $aSiteInfo['thumbnailUrl'];
        else if(!empty($aSiteInfo['OGImage']))
            $sMediaUrl = $aSiteInfo['OGImage'];

        $iMediaId = 0;
        $oStorage = null;
        if(!empty($sMediaUrl)) {
            $oStorage = BxDolStorage::getObjectInstance($CNF['OBJECT_STORAGE_PHOTOS']);

            $iMediaId = $oStorage->storeFileFromUrl($sMediaUrl, true, $iUserId);
        }

        $iId = (int)$oForm->insert(['profile_id' => $iUserId, 'media_id' => $iMediaId, 'url' => $sLink, 'title' => $sTitle, 'text' => $sDescription, 'added' => time()]);
        if(!empty($iId)) {
            if(!empty($oStorage) && !empty($iMediaId))
                $oStorage->afterUploadCleanup($iMediaId, $iUserId);

            return [
                'id' => $iId, 
                $CNF['FIELD_ATTACH_LINK_CONTENT_ID'] => $iContentId, 
                'url' => $sLink,
                'item' => $this->_oTemplate->getAttachLinkItem($iUserId, $iId)
            ];
        }

        return ['message' => _t('_bx_timeline_txt_err_cannot_perform_action')];
    }

    public function getEntryImageData($aContentInfo, $sField = 'FIELD_THUMB', $aTranscoders = array())
    {
        if(empty($aTranscoders))
            $aTranscoders = array('OBJECT_TRANSCODER_COVER', 'OBJECT_IMAGES_TRANSCODER_COVER', 'OBJECT_IMAGES_TRANSCODER_GALLERY');

        $CNF = &$this->_oConfig->CNF;
        if(empty($CNF[$sField]) || empty($aContentInfo[$CNF[$sField]]) || empty($CNF['OBJECT_STORAGE']))
            return false;

        $iId = (int)$aContentInfo[$CNF[$sField]];
        $aFile = BxDolStorage::getObjectInstance($CNF['OBJECT_STORAGE'])->getFile($iId);
        if(!empty($aFile) && is_array($aFile) && strpos($aFile['mime_type'], 'svg') !== false)
            return array('id' => $iId, 'object' => $CNF['OBJECT_STORAGE']);

        foreach($aTranscoders as $sTranscoder)
            if(!empty($CNF[$sTranscoder]))
                return array('id' => $iId, 'transcoder' => $CNF[$sTranscoder]);

        return array('id' => $iId, 'object' => $CNF['OBJECT_STORAGE']);
    }

    public function getEntryAllActions ($mixedContent = false, $aParams = [])
    {
        $CNF = &$this->_oConfig->CNF;

        if(!empty($mixedContent)) {
            if(!is_array($mixedContent))
                $mixedContent = array((int)$mixedContent, (method_exists($this->_oDb, 'getContentInfoById')) ? $this->_oDb->getContentInfoById((int)$mixedContent) : array());
        }
        else {
            $mixedContent = $this->_getContent();
            if($mixedContent === false)
                return false;
        }

        list($iContentId, $aContentInfo) = $mixedContent;

        $sObjectMenu = !empty($aParams['object_menu']) ? $aParams['object_menu'] : '';
        if(empty($sObjectMenu) && !empty($CNF['OBJECT_MENU_ACTIONS_VIEW_ENTRY_ALL']))
            $sObjectMenu = $CNF['OBJECT_MENU_ACTIONS_VIEW_ENTRY_ALL'];

        if(empty($sObjectMenu))
            return false;

        $sEntryTitle = !empty($aParams['entry_title']) ? $aParams['entry_title'] : '';
        if(empty($sEntryTitle) && !empty($CNF['FIELD_TITLE']) && !empty($aContentInfo[$CNF['FIELD_TITLE']]))
            $sEntryTitle = $aContentInfo[$CNF['FIELD_TITLE']];

        $sEntryUrl = !empty($aParams['entry_url']) ? $aParams['entry_url'] : '';
        if(empty($sEntryUrl) && !empty($CNF['URI_VIEW_ENTRY']))
            $sEntryUrl = bx_absolute_url(BxDolPermalinks::getInstance()->permalink('page.php?i=' . $CNF['URI_VIEW_ENTRY'] . '&id=' . $iContentId));

        $iEntryThumb = !empty($aParams['entry_thumb']) ? (int)$aParams['entry_thumb'] : 0;
        if(empty($iEntryThumb) && !empty($CNF['FIELD_THUMB']) && !empty($aContentInfo[$CNF['FIELD_THUMB']]))
            $iEntryThumb = (int)$aContentInfo[$CNF['FIELD_THUMB']];

        $sObjectStorage = !empty($aParams['object_storage']) ? $aParams['object_storage'] : false;
        if(empty($sObjectStorage) && !empty($CNF['OBJECT_STORAGE']))
            $sObjectStorage = $CNF['OBJECT_STORAGE'];

        $sObjectTranscoder = !empty($aParams['object_transcoder']) ? $aParams['object_transcoder'] : false;

        $aMarkers = [
            'id' => $iContentId,
            'module' => $this->_oConfig->getName(),
            'title' => !empty($sEntryTitle) ? $sEntryTitle : '',
            'url' => !empty($sEntryUrl) ? $sEntryUrl : '',
            'img_url' => ''
        ];

        if(!empty($iEntryThumb)) {
            if(!empty($sObjectTranscoder))
                $o = BxDolTranscoder::getObjectInstance($sObjectTranscoder);
            else if(!empty($sObjectStorage))
                $o = BxDolStorage::getObjectInstance($sObjectStorage);

            $sImageUrl = $o ? $o->getFileUrlById($iEntryThumb) : '';
            if(!empty($sImageUrl))
                $aMarkers['img_url'] = $sImageUrl;
        }

        $oActions = BxDolMenu::getObjectInstance($sObjectMenu, $this->_oTemplate);
        if(!$oActions)
            return false;

        $oActions->setContentId($iContentId);
        $oActions->addMarkers($aMarkers);

        return $oActions->{bx_is_api() ? 'getCodeAPI' : 'getCode'}();
    }

    public function setProfileId($i)
    {
        $iOldProfileId = $this->_iProfileId;
        $this->_iProfileId = $i;
        return $iOldProfileId;
    }
    
    public function getProfileId()
    {
        return $this->_iProfileId;
    }

    public function getProfileInfo($iUserId = false)
    {
        $oProfile = $this->getObjectUser($iUserId);

        $oAccount = null;
        if($oProfile && !($oProfile instanceof BxDolProfileUndefined) && !($oProfile instanceof BxDolProfileAnonymous))
            $oAccount = $oProfile->getAccountObject();
        $bAccount = !empty($oAccount);

        if(!$bAccount)
            $oProfile = BxDolProfileUndefined::getInstance();

        return array(
            'id' => $oProfile->id(),
            'name' => $oProfile->getDisplayName(),
            'email' => $bAccount ? $oAccount->getEmail() : '',
            'link' => $oProfile->getUrl(),
            'icon' => $oProfile->getIcon(),
            'thumb' => $oProfile->getThumb(),
            'avatar' => $oProfile->getAvatar(),
            'active' => $oProfile->isActive(),
        );
    }

    public function getObjectUser($iUserId = false)
    {
    	bx_import('BxDolProfile');
        return BxDolProfile::getInstanceMagic($iUserId);
    }

    public function getObjectFavorite($sSystem = '', $iId = 0)
    {
        $CNF = &$this->_oConfig->CNF;
        if(empty($sSystem) && !empty($CNF['OBJECT_FAVORITES']))
            $sSystem = $CNF['OBJECT_FAVORITES'];

        if(empty($sSystem))
            return false;

        $oFavorite = BxDolFavorite::getObjectInstance($sSystem, $iId, true, $this->_oTemplate);
        if(!$oFavorite || !$oFavorite->isEnabled())
            return false;

        return $oFavorite;
    }

	public function getUserId()
    {
        return isLogged() ? bx_get_logged_profile_id() : 0;
    }

    public function getUserIp()
    {
        return getVisitorIP();
    }
    
    public function getUserInfo($iUserId = 0)
    {
        $oProfile = BxDolProfile::getInstanceMagic($iUserId);

        return array(
            $oProfile->getDisplayName(),
            $oProfile->getUrl(),
            $oProfile->getThumb(),
            $oProfile->getUnit(),
            $oProfile->getUnit(0, array('template' => 'unit_wo_info'))
        );
    }
    
    public function getUserInfoWithBadges($iUserId = 0)
    {
        $oProfile = BxDolProfile::getInstanceMagic($iUserId);

        return array(
            $oProfile->getDisplayName(),
            $oProfile->getUrl(),
            $oProfile->getThumb(),
            $oProfile->getUnit(),
            $oProfile->getUnit(0, array('template' => 'unit_wo_info')),
            $oProfile->getBadges()
        );
    }

    public function isMenuItemVisible($sObject, &$aItem, &$aContentInfo)
    {
        $CNF = &$this->_oConfig->CNF;

        // default visible settings
        if(!BxDolAcl::getInstance()->isMemberLevelInSet($aItem['visible_for_levels']))
            return false;

        if (!empty($aItem['visibility_custom'])) {
            $oMenu = BxDolMenu::getObjectInstance($sObject);
            if ($oMenu && !BxDolService::callSerialized($aItem['visibility_custom'], $oMenu->getMarkers()))
                return false;
        }
        
        // get custom function name to check menu item visibility
        $sFuncCheckAccess = false;
        if(isset($CNF['MENU_ITEM_TO_METHOD'][$sObject][$aItem['name']]))
            $sFuncCheckAccess = $CNF['MENU_ITEM_TO_METHOD'][$sObject][$aItem['name']];

        // check custom visibility settings defined in module config class
        if(!isset($aContentInfo))
            $aContentInfo = array();

        if($sFuncCheckAccess && CHECK_ACTION_RESULT_ALLOWED !== call_user_func_array(array($this, $sFuncCheckAccess), array(&$aContentInfo)))
            return false;

        return true;
    }

    public function getModerators($mixedContentInfo)
    {
        $CNF = &$this->_oConfig->CNF;

        $sModule = $this->_oConfig->getName();

        if(!is_array($mixedContentInfo))
            $mixedContentInfo = $this->_oDb->getContentInfoById((int)$mixedContentInfo);

        $aModerators = [];
        if(getParam('sys_notify_to_approve_by_role') == 'on' && bx_srv('system', 'is_module_content', [$sModule]) && ($sField = 'FIELD_ALLOW_VIEW_TO') && !empty($CNF[$sField]) && (int)$mixedContentInfo[$CNF[$sField]] < 0) {
            $iContextProfileId = abs((int)$mixedContentInfo[$CNF['FIELD_ALLOW_VIEW_TO']]);
            $oContextProfile = BxDolProfile::getInstance($iContextProfileId);

            $aModerators = bx_srv($oContextProfile->getModule(), 'get_admins_to_manage_content', [$iContextProfileId]);
        }

        if(empty($aModerators))
            $aModerators = BxDolAclQuery::getInstance()->getProfilesByAction([
                MEMBERSHIP_ACTION_EDIT_ANY_ENTRY, 
                MEMBERSHIP_ACTION_DELETE_ANY_ENTRY
            ], [
                'module' => $sModule, 
                'ids_only' => true
            ]);

        return $aModerators;
    }

    public function _isModerator ($isPerformAction = false)
    {
        return $this->_isModeratorForProfile($isPerformAction, $this->_iProfileId);
    }

    public function _isModeratorForProfile($isPerformAction = false, $iProfileId = false)
    {
        return CHECK_ACTION_RESULT_ALLOWED === $this->checkAllowedEditAnyEntryForProfile ($isPerformAction, $iProfileId);
    }

    public function _isAdministrator ($isPerformAction = false)
    {
        return $this->_isAdministratorForProfile($isPerformAction, $this->_iProfileId);
    }

    public function _isAdministratorForProfile($isPerformAction = false, $iProfileId = false)
    {
        return CHECK_ACTION_RESULT_ALLOWED === $this->checkAllowedDeleteAnyEntryForProfile ($isPerformAction, $iProfileId);
    }

    public function _prepareAuditParams($aContentInfo, $bIsSaveData = true, $aOverrideAuditParams  = array())
    {
        $CNF = &$this->_oConfig->CNF;
        
        $iContextId = isset($CNF['FIELD_ALLOW_VIEW_TO']) && (!empty($aContentInfo[$CNF['FIELD_ALLOW_VIEW_TO']]) && (int)$aContentInfo[$CNF['FIELD_ALLOW_VIEW_TO']] < 0) ? - $aContentInfo[$CNF['FIELD_ALLOW_VIEW_TO']] : 0;
        
        $AuditParams = array(
            'content_title' => (isset($CNF['FIELD_TITLE']) && isset($aContentInfo[$CNF['FIELD_TITLE']])) ? $aContentInfo[$CNF['FIELD_TITLE']] : '',
            'context_profile_id' => $iContextId,
            'content_info_object' =>  isset($CNF['OBJECT_CONTENT_INFO']) ? $CNF['OBJECT_CONTENT_INFO'] : '',
            'data' => ($bIsSaveData ? $aContentInfo : array())
        );
        if ($iContextId > 0)
            $AuditParams['context_profile_title'] = BxDolProfile::getInstance($iContextId)->getDisplayName();
        
        $AuditParams = array_merge($AuditParams, $aOverrideAuditParams);
        
        return $AuditParams;
    }
    
    public function _getFavoriteListUrl ($iListId, $iProfileId)
    {
        $CNF = &$this->_oConfig->CNF;
        return bx_absolute_url(BxDolPermalinks::getInstance()->permalink('page.php?i=' . $CNF['URI_FAVORITES_LIST'] . '&profile_id=' . $iProfileId . '&list_id=' . $iListId));
    }

    public function getDataAPI($aData, $aParams = [])
    {
        $aDataApi = $this->decodeDataAPI($aData, $aParams);

        $sModule = $this->getName();
        $aExtras = [
            'module' => $sModule,
            'data' => $aData,
            'params' => $aParams,
            'data_api' => &$aDataApi,
            'data_api_ref' => &$aDataApi,
        ];

        /**
         * @hooks
         * @hookdef hook-system-decode_data_api 'system', 'decode_data_api' - hook to override content data prepared for sending in API response
         * - $unit_name - equals `system`
         * - $action - equals `decode_data_api`
         * - $object_id - not used
         * - $sender_id - not used
         * - $extra_params - array of additional params with the following array keys:
         *      - `module` - [string] module name
         *      - `data` - [array] content info array as key&value pairs
         *      - `params` - [array] params array as key&value pairs
         *      - `data_api` - [array] by ref, content data prepared for sending in API response, can be overridden in hook processing
         * @hook @ref hook-system-decode_data_api
         */
        bx_alert('system', 'decode_data_api', 0, 0, $aExtras);

        /**
         * @hooks
         * @hookdef hook-bx_base_general-decode_data_api '{module_name}', 'decode_data_api' - hook to override content data prepared for sending in API response
         * It's equivalent to @ref hook-system-decode_data_api
         * @hook @ref hook-bx_base_general-decode_data_api
         */
        bx_alert($sModule, 'decode_data_api', 0, 0, $aExtras);

        return $aDataApi;
    }

    public function decodeDataAPI($aData, $aParams = [])
    {
        return $aData;
    }

    protected function decodeDataAPICommonFields(&$aResult, $aData, $aParams) 
    {
        $CNF = &$this->_oConfig->CNF;

        if (!empty($CNF['FIELD_LABELS'])) {
            $aResult[$CNF['FIELD_LABELS']] = empty($aData[$CNF['FIELD_LABELS']]) ? [] : unserialize($aData[$CNF['FIELD_LABELS']]);
        }

        if (!empty($CNF['FIELD_LOCATION'])) {
            $aResult[$CNF['FIELD_LOCATION']] = empty($aData[$CNF['FIELD_LOCATION']]) ? [] : unserialize($aData[$CNF['FIELD_LOCATION']]);
        }
    }

    // ====== PROTECTED METHODS

    protected function _serviceEntityForm ($sFormMethod, $iContentId = 0, $sDisplay = false, $sCheckFunction = false, $bErrorMsg = true)
    {
        $iContentId = $this->_getContent($iContentId, false);
        if($iContentId === false)
            return false;

        $oFormsHelper = $this->getFormsHelper();
        return $oFormsHelper->$sFormMethod((int)$iContentId, $sDisplay, $sCheckFunction, $bErrorMsg);
    }

    protected function _serviceTemplateFunc ($sFunc, $iContentId, $sFuncGetContent = 'getContentInfoById')
    {
        return $this->_serviceTemplateFuncEx($sFunc, $iContentId, array('function_get_content' => $sFuncGetContent));
    }
    
    protected function _serviceTemplateFuncEx ($sFunc, $iContentId, $aParams = array())
    {
        if (!isset($aParams['function_get_content']))
            $aParams['function_get_content'] = 'getContentInfoById';
        
        $mixedContent = $this->_getContent($iContentId, $aParams['function_get_content']);
        if($mixedContent === false)
            return false;

        list($iContentId, $aContentInfo) = $mixedContent;

        unset($aParams['function_get_content']);
        
        if (!empty($aParams))
            return $this->_oTemplate->$sFunc($aContentInfo, $aParams);
        else
            return $this->_oTemplate->$sFunc($aContentInfo);
    }

    protected function _getApproveForm($iContentId, $aContentInfo)
    {
        $CNF = &$this->_oConfig->CNF;

        $sForm = 'sys_manage';
        if(!empty($CNF['OBJECT_FORM_MANAGE']))
            $sForm = $CNF['OBJECT_FORM_MANAGE'];

        $sFormDisplay = 'sys_manage_approve';
        if(!empty($CNF['OBJECT_FORM_MANAGE_APPROVE']))
            $sFormDisplay = $CNF['OBJECT_FORM_MANAGE_APPROVE'];

        $oForm = BxTemplFormView::getObjectInstance($sForm, $sFormDisplay);
        $oForm->aFormAttrs['action'] = BX_DOL_URL_ROOT . $this->_oConfig->getBaseUri() . 'approve';
        $oForm->aInputs['content_id']['value'] = $iContentId;
        foreach($oForm->aInputs['controls'] as $iKey => $mixedValue)
            if(is_numeric($iKey) && isset($mixedValue['name']) && $mixedValue['name'] == 'do_submit')
                $oForm->aInputs['controls'][$iKey]['value'] = _t('_sys_form_manage_input_do_submit_approve');

        /**
         * @hooks
         * @hookdef hook-bx_base_general-get_approve_form '{module_name}', 'get_approve_form' - hook to override approve content form
         * - $unit_name - module name
         * - $action - equals `get_approve_form`
         * - $object_id - not used
         * - $sender_id - not used
         * - $extra_params - array of additional params with the following array keys:
         *      - `content_id` - [int] content id
         *      - `content_info` - [array] content info array as key&value pairs
         *      - `override_result` - [object] by ref, an instance of approve content form, @see BxDolForm, can be overridden in hook processing
         * @hook @ref hook-bx_base_general-get_approve_form
         */
        bx_alert($this->_oConfig->getName(), 'get_approve_form', 0, 0, [
            'content_id' => $iContentId,
            'content_info' => $aContentInfo,
            'override_result' => &$oForm
        ]);

        return $oForm;
    }

    protected function _sendApproveMessage($iContentId, $aContentInfo, &$oForm)
    {
        $CNF = &$this->_oConfig->CNF;

        $sETemplate = 't_ManageApprove';
        if(!empty($CNF['ETEMPLATE_MANAGE_APPROVE']))
            $sETemplate = $CNF['ETEMPLATE_MANAGE_APPROVE'];

        $aEParams = array(
            'content_title' => !empty($CNF['FIELD_TITLE']) && !empty($aContentInfo[$CNF['FIELD_TITLE']]) ? $aContentInfo[$CNF['FIELD_TITLE']] : '',
            'notes' => $oForm->getCleanValue('notes'),
        );

        /**
         * @hooks
         * @hookdef hook-bx_base_general-get_approve_message '{module_name}', 'get_approve_form' - hook to override approve content message
         * - $unit_name - module name
         * - $action - equals `get_approve_message`
         * - $object_id - not used
         * - $sender_id - not used
         * - $extra_params - array of additional params with the following array keys:
         *      - `content_id` - [int] content id
         *      - `content_info` - [array] content info array as key&value pairs
         *      - `form` - [object] an instance of approve content form
         *      - `email_template` - [string] by ref, email template name, @see BxDolEmailTemplates, can be overridden in hook processing
         *      - `email_params` - [array] by ref, email template params, can be overridden in hook processing
         * @hook @ref hook-bx_base_general-get_approve_message
         */
        bx_alert($this->_oConfig->getName(), 'get_approve_message', 0, 0, [
            'content_id' => $iContentId,
            'content_info' => $aContentInfo,
            'form' => $oForm,

            'email_template' => &$sETemplate,
            'email_params' => &$aEParams,

            'email_template_ref' => &$sETemplate,
            'email_params_ref' => &$aEParams
        ]);

        return sendMailTemplate($sETemplate, 0, $aContentInfo[$CNF['FIELD_AUTHOR']], $aEParams);
    }

    protected function _processModerationNotifications($aContentInfo)
    {
        $CNF = &$this->_oConfig->CNF;

        if(empty($CNF['PARAM_AUTO_APPROVE']) || getParam($CNF['PARAM_AUTO_APPROVE']) == 'on')
            return;

        $aRecipients = $this->getModerators($aContentInfo);
        if(empty($aRecipients))
            return;

        $sModule = $this->_oConfig->getName();
        foreach($aRecipients as $iRecipientId)
            /**
             * @hooks
             * @hookdef hook-bx_base_general-pending_approval '{module_name}', 'pending_approval' - hook to notify admins/moderators about new pending approval content
             * - $unit_name - module name
             * - $action - equals `pending_approval`
             * - $object_id - content id
             * - $sender_id - content author profile id
             * - $extra_params - array of additional params with the following array keys:
             *      - `object_author_id` - [int] admin/moderator profile id
             * @hook @ref hook-bx_base_general-pending_approval
             */
            bx_alert($sModule, 'pending_approval', $aContentInfo[$CNF['FIELD_ID']], $aContentInfo[$CNF['FIELD_AUTHOR']], [
                'object_author_id' => (int)$iRecipientId
            ]);
    }

    protected function _rss ($aArgs, $sClass = 'SearchResult')
    {
        if (CHECK_ACTION_RESULT_ALLOWED !== ($sMsg = $this->checkAllowedBrowse())) {
            $this->_oTemplate->displayAccessDenied ($sMsg);
            exit;
        }

        $sMode = array_shift($aArgs);
        $aParams = $this->_buildRssParams($sMode, $aArgs);

        $o = $this->getObjectBrowse($sMode, $aParams, $sClass);
        if ($o->isError)
            $this->_oTemplate->displayPageNotFound ();
        else
            $o->outputRSS();

        exit;
    }

    protected function _getContent($iContentId = 0, $sFuncGetContent = true)
    {
        if(!$iContentId)
            $iContentId = bx_process_input(bx_get('id'), BX_DATA_INT);

        if(!$iContentId)
            return false;

        if($sFuncGetContent === true)
            $sFuncGetContent = 'getContentInfoById';

        if(empty($sFuncGetContent) || !method_exists($this->_oDb, $sFuncGetContent))
            return $iContentId;

        $aContentInfo = $this->_oDb->$sFuncGetContent($iContentId);
        if(!$aContentInfo)
            return false;

        return array($iContentId, $aContentInfo);
    }

    protected function _getContentForTimelinePost($aEvent, $aContentInfo, $aBrowseParams = array())
    {
    	$CNF = &$this->_oConfig->CNF;

    	$sUrl = bx_absolute_url(BxDolPermalinks::getInstance()->permalink('page.php?i=' . $CNF['URI_VIEW_ENTRY'] . '&id=' . $aContentInfo[$CNF['FIELD_ID']]));

    	//--- Image(s)
        $aImages = $this->_getImagesForTimelinePost($aEvent, $aContentInfo, $sUrl, $aBrowseParams);
        $aImagesAttach = $this->_getImagesForTimelinePostAttach($aEvent, $aContentInfo, $sUrl, $aBrowseParams);

        //--- Video(s)
        $aVideos = $this->_getVideosForTimelinePost($aEvent, $aContentInfo, $sUrl, $aBrowseParams);
        $aVideosAttach = $this->_getVideosForTimelinePostAttach($aEvent, $aContentInfo, $sUrl, $aBrowseParams);

        //--- Files(s)
        $aFiles = $this->_getFilesForTimelinePost($aEvent, $aContentInfo, $sUrl, $aBrowseParams);
        $aFilesAttach = $this->_getFilesForTimelinePostAttach($aEvent, $aContentInfo, $sUrl, $aBrowseParams);

        if($this->_bIsApi && getParam('sys_api_extended_units') != 'on') {
            $sTitle = '';
            if(isset($CNF['FIELD_TITLE']) && isset($aContentInfo[$CNF['FIELD_TITLE']]))
                $sTitle = $aContentInfo[$CNF['FIELD_TITLE']];
            else if(isset($CNF['FIELD_TEXT']) && isset($aContentInfo[$CNF['FIELD_TEXT']]))
                $sTitle = strmaxtextlen($aContentInfo[$CNF['FIELD_TEXT']], 20, '...');

            $sAbstract = isset($CNF['FIELD_ABSTRACT']) && isset($aContentInfo[$CNF['FIELD_ABSTRACT']]) ? $aContentInfo[$CNF['FIELD_ABSTRACT']] : '';

            $sText = isset($CNF['FIELD_TEXT']) && isset($aContentInfo[$CNF['FIELD_TEXT']]) ? $aContentInfo[$CNF['FIELD_TEXT']] : '';
            $sText = BxTemplFunctions::getInstance()->getStringWithLimitedLength(strip_tags($sText), 240);

            $aResults = [
                'url' => $sUrl,
                'title' => $sTitle,
                'abstract' => $sAbstract,
                'text' => $sText
            ];

            if(!empty($aImages) && is_array($aImages))
                $aResults['images'] = $aImages;
            if(!empty($aVideos) && is_array($aVideos))
                $aResults['videos'] = $aVideos;
            if(!empty($aFiles) && is_array($aFiles))
                $aResults['files'] = $aFiles;

            return $aResults;
        }

        //--- Title
        $sTitle = '';
        if(isset($CNF['FIELD_TITLE']) && isset($aContentInfo[$CNF['FIELD_TITLE']]))
            $sTitle = $aContentInfo[$CNF['FIELD_TITLE']];
        else if(isset($CNF['FIELD_TEXT']) && isset($aContentInfo[$CNF['FIELD_TEXT']]))
            $sTitle = strmaxtextlen($aContentInfo[$CNF['FIELD_TEXT']], 20, '...');

        //--- Text
        $sText = '';
        if(isset($CNF['FIELD_ABSTRACT']) && isset($aContentInfo[$CNF['FIELD_ABSTRACT']]))
            $sText = $aContentInfo[$CNF['FIELD_ABSTRACT']];
        if(empty($sText) && isset($CNF['FIELD_TEXT']) && isset($aContentInfo[$CNF['FIELD_TEXT']]))
            $sText = $aContentInfo[$CNF['FIELD_TEXT']];

        if(!empty($CNF['OBJECT_METATAGS']) && is_string($sText)) {
            $oMetatags = BxDolMetatags::getObjectInstance($CNF['OBJECT_METATAGS']);
            $sText = $oMetatags->metaParse($aContentInfo[$CNF['FIELD_ID']], $sText);
        }

        $sCategory = '';
        if (isset($CNF['OBJECT_CATEGORY']) && isset($CNF['OBJECT_CATEGORY']) && isset($aContentInfo[$CNF['FIELD_CATEGORY']])){
            $oCategory = BxDolCategory::getObjectInstance($CNF['OBJECT_CATEGORY']);
            if ($oCategory)
                $sCategory = $oCategory->getCategoryTitle($aContentInfo[$CNF['FIELD_CATEGORY']]);
        } 

        $aResult = [
            'title' => $sTitle,
            'text' => $sText,
            'images' => $aImages,
            'images_attach' => $aImagesAttach,
            'videos' => $aVideos,
            'videos_attach' => $aVideosAttach,
            'files' => $aFiles,
            'files_attach' => $aFilesAttach
        ];

        return $this->_bIsApi ? $aResult : array_merge($aResult, [
            'sample' => isset($CNF['T']['txt_sample_single_with_article']) ? $CNF['T']['txt_sample_single_with_article'] : $CNF['T']['txt_sample_single'],
            'sample_wo_article' => $CNF['T']['txt_sample_single'],
            'sample_action' => isset($CNF['T']['txt_sample_action']) ? $CNF['T']['txt_sample_action'] : '',
            'url' => $sUrl,
            'category' => $sCategory,
        ]);
    }

    protected function _getImagesForTimelinePost($aEvent, $aContentInfo, $sUrl, $aBrowseParams = array())
    {
        $CNF = &$this->_oConfig->CNF;

        if($this->_bIsApi) {
            $aResult = [];

            if(isset($CNF['FIELD_COVER']) && !empty($aContentInfo[$CNF['FIELD_COVER']])) {
                $aResult[] = bx_api_get_image($CNF['OBJECT_STORAGE'], (int)$aContentInfo[$CNF['FIELD_COVER']]);
            }

            if((($sK = $CNF['FIELD_THUMB'] ?? false) && !empty($aContentInfo[$sK])) || (($sK = $CNF['FIELD_PICTURE'] ?? false) && !empty($aContentInfo[$sK]))) {
                $aResult[] = bx_api_get_image($CNF['OBJECT_STORAGE'], (int)$aContentInfo[$sK]);
            }

            return $aResult;
        }

        $iImageId = 0;
        $sImageSm = $sImageMd = $sImageXl = '';
        if(isset($CNF['FIELD_COVER']) && !empty($aContentInfo[$CNF['FIELD_COVER']])) {
            $iImageId = (int)$aContentInfo[$CNF['FIELD_COVER']];
            $sImageSm = $this->_oConfig->getImageUrl($iImageId, ['OBJECT_IMAGES_TRANSCODER_MINIATURE', 'OBJECT_IMAGES_TRANSCODER_THUMB']);
            $sImageMd = $this->_oConfig->getImageUrl($iImageId, ['OBJECT_IMAGES_TRANSCODER_GALLERY', 'OBJECT_IMAGES_TRANSCODER_THUMB']);
            $sImageXl = $this->_oConfig->getImageUrl($iImageId, ['OBJECT_IMAGES_TRANSCODER_COVER']);
        }

        if($sImageMd == '' && (($sK = $CNF['FIELD_THUMB'] ?? false) && !empty($aContentInfo[$sK])) || (($sK = $CNF['FIELD_PICTURE'] ?? false) && !empty($aContentInfo[$sK]))) {
            $iImageId = (int)$aContentInfo[$sK];
            $sImageSm = $this->_oConfig->getImageUrl($iImageId, ['OBJECT_IMAGES_TRANSCODER_MINIATURE', 'OBJECT_IMAGES_TRANSCODER_THUMB']);
            $sImageMd = $this->_oConfig->getImageUrl($iImageId, ['OBJECT_IMAGES_TRANSCODER_GALLERY', 'OBJECT_IMAGES_TRANSCODER_THUMB']);
            $sImageXl = $this->_oConfig->getImageUrl($iImageId, ['OBJECT_IMAGES_TRANSCODER_COVER']);
        }

        if(empty($sImageMd))
            return [];

        if($sImageSm == '')
            $sImageSm = $sImageMd;

        if($sImageXl == '')
            $sImageXl = $sImageMd;

        return [[
            'id' => $iImageId, 
            'url' => $sUrl, 
            'src' => $sImageMd, 
            'src_small' => $sImageSm, 
            'src_medium' => $sImageMd, 
            'src_orig' => $sImageXl
        ]];
    }

    protected function _getImagesForTimelinePostAttach($aEvent, $aContentInfo, $sUrl, $aBrowseParams = array())
    {
        return array();
    }

    protected function _getVideosForTimelinePost($aEvent, $aContentInfo, $sUrl, $aBrowseParams = array())
    {
        return array();
    }

    protected function _getVideosForTimelinePostAttach($aEvent, $aContentInfo, $sUrl, $aBrowseParams = array())
    {
        return array();
    }

    protected function _getFilesForTimelinePost($aEvent, $aContentInfo, $sUrl, $aBrowseParams = array())
    {
        return array();
    }

    protected function _getFilesForTimelinePostAttach($aEvent, $aContentInfo, $sUrl, $aBrowseParams = array())
    {
        return array();
    }

    protected function _entityComments ($sObject, $iId = 0)
    {
        if (!$iId)
            $iId = bx_process_input(bx_get('id'), BX_DATA_INT);

        if (!$iId)
            return false;

        $oCmts = BxDolCmts::getObjectInstance($sObject, $iId);
        if (!$oCmts || !$oCmts->isEnabled())
            return false;
        
        if($this->_bIsApi)
            return [
                'title' => $oCmts->getCommentsBlockTitle(),
                'content' => [bx_srv('system', 'get_data_api', [['module' => $sObject, 'object_id' => $iId]], 'TemplCmtsServices')]
            ];

        return $oCmts->getCommentsBlock([], ['in_designbox' => false, 'show_empty' => false]);
    }

    protected function _getFields($iContentId)
    {
        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo))
            return array();

        return BxDolContentInfo::formatFields($aContentInfo);
    }

    protected function _getFieldValue($sField, $iContentId)
    {
        $CNF = &$this->_oConfig->CNF;
        if(empty($CNF[$sField]))
            return false;

        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo) || empty($aContentInfo[$CNF[$sField]]))
            return false;

        return $aContentInfo[$CNF[$sField]];
    }

    protected function _getFieldValueThumb($sField, $iContentId, $sTranscoder = '') 
    {
        $CNF = &$this->_oConfig->CNF;

        if(empty($sTranscoder) || empty($CNF[$sField]))
            return false;

        $aContentInfo = $this->_oDb->getContentInfoById($iContentId);
        if(empty($aContentInfo) || empty($aContentInfo[$CNF[$sField]]))
            return false;

        $oImagesTranscoder = BxDolTranscoderImage::getObjectInstance($sTranscoder);
        if(!$oImagesTranscoder)
            return false;

        return $oImagesTranscoder->getFileUrl($aContentInfo[$CNF[$sField]]);
    }

	protected function _prepareResponse($aResponse, $bAsJson = false, $aAdditional = array())
    {
    	if(!$bAsJson)
    		return $aResponse;

		if(!empty($aAdditional) && is_array($aAdditional))
			$aResponse = array_merge($aResponse, $aAdditional);

		echoJson($aResponse);
		exit;
    }  
    
    /**
     * Blocks for lables tree browsing private functions
     */
    
    private function _getLablesBreadcrumbsArray($iLabelId, &$aBreadcrumbs)
	{
		$oLabel = BxDolLabel::getInstance();
		$aLabel = $oLabel->getLabels(array('type' => 'id', 'id' => $iLabelId));
		if ($aLabel){
            $aBreadcrumbs[$aLabel['id']] = array('id' => $aLabel['id'], 'value' => $aLabel['value']);
			$this->_getLablesBreadcrumbsArray($aLabel['parent'], $aBreadcrumbs);
		}
	}
    
    private function _getLablesBrowseUrl($iLabelId)
	{
        list($sPageLink, $aPageParams) = bx_get_base_url_inline();
		return BxDolPermalinks::getInstance()->permalink(bx_append_url_params($sPageLink, array_merge($aPageParams, array('label' => $iLabelId))));
	}
    
    private function _getLablesTreeLevel($aBreadcrumbs, $iParent = 0)
	{
		$oLabel = BxDolLabel::getInstance();
		$aLabelsOutput = array();
        $aLabels = $oLabel->getLabels(array('type' => 'parent', 'parent' => $iParent));
        if (count($aLabels) > 0){
			foreach($aLabels as $aLabel) {
				$sChild = $this->_getLablesTreeLevel($aBreadcrumbs, $aLabel['id']);
				$bChildPresent = $sChild != '' ? true : false;
				$bIsOpen = array_key_exists($aLabel['id'], $aBreadcrumbs) ? true : false;
				if (!$bIsOpen){
					$sChild = '';
				}
				$aLabelsOutput[] = array(
					'value' => $aLabel['value'], 
					'url' => $this->_getLablesBrowseUrl($aLabel['id']),
					'child' => $sChild,
					
					'selected' => bx_process_input(bx_get('label'), BX_DATA_INT) == $aLabel['id'] ? 'selected' : ''.$aLabel['id'], 
					'bx_if:open' => array(
						'condition' => $bChildPresent && $bIsOpen,
						'content' => array()
					),
					'bx_if:can_open' => array(
						'condition' => $bChildPresent && !$bIsOpen,
						'content' => array()
					)
				);
			}
			return $this->_oTemplate->parseHtmlByName('labels_tree.html', 
				array(
					'bx_repeat:items' => $aLabelsOutput,
					'parent' => $iParent,
				)
			);
		}
		return '';
	}
}

/** @} */