function getCampaigns($aParams, $level, $expand = '')
 {
     $aEntitiesData = parent::getCampaigns($aParams, $level, $expand);
     $this->maskHiddenEntities($aEntitiesData, 'campaign');
     if ($level == $this->startLevel) {
         $this->addBlanks($aParams, $aEntitiesData);
     }
     return $aEntitiesData;
 }
 function getCampaigns($aParams, $level, $expand = '')
 {
     $aEntitiesData = parent::getCampaigns($aParams, $level, $expand);
     $this->maskHiddenEntities($aEntitiesData, 'campaign');
     return $aEntitiesData;
 }