/**
  * @param int $mappingID
  * @param $now
  *
  * @throws CRM_Core_Exception
  */
 public static function sendMailings($mappingID, $now)
 {
     $mapping = CRM_Utils_Array::first(self::getMappings(array('id' => $mappingID)));
     $actionSchedule = new CRM_Core_DAO_ActionSchedule();
     $actionSchedule->mapping_id = $mappingID;
     $actionSchedule->is_active = 1;
     $actionSchedule->find(FALSE);
     while ($actionSchedule->fetch()) {
         $query = CRM_Core_BAO_ActionSchedule::prepareMailingQuery($mapping, $actionSchedule);
         $dao = CRM_Core_DAO::executeQuery($query, array(1 => array($actionSchedule->id, 'Integer')));
         $multilingual = CRM_Core_I18n::isMultilingual();
         while ($dao->fetch()) {
             // switch language if necessary
             if ($multilingual) {
                 $preferred_language = CRM_Core_DAO::getFieldValue('CRM_Contact_DAO_Contact', $dao->contactID, 'preferred_language');
                 CRM_Core_BAO_ActionSchedule::setCommunicationLanguage($actionSchedule->communication_language, $preferred_language);
             }
             $errors = array();
             try {
                 $tokenProcessor = self::createTokenProcessor($actionSchedule, $mapping);
                 $tokenProcessor->addRow()->context('contactId', $dao->contactID)->context('actionSearchResult', (object) $dao->toArray());
                 foreach ($tokenProcessor->evaluate()->getRows() as $tokenRow) {
                     if ($actionSchedule->mode == 'SMS' or $actionSchedule->mode == 'User_Preference') {
                         CRM_Utils_Array::extend($errors, self::sendReminderSms($tokenRow, $actionSchedule, $dao->contactID));
                     }
                     if ($actionSchedule->mode == 'Email' or $actionSchedule->mode == 'User_Preference') {
                         CRM_Utils_Array::extend($errors, self::sendReminderEmail($tokenRow, $actionSchedule, $dao->contactID));
                     }
                 }
             } catch (\Civi\Token\TokenException $e) {
                 $errors['token_exception'] = $e->getMessage();
             }
             // update action log record
             $logParams = array('id' => $dao->reminderID, 'is_error' => !empty($errors), 'message' => empty($errors) ? "null" : implode(' ', $errors), 'action_date_time' => $now);
             CRM_Core_BAO_ActionLog::create($logParams);
             // insert activity log record if needed
             if ($actionSchedule->record_activity && empty($errors)) {
                 $caseID = empty($dao->case_id) ? NULL : $dao->case_id;
                 CRM_Core_BAO_ActionSchedule::createMailingActivity($actionSchedule, $mapping, $dao->contactID, $dao->entityID, $caseID);
             }
         }
         $dao->free();
     }
 }