public function remove_submission_notes($sub_id)
 {
     if (is_array($sub_id)) {
         foreach ($sub_id as $sub_id_) {
             RM_DBManager::delete_rows('NOTES', array('submission_id' => $sub_id_));
         }
     } elseif ((int) $sub_id) {
         RM_DBManager::delete_rows('NOTES', array('submission_id' => $sub_id));
     } else {
         throw new InvalidArgumentException("Invalid Submission ID '{$sub_id}'.");
     }
 }
 public function log_front_user_off($user_email)
 {
     $this->unset_auth_params();
     return RM_DBManager::delete_rows('FRONT_USERS', array('email' => $user_email));
 }
 public function reset($form_id)
 {
     //RM_DBManager::delete_and_reset_table('STATS');
     RM_DBManager::delete_rows('STATS', array('form_id' => $form_id), array('%d'));
 }