public function delete(MediaModel $media, UserAccountModel $user)
 {
     global $DB;
     try {
         $DB->beginTransaction();
         $stat = $DB->prepare("UPDATE media_in_group SET removed_by_user_account_id=:removed_by_user_account_id," . " removed_at=:removed_at , removal_approved_at= :removal_approved_at WHERE " . " media_id=:media_id AND removed_at IS NULL ");
         $stat->execute(array('media_id' => $media->getId(), 'removed_at' => \TimeSource::getFormattedForDataBase(), 'removal_approved_at' => \TimeSource::getFormattedForDataBase(), 'removed_by_user_account_id' => $user->getId()));
         $stat = $DB->prepare("UPDATE media_in_venue SET removed_by_user_account_id=:removed_by_user_account_id," . " removed_at=:removed_at , removal_approved_at= :removal_approved_at WHERE " . " media_id=:media_id AND removed_at IS NULL ");
         $stat->execute(array('media_id' => $media->getId(), 'removed_at' => \TimeSource::getFormattedForDataBase(), 'removal_approved_at' => \TimeSource::getFormattedForDataBase(), 'removed_by_user_account_id' => $user->getId()));
         $stat = $DB->prepare("UPDATE media_in_event SET removed_by_user_account_id=:removed_by_user_account_id," . " removed_at=:removed_at , removal_approved_at= :removal_approved_at WHERE " . " media_id=:media_id AND removed_at IS NULL ");
         $stat->execute(array('media_id' => $media->getId(), 'removed_at' => \TimeSource::getFormattedForDataBase(), 'removal_approved_at' => \TimeSource::getFormattedForDataBase(), 'removed_by_user_account_id' => $user->getId()));
         $stat = $DB->prepare("UPDATE media_information SET deleted_by_user_account_id=:deleted_by_user_account_id," . " deleted_at=:deleted_at WHERE " . " id=:id AND deleted_at IS NULL ");
         $stat->execute(array('id' => $media->getId(), 'deleted_at' => \TimeSource::getFormattedForDataBase(), 'deleted_by_user_account_id' => $user->getId()));
         $DB->commit();
     } catch (Exception $e) {
         $DB->rollBack();
     }
     $media->deleteFiles();
 }
 public function remove(MediaModel $media, GroupModel $group, UserAccountModel $user)
 {
     global $DB;
     $stat = $DB->prepare("UPDATE media_in_group SET removed_by_user_account_id=:removed_by_user_account_id," . " removed_at=:removed_at, removal_approved_at=:removal_approved_at  WHERE " . " group_id=:group_id AND media_id=:media_id AND removed_at IS NULL ");
     $stat->execute(array('group_id' => $group->getId(), 'media_id' => $media->getId(), 'removed_at' => \TimeSource::getFormattedForDataBase(), 'removal_approved_at' => \TimeSource::getFormattedForDataBase(), 'removed_by_user_account_id' => $user->getId()));
 }