public function actionDelete_video($mid)
{
$videos = new Videos();
if ($to_delete = $videos->find('user_id = :my_id AND id = :video_id', array(':my_id' => Yii::app()->user->id, ':video_id' => $mid))) {
$to_delete->delete();
}
echo json_encode(array('status' => 'ok', 'count' => $count = $videos->count('user_id = :user_id', array('user_id' => Yii::app()->user->id))));
}