public function actionLink()
{
// $lessons = Lesson::model()->findAllByAttributes(array('mediaType'=>'link'));
$criteria = new CDbCriteria();
$criteria->condition = "mediaType='' and mediaUri!=''";
$lessons = Lesson::model()->findAll($criteria);
foreach ($lessons as $lesson) {
$link = new MediaLink();
$link->url = $lesson->mediaUri;
$link->title = $lesson->title;
if ($link->save()) {
$lesson->mediaType = "link";
$lesson->mediaId = $link->getPrimaryKey();
$lesson->save();
}
}
}