CSort

$sort=new CSort; $sort->modelClass='Entity'; $sort->attributes=array( 'asc' => 'title', 'desc' => 'title DESC', ); foreach(Entity::model()->attributeNames() as $attr) $sort->attributes[]="relatedEntity.$attr"; //Important! The default separator uses a dot for separate the direction from the attribute, and the related attribute is separated by a dot too! $sort->separator=array(',','-');