cascade delete the child record of the table

Question

I have table with column id, name and parentid

relation function in model:

 \'location_parent\' => array(self::BELONGS_TO, \'Location\', \'parenti         


        

Answer 1

In your model override the beforeDelete method to delete all child records recursively before deleting the parent i.e.

public function beforeDelete(){
    foreach($this->location_children as $c)
        $c->delete();
    return parent::beforeDelete();
}

Be sure to wrap the initial delete call in a transaction to ensure all or none of the records are deleted.

You could also just use CDbCommand to perform the deletion.