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Hello All, Sometimes we want to delete parent table on parent child relation on Yii, First we must set relation, Parent Model : public function relations() { return array( 'Childs' => array(self::HAS_MANY, 'ChildModel', 'parent_id'), ); } Child Model : public function relations() { return array( 'Parent' => array(self::BELONGS_TO, 'ParentModel', 'parent_id'), ); } On delete parent, at function below (parent model) : public function beforeDelete(){ foreach($this->Childs as $c) $c->delete() return parent::beforeDelete(); } That's all. Hope this post can help you.