private function addContainer($diyId, $itemId){
        // Generate template container
        $template = Diy::generateTemplateContainer($diyId, $itemId);
        
        $model = Diy::find()->where(['_id' => $diyId])->one();
        if ($model) {
            // Neu data la mang rong thi add container moi vao
            if (empty($model->data)){
                $model->data = [
                    $itemId => []
                ];
            } else { // Neu data khong phai la mang rong thi merge container moi vao mang hien co
                $model->data = ArrayHelper::merge($model->data, [
                    $itemId => []
                ]);
            }
            
            $model->save();
        }
        
        return $template;
    }