yii2模型中的关系表

Question

I have 3 tables ( order , order_delivery , order_types ). Every table has model. For order I create gridview. Table order has column order_number , table order_delivery has order_number and order_delivery_code , table order_type delivery_types_code and delivery_types_name . In Order I write function public function getType(){ return $this->hasOne(OrderDelivery::className(), ['order_id' => 'order_id']); } public function getType(){ return $this->hasOne(OrderDelivery::className(), ['order_id' => 'order_id']); } and in Index write 'columns' => [ ['class' => 'yii\\grid\\SerialColumn'], 'type.order_delivery_code' . And get order_delivery_code for orders in gridview. How can I get delivery_types_name from order_type for orders in gridview?

Answer 1

in Order model create relation to OrderDelivery

in OrderDelivery model create relation to OrderDeliveryType

in SearchOrder do like this:

$query->with(['orderDelivery','orderDelivery.orderDeliveryType'])

and in index.php GridView:

'attribute'=>'orderDelivery.orderDeliverType.delivery_types_name'