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How to write subquery in yii2 framework

爱喝马黛茶的安东尼
爱喝马黛茶的安东尼Original
2019-12-09 13:52:305017browse

How to write subquery in yii2 framework

How to use subquery in Yii

The first step is to create a subquery, which can be Created based on yii\db\Query or based on Model.

$subQuery = Order::find()
->where(['user_id' => $userId])
->andWhere(['status' => $status]);

You can also add sorting and paging, for example:

$subQuery->orderBy(['id' => SORT_ASC])
->offset($offset)
->limit($pageSize);

Then we can use this subquery in our main query, as long as it is a place where subqueries can be written in mysql , you can use this subquery directly.

$list = (new Query())->select($field)
->from(['order' => $subQuery]) // 在这里使用了子查询
->leftJoin(['goods' => OrderGoods::tableName()], 'order.id = goods.order_id')
->createCommand()
->queryAll();

Finally generated statement

SELECT
*
FROM
( SELECT
* 
FROM
`od_order` 
WHERE
( `user_id` = '1' ) 
ORDER BY
`id` ASC
LIMIT 10 OFFSET 1 
) `order`
LEFT JOIN `od_order_goods` `goods` ON `order`.id = goods.order_id

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