Yii2高级排序

Question

如何在Yii2中实现以下排序：

SELECT * FROM `orders` order by case when status != 'ORDER_DONE' then 1 else 2 end,status

我想将ORDER_DONE的状态删除到底部。有什么想法吗？

Answer 1

自2.0.7起，您可以将yii\db\Expression传递给orderBy()，所以请执行以下操作：

(new \yii\db\Query)
->from('orders')
->orderBy(new \yii\db\Expression('CASE WHEN status != "ORDER_DONE" THEN 1 ELSE 2 END, status'))
->all();

用于分类数据提供者使用：

'sort' => [
    'attributes' => [
        'onlinedate' => [
            'asc' => [new \yii\db\Expression('CASE WHEN status != "ORDER_DONE" THEN 1 ELSE 2 END, status')],
            'desc' => [new \yii\db\Expression('CASE WHEN status = "ORDER_DONE" THEN 1 ELSE 2 END, status')],
        ],
    ],
]