Active Record 中的 Yii2 子查询

Question

如何将此 sql 转换为活动记录查询

SELECT * FROM `base_twitter` WHERE id NOT IN (SELECT base_id from base_followers)

Answer 1

假设您的模型相应地命名为 BaseTwitter 和 BaseFollower，这应该有效：

$subQuery = BaseFollower::find()->select('id');
$query = BaseTwitter::find()->where(['not in', 'id', $subQuery]);
$models = $query->all();

Answer 2

// SELECT * FROM (SELECT * FROM `user` WHERE `active` = 1) `activeusers`;
$subquery = (new \yii\db\Query)->from('user')->where(['active' => true])
$query = (new \yii\db\Query)->from(['activeusers' => $subquery]);

// subquery can also be a string with plain SQL wrapped in parenthesis
// SELECT * FROM (SELECT * FROM `user` WHERE `active` = 1) `activeusers`;
$subquery = "(SELECT * FROM `user` WHERE `active` = 1)";
$query = (new \yii\db\Query)->from(['activeusers' => $subquery]);

Answer 3

试试这个查询

$models = BaseTwitter::find()->where('id NOT IN (SELECT base_id from base_followers)')->all();

Active Record 中的 Yii2 子查询

Yii2 subquery in Active Record

yii

yii2