Yii2 删除方法

直接 model 删除

$model = User::find($id);
$model->delete();

带有条件的删除

$connection ->createCommand()
            ->delete('tbl_user', 'status = 0')
            ->execute();

使用 Query 查询删除

$connection ->createCommand('DELETE FROM tbl_user WHERE userid=:userid')
            ->execute();

使用预处理语句删除

方法一

$model = $connection->createCommand('DELETE FROM tbl_user WHERE userid=:userid');
$model->bindParam(':userid', $userid);
$userid = 5;
$model->execute();

方法二

在 Yii2 使用预处理语句删除多个用户。

$model = $connection->createCommand('DELETE FROM tbl_user WHERE userid=:userid');
$model->bindParam(':userid', $userid);
// delete user 1
$userid = 1;
$model->execute();
// delete user 2
$userid = 2;
$model->execute();

查找并且删除

$user = User::findOne(2);
$user->delete();
// 输出语句
// DELETE FROM `tbl_user` WHERE `id`='2'

deleteAll() 删除多个

如果你不指定任何条件下,该方法将删除表中的所有行。例如删除用户表中状态条件是 active 和年龄大于20的用户。

方法一

User::deleteAll('status = :status AND age > :age', [':age' => 20, ':status' => 'active']);
//Output Query
//DELETE FROM `tbl_user` WHERE status = 'active' AND age > 20

方法二

$model->deleteAll([
        'and',
        'type' = 'aa',
        ['not in', ’categoryid’, $_ids] //$categoriesList为数组,如array(1,2,3,4)
    ]);
//DELETE FROM `tbl_user` WHERE (type = 'aa') AND (categoryid NOT IN ($_ids))

$model->deleteAll(['in', '’categoryid’', $_ids]);
//DELETE FROM `tbl_user` WHERE categoryid IN ($_ids))