Yii2:can'；t使用innerJoin创建sql命令

我不太擅长

SQL

，但我尽我所能，因为我所知甚少

在一位朋友的帮助下，我制作了一个简单的

SQL

字符串，该字符串使用相对表从第一个表的初始数据中收集数据，

SQL

如下所示：

SELECT id, username, auth_assignment.created_at
FROM `user` JOIN `auth_assignment`
ON (user.id = auth_assignment.user_id)
JOIN `auth_item`
ON (auth_item.name = auth_assignment.item_name)
WHERE auth_item.name = 'Admin'

SELECT `id`, `username` INNER JOIN `auth_assignment` ON `user`.`id`=:qp1 INNER JOIN `auth_item` ON `auth_item`.`name`=:qp2 WHERE auth_item.name = :name 

要查看的初始数据是

Admin

，因此这方面的一切都正常，但我尝试使用

Yii2

函数模拟这个

SQL

。。到目前为止，我已经做了这个代码

$query = new Query;

$command = $query->select('id, username')
    ->innerJoin('auth_assignment', ['user.id'=>'auth_assignment.user_id'])
    ->innerJoin('auth_item', ['auth_item.name'=>'auth_assignment.item_name'])
    ->where('auth_item.name = :name', [':name'=>$name])->createCommand();

var_dump($command->query());

这将返回一个

SQLSTATE

错误：

SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'INNER JOIN `auth_assignment` ON `user`.`id`='auth_assignment.user_id' INNER JOIN' at line 1
The SQL being executed was: SELECT `id`, `username` INNER JOIN `auth_assignment` ON `user`.`id`='auth_assignment.user_id' INNER JOIN `auth_item` ON `auth_item`.`name`='auth_assignment.item_name' WHERE auth_item.name = 'Admin'

我检查了方法

$command->sql

以了解如何生成

SQL

。。但我真的不知道如何修复它，因为我对

SQL

缺乏了解，对

yii2

api文档也缺乏理解

SQL

是这样生成的：

SELECT id, username, auth_assignment.created_at
FROM `user` JOIN `auth_assignment`
ON (user.id = auth_assignment.user_id)
JOIN `auth_item`
ON (auth_item.name = auth_assignment.item_name)
WHERE auth_item.name = 'Admin'

SELECT `id`, `username` INNER JOIN `auth_assignment` ON `user`.`id`=:qp1 INNER JOIN `auth_item` ON `auth_item`.`name`=:qp2 WHERE auth_item.name = :name 

非常感谢您的帮助

请尝试此查询

$query = (new yii\db\Query())
         ->select('id, username, auth_assignment.created_at')
         ->from('user')
         ->innerJoin('auth_assignment','user.id=auth_assignment.user_id')
         ->innerJoin('auth_item','auth_item.name = auth_assignment.item_name')
         ->where([
               'auth_item.name' => 'Admin'
         ])->all();