Laravel：Eloquent 如何一次性更新模型和相关模型
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Laravel: Eloquent how to update a model and related models in one go
提问by MvdP
Does anyone know if it is possitble to do the folowing:
有谁知道是否可以执行以下操作：
Let's say we have a model called User and a model calledd BestFriend. The relation between the User and the best friend is 1:1.
假设我们有一个名为 User 的模型和一个名为 BestFriend 的模型。用户和最好的朋友之间的关系是 1:1。
I would like for these cases be able to do something like this, change my city and the city of my friend at the same time.
我希望这些案例能够做这样的事情，同时改变我的城市和我朋友的城市。
$me = User::find(1);
$me->update(array(
'city' => 'amsterdam',
'bestfriend.city' => 'amsterdam'
));
So basically I would like to know if Eloquent is smart enough to understand the relationship based on the array key 'bestfriend.city'.
所以基本上我想知道 Eloquent 是否足够聪明来理解基于数组键“bestfriend.city”的关系。
Thanks in advance for any help!
在此先感谢您的帮助！
Update:
更新：
Found the solution on the Laravel forums but im posting it here as well if someone else is looking for the same thing :)
在 Laravel 论坛上找到了解决方案，但如果其他人正在寻找同样的东西，我也会在这里发布它:)
In the model you add
在您添加的模型中
// In your model...
public function setBestFriendArrayAttribute($values)
{
$this->bestfriend->update($values);
}
And then you can call it like this
然后你可以这样称呼它
$me->update(array(
'city' => 'amsterdam',
'BestFriendArray' => array(
'city' => 'amsterdam'
)
));
Works like a charm!
奇迹般有效！
回答by dakine
You don't need to set it on your model. You can do it on your controller like this.
你不需要在你的模型上设置它。您可以像这样在控制器上执行此操作。
$me = User::find(1)->bestFriend()->update(array(
'city' => 'amsterdam',
'bestfriend.city' => 'amsterdam'
));
I just modified your update a little bit.
我只是稍微修改了您的更新。
回答by user1669496
Eloquent is pretty smart, but I don't believe it can do that. You would have to update User and BestFriend independently. But once you've done that, Eloquent does have methods for attaching the two.
Eloquent 非常聪明，但我不相信它可以做到这一点。您必须独立更新 User 和 BestFriend。但是一旦你这样做了，Eloquent 确实有将两者联系起来的方法。
$me = User::find(1);
$bff= BestFriend::find(1);
$me->city = 'amsterdam';
$bff->city = 'amsterdam';
$me->bestfriend()->associate($bff);
This is of course assuming your User model has a function that looks like...
这当然是假设你的 User 模型有一个看起来像......
public function bestfriend()
{
return $this->hasOne('BestFriend');
}
