laravel 在 Eloquent 中将 withTrashed 与关系一起使用
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Using withTrashed with relationships in Eloquent
提问by Vuk Stankovi?
Is there a way to use withTrashedwith relationships in Eloquent.
有没有办法withTrashed在 Eloquent 中使用关系。
What I need is this. I have table and model Markand another table User. Userhas many Markand Markbelongs to User. So I defined this in Eloquent models.
我需要的是这个。我有桌子和模型Mark以及另一张桌子User。User有很多Mark，Mark属于User。所以我在 Eloquent 模型中定义了它。
Now I need to get an instance of Markthat is soft deleted. This is not a problem if Userisn't soft deleted, but if both Markand Userare soft deleted, I get an error Trying to get property of non-object, because
现在我需要得到一个Mark软删除的实例。这不是一个问题，如果User没有软删除，但如果同时Mark和User被软删除，我得到一个错误Trying to get property of non-object，因为
$mark->user
won't return actual user, cause it is soft deleted.
不会返回实际用户，因为它被软删除。
Is there a way that I can do something like
有没有办法让我做类似的事情
$mark->withTrashed()->user
to get this related user even if it is deleted?
即使删除了这个相关用户，也要获取它吗？
回答by Jarek Tkaczyk
Depenging on your needs, you can define the relationship:
根据您的需要，您可以定义关系：
public function marks()
{
return $this->hasMany('Mark')->withTrashed();
}
// then just
$user->marks;
or use it on the fly:
或即时使用它：
$user->marks()->withTrashed()->get();
// or when lazy/eager loading
$user = User::with(['marks' => function ($q) {
$q->withTrashed();
}])->find($userId);
And in your pasted example it will be:
在您粘贴的示例中，它将是：
$mark->user() // get relation object first
->withTrashed() // apply withTrashed on the relation query
->first(); // fetch the user
// alternatively you use getResults relation method
$mark->user()
->withTrashed()
->getResults(); // returns single model for belongsTo
$user->marks()->withTrashed()
->getResults(); // returns collection for hasMany
回答by lowerends
You can do that like this:
你可以这样做：
$mark->withTrashed()->first()->user->withTrashed()->first()
