问题描述
我创建了一个只在我的电话号码上存储数字的 mutator.这是我的配置文件模型中的代码.
Hi I have created a mutator to only store digits on my phone numbers. Here is my code in my Profile Model.
public function setPhoneAttribute($phone) { $this->attributes['phone'] = preg_replace("/[^0-9]/","",$phone); }
这在我创建新记录时有效,但如果我更新记录则不起作用.我的问题是如何在创建和更新时执行 Mutator?
This works when I create a new record, but if I update the record it does not work. My question is how do I execute the Mutator on both create and update?
以下是我在控制器中更新和创建的方法:
Here is how I update and create in my controller:
namespace AppHttpControllers; use AppHttpRequests; use AppHttpRequestsProfileRequest; use AppHttpControllersController; use IlluminateHttpRequest; use Auth; use AppProfile; class ProfileController extends Controller { public function create(ProfileRequest $request) { // Check if the user does not have a profile yet if(!Auth::user()->profile()->first()){ // Save to database $saveToDatabase = Auth::user()->profile()->create($request->all()); return $saveToDatabase; } } public function update(Profile $profile, ProfileRequest $request) { // Save to database $saveToDatabase = Auth::user()->profile()->update($request->all()); return $saveToDatabase; } }
推荐答案
情况如下:
Auth::user()->profile()->create($request->all()) 调用关系的 create 方法(HasOneOrMany).此方法然后创建一个相关模型的新实例.这很重要,因为显然属性修改器仅在通过模型创建记录时使用.
Auth::user()->profile()->create($request->all()) calls the create method on your relationship (HasOneOrMany). This method then creates a new instance of the related model. This is important because obviously attribute mutators are only used when the record is created through the model.
然而,关系对象没有任何 update 方法.(拥有一个也没有意义......).因此,当您执行 Auth::user()->profile()->update($request->all()) 时,会发生什么.update 调用被代理到查询构建器实例(匹配关系).这会导致执行以下内容:
However the relationship object doesn't have any update method. (It also wouldn't make sense to have one...). So what's happening instead is, when you do Auth::user()->profile()->update($request->all()). The update call get's proxied off to a query builder instance (that matches the relationship). This results in something like this being executed:
UPDATE profiles SET foo = 'bar' WHERE [relationship conditions]
它根本不使用模型.因此,mutator 不起作用.
It doesn't use the model at all. Therefore the mutator doesn't work.
相反,您必须在实际相关模型上调用 update 方法.您可以通过将关系作为属性调用来访问它:
Instead you have to call the update method on the actual related model. You can access it by just calling the relation as a property like this:
$saveToDatabase = Auth::user()->profile->update($request->all()); // ^^ // no parentheses
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如果 Profile 模型被正确注入,你实际上也可以使用它:
If the Profile model is injected correctly you actually might also just use that though:
public function update(Profile $profile, ProfileRequest $request) { // Save to database $saveToDatabase = $profile->update($request->all()); return $saveToDatabase; }