Laravel-如何在AppServiceProvider中获取当前用户 [英] Laravel - How to get current user in AppServiceProvider

问题描述

因此，通常我会使用Auth::user()来获取当前用户，并且在确定用户是否实际登录Auth::check时会使用它.但是，这似乎在我的AppServiceProvider中不起作用.我正在使用它在所有视图之间共享数据.我在登录时同时var_dump和var_dump都得到了NULL和false.

So I am usually getting the current user using Auth::user() and when I am determining if a user is actually logged in Auth::check. However this doesn't seem to work in my AppServiceProvider. I am using it to share data across all views. I var_dump both Auth::user() and Auth::check() while logged in and I get NULL and false.

如何在AppServiceProvider中获取当前用户?如果这不可能，那么在所有视图中如何获取每个用户唯一的数据(根据user_id而不同的数据)的方式是什么.这是我的澄清代码.

How can I get the current user inside my AppServiceProvider ? If that isn't possible, what is the way to get data that is unique for each user (data that is different according to the user_id) across all views. Here is my code for clarification.

if (Auth::check()) {
        $cart = Cart::where('user_id', Auth::user()->id);
        if ($cart) {
            view()->share('cart', $cart);

        }
    } else {
        view()->share('cartItems', Session::get('items'));
    }

推荐答案

Laravel会话在中间件中初始化，因此您无法从服务提供商访问该会话，因为它们在之前执行在请求生命周期中

Laravel session is initialized in a middleware so you can't access the session from a Service Provider, because they execute before the middleware in the request lifecycle

您应该使用中间件来共享会话中的变量

You should use a middleware to share your varibles from the session

如果出于某些其他原因要在服务提供商中进行操作，则可以使用带有回调的View Composer ，如下所示:

If for some other reason you want to do it in a service provider, you could use a view composer with a callback, like this:

public function boot()
{
    //compose all the views....
    view()->composer('*', function ($view) 
    {
        $cart = Cart::where('user_id', Auth::user()->id);

        //...with this variable
        $view->with('cart', $cart );    
    });  
}

仅当实际构成视图时才执行回调，因此中间件将已经执行并且会话可用

The callback will be executed only when the view is actually being composed, so middlewares will be already executed and session will be available

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