Question

我正在使用Laravel-5.8作为后端开发Web应用程序。我有一个发帖请求，如下所示：

    public function storeClientQuote(Request $request)
    {
        $user = Auth::user();
        $userFirstName = Auth::user()->first_name;
        $userLastName = Auth::user()->last_name;
        $userEmail = Auth::user()->email;

        $dashboardowner = Client::join("users","users.client_id","=","clients.client_id")
                            ->select("clients.client_name", "users.id", "users.first_name", "clients.address1", "clients.address2")
                            ->where('users.id', $user->id) 
                            ->get();  

        if(!Auth::user()->hasPermissionTo('Add Quote'))
            return response()->json([ "message" => 'User do not have permission'], 401);
        $request->validate([
            'phone' => 'required|max:14',
          //  'business_name' => 'string',
            'truck_type' => 'required',
            'truck_required' => 'required',
            'quote_origin' => 'required',
            'quote_destination' => 'required',
            'commodity' => 'required',  
            'loading_date' => 'date|required' 
        ]);
        $clientquote = new ClientQuote;
        $clientquote->first_name= $userFirstName;
        $clientquote->last_name=$userLastName;
        $clientquote->email=$userEmail;
        $clientquote->phone=$request->get('phone');
        $clientquote->business_name= $dashboardowner[0]->client_name;
        $clientquote->address= $dashboardowner[0]->address1 . " " . $dashboardowner[0]->address2;
        $clientquote->truck_type=$request->get('truck_type');
        $clientquote->truck_required=$request->get('truck_required');
        $clientquote->quote_origin=$request->get('quote_origin');
        $clientquote->quote_destination=$request->get('quote_destination');
        $clientquote->commodity=$request->get('commodity');
        $loading_date=date_create($request->get('loading_date'));
        $format = date_format($loading_date,"Y-m-d H:i:s");
        $clientquote->loading_date = $format;
        $clientquote->save();


        return response()->json([
            'message' => 'Quote Successfully Sent!'
        ], 201);
    }

当我尝试调试时，我发现错误始于：

$ userFirstName = Auth :: user（）-> first_name;

显示以下消息：

消息：“试图获取非对象的属性'first_name'”，异常：“ ErrorException”

我该如何解决？

Answer 1

该消息表示Auth :: user（）返回null，这通常在没有登录用户的情况下发生。首先尝试检查用户是否使用Auth::check()登录，然后再尝试访问Auth::user()的属性

如果该控制器方法仅用于或已登录用户，则可以在调用该控制器方法的路由上设置Auth Middleware。

并且如果只允许登录用户访问整个控制器，请在控制器构造方法中设置Auth Middleware。

这样，您始终可以确保已登录的用户是可访问的，即Auth :: user（）将是一个对象

Answer 2

尝试

$user = auth()->user();
$userFirstName = $user->first_name;

Laravel-消息：“试图获取非对象的属性'first_name'”，异常：“ ErrorException”

2 个答案: