无法在 Laravel 配置文件控制器中使用 Auth::user() 传递 $user 变量

Question

I just started learning Laravel a week ago, and I've run into an issue with middleware and using Auth::user(). For Laravel >5.3, you can no longer pass session variables within the controller. I want to be able to pass the $user model back into the blade file (entered in as {{$user->avatar}} within an URL string), but I don't know how to do it.

I spent an entire day (based on suggestions from https://laravel.com/docs/5.3/upgrade#5.3-session-in-constructors )), and I consistently get null values, with the error (Undefined variable: user). I'm really at a loss of how to proceed, and will be grateful if anyone could help me.

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\File;
use App\Http\Requests;
use App\User;
use Auth;
use Image;

class ProfileController extends Controller
{
    public function profile($id)
    {
        $user = User::where('id', $id)->first();
        return view('user.profile',compact('user'));
    }

    public function update_avatar(Request $request)
    {
        if($request->hasFile('avatar')){
            $avatar = $request->file('avatar');
            $filename = time() . '.' . $avatar->getClientOriginalExtension();
            Image::make($avatar)->resize(300, 300)->save( public_path('/uploads/avatars/' . $filename));

            $user = Auth::user();
            $user->avatar = $filename;
            $user->save();
            dd($user);
        }
        return view('user.profile',compact('user'));
    }
}

Answer 1

You don't need to pass an authenticated user from the controller.

In your Blade template, just directly use this, for example:

{{ Auth::user()->id }}

This assumes User is logged in.

Answer 2

As your dd(Auth::user()) inside the profile() method returned your expected data, try this:

public function profile(){
    $user = Auth::user();
    return view('profile', compact('user'));
}

You should then be able to do {{ $user->id }} in your blade file. I know the above code is similar to what you have but it's worth a shot!

Answer 3

If you create your own admin auth guard. As your dd(Auth::guard('admin')->user()) inside the your profile() method returned your expected data for login admin user, try this:

public function profile(){
     $user = Auth::guard('admin')->user();
     return view('profile', compact('user'));
}

You should then be able to do {{ $user->id }} in your blade file. I know the above code is similar to what you have but it's worth a short.

if you create your own auth guard use tha auth data then use user() method with your auth guard name.