Question

我面对这个错误并且无法找到问题所在，因为它只提到Function（）不存在，起初我虽然上限问题，因为函数F是大写但我不是这样的因为我已经浏览过每一行代码很多次，如果有人能指出它的话。

场景是这样的，我在mysql中有一个带有虚拟播种机数据的登录页面。 PHP表单用于验证用户，然后重定向到仪表板页面，但重定向后显示错误页面..

屏幕截图是否有帮助。

CheckRole.php

<?php

namespace App\Http\Middleware;

use Closure;

class CheckRole
{
    public function handle($request, Closure $next)
    {
      $roles = $this->getRequiredRoleForRoute($request->route());
      if ($request->user()->hasRole($roles) || !$roles)
      {
        return $next($request);
      }
      return redirect()->route('noPermission');
    }

    private function getRequiredRoleForRoute($route)
    {
      $actions = $route->getAction();
      return isset($actions['roles']) ? $actions['roles'] : null;
    }
}

DashboardController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class DashboardController extends Controller
{
    public function __construct ()
    {
      $this->middleware('web');
    }

    public function dashboard()
    {
      return view('layout.dashboard');
    }
}

LoginController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\AuthenticatesUsers;
use Auth;

class LoginController extends Controller
{
    use AuthenticatesUsers;

    protected $name = 'name';
    protected $redirectTo = '/dashboard';
    protected $guard = 'web';

    public function getLogin()
    {
      if (Auth::guard('web')->check())
      {
        return redirect()->route('dashboard');
      }
      return view('login');
    }

    public function postLogin(Request $request)
    {
      $auth = Auth::guard('web')->attemp(['name'=>$request->name, 'password'=>$request->password,'active'=>1]);

      if ($auth)
      {
        return redirect()->route('dashboard');
      }
      return redirect()->route('/');
    }

    public function getLogout()
    {
      Auth::guard('web')->logout();
      return redirect()->route('/');
    }
}

Authen.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\Auth;

class Authen
{
    public function handle($request, Closure $next, $guard = 'web')
    {
      if (!Auth::guard($guard)->check())
      {
        return redirect()->route('/');
      }
        return $next($request);
    }
}

在Kernel.php中添加

'roles' => \App\Http\Middleware\CheckRole::class,
'authen' => \App\Http\Middleware\Authen::class,

Role.php

<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Role extends Model
{
    protected $table = 'roles';
    protected $fillable = 'name';
    protected $primaryKey = 'id';
    public $timestamps = false;

    public function users()
    {
       return $this->hasMany('App\User', 'role_id', 'id');
    }
}

user.php的

<?php

namespace App;

use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;

class User extends Authenticatable
{
    use Notifiable;

    protected $fillable = [
        'name', 'email', 'password', 'active', 'role_id',
    ];

    protected $hidden = [
        'password', 'remember_token',
    ];

    public function role()
    {
        return $this->hasOne('App\Role', 'id', 'role_id');
    }

    private function checkIfUserHasRole($need_role)
    {
        return ($need_role == $this->role->name) ? true : null;
    }

    public function hasRole()
    {
        if (s_array($roles))
        {
            foreach($roles as $need_role)
            {
                if($this->checkIfUserHasRole($need_role))
                {
                    return true;
                }
            }
          }
            else
            {
                return $this->checkIfUserHasRole($roles);
            }
            return false;
        }
}

web.php

<?php

Route::get('/', ['as'=>'/', 'uses'=>'LoginController@getLogin']);
Route::post('/login', ['as'=>'login', 'LoginController@postLogin']);

Route::group(['middleware'=>['authen', 'roles']], function()
             {
               Route::get('/logout', ['as'=>'logout', 'uses'=>'LoginController@getLogout']);
                 Route::get('/dashboard', ['as'=>'dashboard', 'uses'=>'DashboardController@dashboard']);
             });

UsersTableSeeder

<?php

use Illuminate\Database\Seeder;
use App\User;
class UsersTableSeeder extends Seeder
{
    public function run()
    {
        User::create([
          'role_id'=>1,
          'active'=>1,
          'name'=>'James',
          'email'=>'James@yahoo.com',
          'password'=>bcrypt('james'),
          'remember_token'=>str_random(10)
        ]);
    }
}

RolesTableSeeder

<?php

use Illuminate\Database\Seeder;
use App\Role;
class RolesTableSeeder extends Seeder
{
    public function run()
    {
        Role::insert([
          ['name'=>'Admin'],
          ['name'=>'Student'],
          ['name'=>'Teacher']
        ]);
    }
}

为漫长的代码道歉。

Answer 1

您忘记在/ login路由中使用。就像这样

Route::post('/login', ['as'=>'login', 'uses'=>'LoginController@postLogin']);

Answer 2

对于那些来自谷歌的人来说，我的情况是我打错了

    Route::get("document-types", [DocumentTypesController::class], "index");

代替

    Route::get("document-types", [DocumentTypesController::class, "index"]);

Laravel错误反射异常函数不存在

2 个答案: