'Error: Call to a member function allow() on a non-object' in CakePHP 3 AuthComponent

Question

根据 CakePHP 看起来有点混乱而且不太直接，我创建了一个基本的身份验证逻辑，但是，我似乎无法加载 Auth 组件。

这是来自 AppController.php:

的代码部分

public function initialize()
{
    parent::initialize();

    $this->loadComponent('RequestHandler');
    $this->loadComponent('Flash');
    $this->loadComponent('Auth', [
            'authenticate' => ['Form' => ['fields' => ['username' => 'email', 'password' => 'password']]],
            'loginAction' => ['controller' => 'Users', 'action' => 'login'],
            'loginRedirect' => ['controller' => 'Groups', 'action' => 'index'],
            'logoutRedirect' => ['controller' => 'Users', 'action' => 'login']
    ]);  
}


//Allow basic views

public function beforeFilter(Event $event)
{
    $this->Auth->allow(['index', 'view', 'display']);
}

现在无论我运行使用哪个控制器或操作，我总是收到以下错误：

Error: Call to a member function allow() on a non-object

引用了以下行：

$this->Auth->allow(['index', 'view', 'display']);

它必须是直截了当的事情，但我在文档中找不到它，因此非常感谢任何帮助或指导。

Answer 1

检查您的子控制器的方法 initialize() 是否正在调用父方法。

class MyController extends AppController
{
    public function initialize() {
        parent::initialize();
        //rest of code
    }
}

Answer 2

我还没有创建 Template/Users/login.ctp 模板时就有了这个

只有在检查

获得的堆栈跟踪后才设法找出答案

$e = new \Exception('How did I got here anyway?');
debug($e->getTraceAsString());

屈服

#5 vendor/cakephp/cakephp/src/Error/ExceptionRenderer.php(318): Cake\Controller\Controller->render('missingTemplate')

'Error: Call to a member function allow() on a non-object' in CakePHP 3 AuthComponent

'Error: Call to a member function allow() on a non-object' in CakePHP 3 AuthComponent

authorization

overriding

cakephp

cakephp-3.0