CakePHP ACL教程initDB函数警告

Question

I am following http://book.cakephp.org/2.0/en/tutorials-and-examples/simple-acl-controlled-application/part-two.html tutorial and I got a bit slightly different groups (group 4 and 5) 4 is visitors and 5 is admins

    function initDB() {
 10         $group = $this->User->Group;
 11         //Allow admins to everything
 12         $group->id = 5;      
 13         $this->Acl->allow($group, 'controllers');
 14        //^doesnt work
 15        //$this->Acl->allow(array( 'model' => 'Group', 'foreign_key' => 5), 'controllers');
 16        
 17        
 18         $group->id = 4;
 19         $this->Acl->deny($group, 'controllers');
 20         $this->Acl->allow($group, 'controllers/User/login');
 21         $this->Acl->allow($group, 'controllers/User/logout');
 22        /*
 23        $this->Acl->deny(array( 'model' => 'Group', 'foreign_key' => 4), 'controllers');
 24        $this->Acl->allow(array( 'model' => 'Group', 'foreign_key' => 4), 'controllers/User/login');
 25        $this->Acl->allow(array( 'model' => 'Group', 'foreign_key' => 4), 'controllers/User/logout');
 26 */      
 27         
 28         
 29         echo "all done";
 30         exit();
 31     }

but when I run this function I get the following errors

Warning (512): DbAcl::allow() - Invalid node [CORE/Cake/Controller/Component/AclComponent.php, line 387]
Warning (512): DbAcl::allow() - Invalid node [CORE/Cake/Controller/Component/AclComponent.php, line 387]all done

what gives?!

edit - my App Controller looks like this

<?php

class AppController extends Controller {
    public $components = array(
            'Acl',
            'Auth' => array(
                'authorize' => array(
                    'Actions' => array('actionPath' => 'controllers')
                    )   
                ),  
            'Session'
            );  
    public $helpers = array('Html', 'Form', 'Session');

    public function beforeFilter() {
        $this->Auth->actionPath = 'controllers/';
        //Configure AuthComponent
        $this->Auth->loginAction = array('controller' => 'users', 'action' => 'login');
        $this->Auth->logoutRedirect = array('controller' => 'users', 'action' => 'login');
        $this->Auth->loginRedirect = array('controller' => 'images', 'action' => 'index');
        $this->Auth->allow('display');
    }   
}


?>

EDIT 2: Full Warning looks like this

Warning (512): DbAcl::allow() - Invalid node [CORE/Cake/Controller/Component/AclComponent.php, line 387]
Code Context
DbAcl::allow() - CORE/Cake/Controller/Component/AclComponent.php, line 387
AclComponent::allow() - CORE/Cake/Controller/Component/AclComponent.php, line 128
UsersController::initDB() - APP/Controller/UsersController.php, line 20
ReflectionMethod::invokeArgs() - [internal], line ??
Controller::invokeAction() - CORE/Cake/Controller/Controller.php, line 473
Dispatcher::_invoke() - CORE/Cake/Routing/Dispatcher.php, line 107
Dispatcher::dispatch() - CORE/Cake/Routing/Dispatcher.php, line 89
[main] - APP/webroot/index.php, line 96

Let me know if you want me to post up any other code.

Answer 1

According to the warning, and to the fact you're calling 3 times $this->Acl->allow() and once $this->Acl->deny() but seem to get only 2 warnings, I assume that the lines that give a warning are the following:

$this->Acl->allow($group, 'controllers/User/login');
$this->Acl->allow($group, 'controllers/User/logout');

I don't use AclExtras to synchronize the acos table with the existing actions, but AFAIK when checking the permissions the AclComponent requires the controller aliases in the acos table to be pluralized. So I assume that your acos table doesn't contain any record with alias User but a record with alias Users.

This would explain why you don't have any node in your acos table that can be identified by 'controllers/User/login' nor by 'controllers/User/logout'.

If my assumptions are correct, the following code would work:

$this->Acl->allow($group, 'controllers/Users/login');
$this->Acl->allow($group, 'controllers/Users/logout');