Auth不工作在其他模块laravel4 creolab

嗨，我创建了一个项目在HMVC架构与creolab模块在laravel 4这里
比如我把项目分成了3个模块比如这里的

--module--
auth
shop
content

这个场景中用户必须先登录认证模块
之后，他们可以访问剩下的2个模块(商店&内容)

当我尝试在模块商店或内容中验证保护路由时，如以下示例

Authenticating Group */
Route::group(array('before' => 'auth'), function() {
   Route::get('shop',  array(
    'as' => 'shop',      
    'uses' => 'App'Modules'Shop'Controllers'ShopController@getShop'
  ));
});

我不能访问它，虽然我已经成功登录模块Auth
我已经确认我成功登录，返回字符串像这样

我认为问题在这里
在我的模块帐户中，我的accountController包含如下脚本

public function postLogin() {
    $validator = Validator::make(Input::all(), array(
        'username' => 'required',
        'password' => 'required'
    ));
    if($validator->fails()) {
        return  Redirect::route('login.post')
                ->withErrors($validator);
    } else {
        $auth = Auth::attempt(array(
            'username' => Input::get('username'),
            'password' => Input::get('password')
        ));
        if($auth) {
            return "login success";
            // return Redirect::intended('shop');
        }
        else {
            return  Redirect::route('login')
                    ->with('global', 'Email or Password Not Match');
        }
    }
}

当我返回简单字符串(禁用重定向)时，我在屏幕
中得到login success，表明我已经成功登录，但当我主动重定向到另一个模块时，我被推回登录页面

在登录页面中使用这个简单的脚本检查授权状态

@if (Auth::check())
   {{ login }}
@else
   {{ "not login "}}
@endif

和未登录文本
有人能帮帮我吗?

@update

public function postLogin() {
    $validator = Validator::make(Input::all(), array(
        'username' => 'required',
        'password' => 'required'
    ));
    if($validator->fails()) {
        return  Redirect::route('login.post')
                ->withErrors($validator);
    } else {
        $auth = Auth::attempt(array(
            'username' => Input::get('username'),
            'password' => Input::get('password')
        ));
        if($auth) {
            return Redirect::intended('shop');
        }
        else {
            return  Redirect::route('login')
                    ->with('global', 'Email or Password Not Match');
        }
    }
}

@2nd更新 shop模块路由

<?php
/* Authenticating Group */
Route::group(array('before' => 'auth'), function() {
  Route::get('shop',  array(
    'as' => 'shop',      
    'uses' => 'App'Modules'Shop'Controllers'ShopController@getShop'
  ));
  Route::post('shop',  array(
    'as' => 'shop.post',      
    'uses' => 'App'Modules'Shop'Controllers'ShopController@postShop'
  ));
  Route::post('shop-delete',  array(
    'as' => 'shop.delete',      
    'uses' => 'App'Modules'Shop'Controllers'ShopController@postShopDelete'
  ));
});

/*
|--------------------------------------------------------------------------
| Authentication Filters
|--------------------------------------------------------------------------
|
| The following filters are used to verify that the user of the current
| session is logged into this application. The "basic" filter easily
| integrates HTTP Basic authentication for quick, simple checking.
|
*/
Route::filter('auth', function()
{
   if (Auth::guest())
   {
      if (Request::ajax())
      {
        return Response::make('Unauthorized', 401);
      }
      else
      {
        return Redirect::guest('login');
      }
  }
});