title: NotFoundHttpException at new route Laravel 4
body: <p>i see there are similar questions but dont find any clue of me problem.</p>
  
  <p>I created a basic users system, to manage groups, permissions, users, etc. The basic routes like create, edit, delete, index are working.</p>
  
  <p>Now im trying to add one more function to UserController, to manage the users groups in a simple view.</p>
  
  <pre><code>Route::group(array('prefix' =&gt; 'admin'), function()
  {
      Route::resource('groups', 'GroupController');
      Route::resource('users', 'UserController');
  });
  </code></pre>
  
  <p>The function in controller:</p>
  
  <pre><code>public function groups($id)
  {
      $user = Sentry::findUserByID($id);
  
      $groups = $user-&gt;getGroups();
  
      return View::make('users.show')
          -&gt;with('groups', $groups);
  }
  </code></pre>
  
  <p>And the users/groups.blade.php:</p>
  
  <pre><code>@extends('layouts.admin')
  
  @section('content')
  &lt;header id="page-title"&gt;
      &lt;h1&gt;User Groups&lt;/h1&gt;
  &lt;/header&gt;
  
  &lt;!-- if there are creation errors, they will show here --&gt;
  {{ HTML::ul($errors-&gt;all()) }}
  
  {{ Form::open(array('url' =&gt; 'admin/users/save_groups')) }}
  
  &lt;div class="form-group"&gt;
  
  &lt;/div&gt;
  
  {{ Form::submit('Create!', array('class' =&gt; 'btn btn-primary')) }}
  {{ Form::button('Cancel', array('class' =&gt; 'btn btn-danger')) }}
  
  {{ Form::close() }}
  
  @stop
  </code></pre>
  
  <p>I go to url "<code>mysite/admin/users/2/groups</code>", and im getting the <code>NotFoundHttpException</code>, i try many ways to make it works and dont know what is happening.</p>
  
  <p>I assume it will works like "<code>mysite/admin/users/2/edit</code>", but if i test the show function, it only is "<code>mysite/admin/users/2</code>", dont need the show action to know is that function, maybe i missed something.</p>