title: DB::query() Error "Class 'Model\DB' not found"
body: <p>Hi I'm kinda new to FuelPHP and right now I'm studying some syntax on how to retrieve data using DB::query() builder and I have encountered an error using this code.</p>
  
  <p>Controller:</p>
  
  <pre><code>use \Model\Welcome
  class Controller_Welcome extends Controller
  {
  public function action_index()
  {
     print_r(Welcome::getuser());
  }
  }
  </code></pre>
  
  <p>Model:</p>
  
  <pre><code>namespace Model;
  class Welcome extends \Model {
  public static function getuser()
  {
  $query = DB::query("SELECT * FROM `users`");
  return $query-&gt;execute();
  }
  
  }
  </code></pre>
  
  <p>And it keeps prompting an error saying "ErrorException [ Fatal Error ]:
  Class 'Model\DB' not found" what does it mean by 'Model\DB' not found? what did I miss? or what is missing with my code?</p>
  
  <p>And I already configured the database settings on the /config/development/db.php</p>
  
  <p>Your help is much appreciated.
  Thanks in advance.</p>