title: Where can I put laravel 4 filter classes?
body: <p>In laravel 4, you can create filter classes instead of putting the entire filter inside a closure -- great. But do these filters have to be entirely in the <code>app/filters.php</code> or <code>app/routes.php</code>?</p>
  
  <p>Generally I like to do one file per class, but I imagine there's something better to do then a bunch of includes in the filters.php file. Where would you put these for laravel to find them automatically? For example:</p>
  
  <pre><code>Route::filter('Thing', 'ThingFilter');
  
  # can I put this in its own file and have laravel automatically use it?
  class ThingFilter {
      function filter() { ... }
  }
  </code></pre>