/**
  * Load all filters provided by the current extension into the TwigRenderizer
  *
  * @param TwigRenderizer $renderizer Twig renderizer
  */
 public function load(TwigRenderizer $renderizer)
 {
     $filters = $this->extension->getFilters();
     foreach ($filters as $filter) {
         $name = $filter->getName();
         $callable = $filter->getCallable();
         $options = array('needs_environment' => $filter->needsEnvironment());
         $renderizer->addTwigFilter($name, $callable, $options);
     }
 }
 public function getFilters()
 {
     return array('sm_absolutize' => new \Twig_Filter_Method($this, 'getAbsoluteUrl'), 'sm_format_date' => new \Twig_Filter_Method($this, 'getFormattedDate'));
     return parent::getFilters();
 }