function define($context)
 {
     if (!is_array($context)) {
         $context = array($context);
     }
     array_unshift($context, 'ngg_attach_to_post');
     parent::define($context);
     $this->add_mixin('Mixin_Attach_To_Post');
     $this->add_mixin('Mixin_Attach_To_Post_Display_Tab');
     $this->implement('I_Attach_To_Post_Controller');
 }
 function define()
 {
     parent::define(NGG_PRO_PRICELIST_SOURCE_PAGE);
 }