/**
  * @Route("/{id}", name="id")
  * @Request({"id":"int", "category_id":"int"})
  */
 public function fileAction($id = 0, $category_id = 0)
 {
     /** @var File $file */
     if (!($file = File::where(['id = ?', 'status = ?'], [$id, '1'])->where(function ($query) {
         return $query->where('roles IS NULL')->whereInSet('roles', App::user()->roles, false, 'OR');
     })->first())) {
         App::abort(404, __('File not found.'));
     }
     $file->setActiveCategory($category_id);
     App::trigger('bixie.prepare.file', [$file, App::view()]);
     $file->content = App::content()->applyPlugins($file->content, ['file' => $file, 'markdown' => $file->get('markdown')]);
     $previous = File::getPrevious($file);
     $next = File::getNext($file);
     /** @var Category $category */
     if ($category_id && !($category = Category::where(['id = ?', 'status = ?'], [$category_id, '1'])->where(function ($query) {
         return $query->where('roles IS NULL')->whereInSet('roles', App::user()->roles, false, 'OR');
     })->related('files')->first())) {
         App::abort(404, __('Category not found.'));
     }
     if ($breadcrumbs = App::module('bixie/breadcrumbs')) {
         if ($category_id) {
             $cat = $category;
             $crumbs = [['title' => $category->title, 'url' => $category->getUrl()]];
             while ($parent_id = $cat->parent_id) {
                 if ($cat = $cat->find($parent_id, true)) {
                     $crumbs[] = ['title' => $cat->title, 'url' => $cat->getUrl()];
                 }
             }
             foreach (array_reverse($crumbs) as $data) {
                 $breadcrumbs->addUrl($data);
             }
         }
         //add file
         $breadcrumbs->addUrl(['title' => $file->title, 'url' => $file->getUrl()]);
     }
     return ['$view' => ['title' => __($file->title), 'name' => 'bixie/download/file.php'], 'download' => $this->download, 'config' => $this->download->config(), 'previous' => $previous, 'next' => $next, 'file' => $file, 'node' => App::node()];
 }