public function user_navigation()
 {
     $view = new XView(Navigation_View);
     $view->title = 'Craiglist | ' . 'Main Page';
     $model = new CategoryModel();
     $view->categories = $model->getCategoryTree(-1);
     $model = new ArticleModel();
     $view->total_groups = ceil($model->getCount() / $this->items_per_group);
     $this->__common($view);
 }
 public function article($substring)
 {
     if ($substring == NULL) {
         return;
     }
     $view = new XView(Article_List);
     $view->title = 'Searching...';
     $view->articles = ArticleModel::getArticlesByTitle($substring);
     $view->articles_number = count($view->articles);
     $this->__common($view);
 }
 public function remove($id)
 {
     ArticleModel::removeArticle($id);
     $this->view($id);
     //	header('Location:' . SERVER_ROOT_URL . '/article/view/' . $id );
 }