/**
  * Read file and returns an array filled up with its' content.
  * 
  * @return array of objects
  */
 protected function read()
 {
     $result = array();
     $path = $this->path;
     if (!is_readable($path)) {
         return array();
     }
     $items = \Import::csv_reader($path);
     foreach ($items as $item) {
         $item = (object) $item;
         $title = isset($item->title) ? trim($item->title) : '';
         $content = isset($item->content) ? trim($item->content) : '';
         $type = isset($item->type) ? trim($item->type) : '';
         $title = \Security::remove_XSS($title);
         $content = \Security::remove_XSS($content);
         $type = \Security::remove_XSS($type);
         $is_blank_line = empty($title) && empty($content) && empty($type);
         if ($is_blank_line) {
             continue;
         }
         $type = CourseDescriptionType::repository()->find_one_by_name($type);
         $type_id = $type ? $type->id : 0;
         $description = CourseDescription::create();
         $description->title = $title;
         $description->content = $content;
         $description->description_type = $type_id;
         $result[] = $description;
     }
     return $result;
 }