public function execute()
 {
     global $CFG;
     require_once $CFG->dirroot . '/plagiarism/urkund/lib.php';
     $plagiarismsettings = \plagiarism_plugin_urkund::get_settings();
     if (!empty($plagiarismsettings)) {
         urkund_get_scores($plagiarismsettings);
     }
 }
 /**
  * Called by admin/cron.php.
  *
  */
 public function cron()
 {
     global $CFG;
     // Do any scheduled task stuff.
     urkund_update_allowed_filetypes();
     // Weird hack to include filelib correctly before allowing use in event_handler.
     require_once $CFG->libdir . '/filelib.php';
     if ($plagiarismsettings = $this->get_settings()) {
         urkund_get_scores($plagiarismsettings);
     }
 }