/**
  * initialize module with request datas
  * 
  * @param object request
  * @return void
  */
 function init(&$request, $o_tpl = null, $o_archive = null)
 {
     if (!is_a($o_tpl, "TemplateEngine")) {
         $o_tpl = null;
     }
     parent::init($request, $o_tpl);
     $date = $this->request->getDate();
     if (is_null($this->data)) {
         if (is_null($o_archive)) {
             $o_archive = DataModel::getArchive($this->site, $date, $this->request->getPeriod());
         }
         $this->data = new DataModel($o_archive, $this->request);
     }
     $d = new Date(getDateFromTimestamp(time()));
     if (($this->data->archive->date->get() == $d->get() || isset($this->disableCache)) && is_a($this->tpl, "TemplateEngine")) {
         printDebug("Current date asked is today's date, cache not activated<br>");
         $this->tpl->caching = 0;
     }
 }