public function index()
 {
     $this->wf->ProfileIn(__METHOD__);
     $this->wg->Out->setPageTitle(wfMsg('managewikiahome'));
     if (!$this->checkAccess()) {
         $this->forward('ManageWikiaHome', 'onWrongRights');
         return false;
     }
     $this->setVal('slotsInTotal', WikiaHomePageHelper::SLOTS_IN_TOTAL);
     //wikis with visualization selectbox
     $visualizationLang = $this->wg->request->getVal(self::WHST_VISUALIZATION_LANG_VAR_NAME, $this->wg->contLang->getCode());
     $visualizationLang = substr(strtolower($visualizationLang), 0, 2);
     $this->visualizationLang = $visualizationLang;
     $this->visualizationWikisData = $this->helper->getVisualizationWikisData();
     $this->currentPage = $this->request->getVal('page', 1);
     $this->corpWikiId = $this->visualizationWikisData[$this->visualizationLang]['wikiId'];
     //verticals slots' configuration
     /* @var $this->helper WikiaHomePageHelper */
     $videoGamesAmount = $this->request->getVal('video-games-amount', $this->helper->getNumberOfVideoGamesSlots($this->visualizationLang));
     $entertainmentAmount = $this->request->getVal('entertainment-amount', $this->helper->getNumberOfEntertainmentSlots($this->visualizationLang));
     $lifestyleAmount = $this->request->getVal('lifestyle-amount', $this->helper->getNumberOfLifestyleSlots($this->visualizationLang));
     $hotWikisAmount = $this->request->getVal('hot-wikis-amount', $this->helper->getNumberOfHotWikiSlots($this->visualizationLang));
     $newWikisAmount = $this->request->getVal('new-wikis-amount', $this->helper->getNumberOfNewWikiSlots($this->visualizationLang));
     if ($this->request->wasPosted()) {
         //todo: separate post request handling
         //todo: move validation from saveSlotsConfigInWikiFactory() to helper
         $total = intval($videoGamesAmount) + intval($entertainmentAmount) + intval($lifestyleAmount);
         if ($total !== WikiaHomePageHelper::SLOTS_IN_TOTAL) {
             $this->setVal('errorMsg', wfMsg('manage-wikia-home-error-invalid-total-no-of-slots', array($total, WikiaHomePageHelper::SLOTS_IN_TOTAL)));
         } elseif ($this->isAnySlotNumberNegative($videoGamesAmount, $entertainmentAmount, $lifestyleAmount)) {
             $this->setVal('errorMsg', wfMsg('manage-wikia-home-error-negative-slots-number-not-allowed'));
         } else {
             $this->saveSlotsConfigInWikiFactory($this->corpWikiId, $visualizationLang, array(WikiaHomePageHelper::VIDEO_GAMES_SLOTS_VAR_NAME => $videoGamesAmount, WikiaHomePageHelper::ENTERTAINMENT_SLOTS_VAR_NAME => $entertainmentAmount, WikiaHomePageHelper::LIFESTYLE_SLOTS_VAR_NAME => $lifestyleAmount));
         }
     }
     $this->setVal('videoGamesAmount', $videoGamesAmount);
     $this->setVal('entertainmentAmount', $entertainmentAmount);
     $this->setVal('lifestyleAmount', $lifestyleAmount);
     $this->setVal('hotWikisAmount', $hotWikisAmount);
     $this->setVal('newWikisAmount', $newWikisAmount);
     $this->response->addAsset('/extensions/wikia/SpecialManageWikiaHome/css/ManageWikiaHome.scss');
     $this->response->addAsset('/extensions/wikia/SpecialManageWikiaHome/js/ManageWikiaHome.js');
     F::build('JSMessages')->enqueuePackage('ManageWikiaHome', JSMessages::EXTERNAL);
     $this->wf->ProfileOut(__METHOD__);
 }