Pimcore\Model\Redirect::setStatusCode PHP Method

    public function setStatusCode($statusCode)
    {
        if ($statusCode) {
            $this->statusCode = $statusCode;
        }
        return $this;
    }

 public function saveAction()
 {
     if ($this->getParam("id")) {
         $page = Document\Page::getById($this->getParam("id"));
         $page = $this->getLatestVersion($page);
         $page->setUserModification($this->getUser()->getId());
         if ($this->getParam("task") == "unpublish") {
             $page->setPublished(false);
         }
         if ($this->getParam("task") == "publish") {
             $page->setPublished(true);
         }
         $settings = array();
         if ($this->getParam("settings")) {
             $settings = \Zend_Json::decode($this->getParam("settings"));
         }
         // check for redirects
         if ($this->getUser()->isAllowed("redirects") && $this->getParam("settings")) {
             if (is_array($settings)) {
                 $redirectList = new Redirect\Listing();
                 $redirectList->setCondition("target = ?", $page->getId());
                 $existingRedirects = $redirectList->load();
                 $existingRedirectIds = array();
                 foreach ($existingRedirects as $existingRedirect) {
                     $existingRedirectIds[$existingRedirect->getId()] = $existingRedirect->getId();
                 }
                 for ($i = 1; $i < 100; $i++) {
                     if (array_key_exists("redirect_url_" . $i, $settings)) {
                         // check for existing
                         if ($settings["redirect_id_" . $i]) {
                             $redirect = Redirect::getById($settings["redirect_id_" . $i]);
                             unset($existingRedirectIds[$redirect->getId()]);
                         } else {
                             // create new one
                             $redirect = new Redirect();
                         }
                         $redirect->setSource($settings["redirect_url_" . $i]);
                         $redirect->setTarget($page->getId());
                         $redirect->setStatusCode(301);
                         $redirect->save();
                     }
                 }
                 // remove existing redirects which were delete
                 foreach ($existingRedirectIds as $existingRedirectId) {
                     $redirect = Redirect::getById($existingRedirectId);
                     $redirect->delete();
                 }
             }
         }
         // check if settings exist, before saving meta data
         if ($this->getParam("settings") && is_array($settings)) {
             $metaData = array();
             for ($i = 1; $i < 30; $i++) {
                 if (array_key_exists("metadata_idName_" . $i, $settings)) {
                     $metaData[] = array("idName" => $settings["metadata_idName_" . $i], "idValue" => $settings["metadata_idValue_" . $i], "contentName" => $settings["metadata_contentName_" . $i], "contentValue" => $settings["metadata_contentValue_" . $i]);
                 }
             }
             $page->setMetaData($metaData);
         }
         // only save when publish or unpublish
         if ($this->getParam("task") == "publish" && $page->isAllowed("publish") or $this->getParam("task") == "unpublish" && $page->isAllowed("unpublish")) {
             $this->setValuesToDocument($page);
             try {
                 $page->save();
                 $this->saveToSession($page);
                 $this->_helper->json(array("success" => true));
             } catch (\Exception $e) {
                 \Logger::err($e);
                 $this->_helper->json(array("success" => false, "message" => $e->getMessage()));
             }
         } else {
             if ($page->isAllowed("save")) {
                 $this->setValuesToDocument($page);
                 try {
                     $page->saveVersion();
                     $this->saveToSession($page);
                     $this->_helper->json(array("success" => true));
                 } catch (\Exception $e) {
                     \Logger::err($e);
                     $this->_helper->json(array("success" => false, "message" => $e->getMessage()));
                 }
             }
         }
     }
     $this->_helper->json(false);
 }