how to set and save data in database in typo3

Question

I have this code of the controller's index action.

public function indexAction() {
            $this->initContentObject();
            $titleforSocial = $GLOBALS['TSFE']->page['title'];
            $uidforSocial = $GLOBALS['TSFE']->page['uid'];
            $pidforSocial = $GLOBALS['TSFE']->page['pid'];
            echo "title: ".$titleforSocial . " uid: ". $uidforSocial . " pid:" .$pidforSocial;

            $elementUid = $this->cObj->data['_LOCALIZED_UID'] ? $this->cObj->data['_LOCALIZED_UID'] : $this->cObj->data['uid'];
            $buttonResults = $this->contentRepository->findByIdentifier($elementUid);
            $pagesResults = $this->pagesRepository->findByIdentifier($elementUid);
            $button_text = $buttonResults->getButtontext();
            $page_title = $pagesResults->setTitle('testing...');
            var_dump($button_text);
            $pagesResultsz = $this->pagesRepository->findByIdentifier($elementUid);
            var_dump($pagesResultsz);
            exit;
            $button_text = $this->cObj->data['buttonText'];
            $this->view->assign("button_text", $button_text);
    }

my main question is that how to save data to the database using set method of model. the current one sets 'testings...' when I dump but doesn't save it to database. I am using typo3 7.6

Answer 1

You have to pass your object to repository which saves it to database. Method which you need to use differs depends on object already exists or it's new one.

For new object you have to use add() method:

$this->pagesRepository->add($pagesResults);

And for existing one use update() :

$this->pagesRepository->update($pagesResults);