在表单提交后保存实体而不保留

Question

I have a Form with 3 Layers.

The built in validation is somehow not triggered through all 3 levels. Therefore I have to check manually for Errors on the third level. If I find an error, the entity with the error is not persisted. A flush is always triggered at the end of the loop. Unfortunately even without being persisted, some invalid entities are saved in the database. Here is my Controller for it:

    $form = $this->createForm(new GameListType(), $betRound);

    $request = $this->getRequest();
    if ($request->getMethod() == 'POST') {
        $form->bind($request);
        $betRound = $form->getData();
        if ($form->isValid()) {
            foreach ($betRound->getGames() as $game) {
                if ($game->hasBet()) {
                    $bet = $game->getBet();
                    // Filter are used during select
                    // , but dont work for inserts
                    // should work in this current context!
                    $bet->setGame($game);
                    $bet->setBetRound($betRound);
                    $bet->setUser($user);

                    $validator = $this->container->get('validator');
                    $errors = $validator->validate($bet);
                    if (count($errors) == 0) {
                        print($bet. ' got persisted'); <-- never triggered
                        $em->persist($bet);
                    } else {
                        // Manual Error Handling 
                        // (no cascade Validation to third level
                        foreach ($errors as $violation) {
                            $form->addError(new FormError(
                                                    $violation->getMessageTemplate(),
                                                    $violation->getMessageParameters(),
                                                    $violation->getMessagePluralization()
                                    ));
                        }
                    }
                }
            } // foreach ($betRound->getGames() as $game)
            $em->flush();

            if(!$form->hasErrors()){
                return $this->redirect($this->generateUrl('betround_show', 
                        array('id' => $betRound->getId())
                        ));
            }
        }

The persist operation is never triggered, but the invalid $bet entities are still saved in the database.

Answer 1

Check to see if you have a cascade option on the relation between game and bet.

Is it really persist that is the problem or is it update? Are the bets already existing and you just don't want to update your changes if the validation fails? If so, what you need to do is to undo the changes when validation fails with $em->refresh($bet);