Встроенная форма CollectionType обновляет все объекты, а не обновляет одну

Question

У меня есть форма CollectionType, которая содержит коллекцию из множества EditAnnouncementType, которые сопоставляются с классом данных Announcement.php. I have one EditAnnouncementType for each existing Объявление . The user can open up a window to edit a single announcement, which displays the EditAnnouncementType`.

Моя проблема заключается в том, что при изменении одного объявления после выполнения кода $editForm->handleRequest($request); текст других объявлений заменяется старым текстом отредактированного объявления. Однако ни у одной другой отредактированной черты нет этой проблемы, только текст.

Тип коллекции

class AnnouncementEditCollectionType extends AbstractType
{
    /**
     * @param FormBuilderInterface $builder
     * @param array                $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('announcements', CollectionType::class,
            [
                'entry_type' => EditAnnouncementType::class,
                'entry_options' => ['label' => false],
                'label_attr' =>
                    [
                        'class' => 'sr-only'
                    ]
            ]);
    }

    /**
     * @param OptionsResolver $resolver
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults([
            'data_class' => AnnouncementManager::class
        ]);
    }
}

EditAnnouncementType

class EditAnnouncementType extends AbstractType
{
    /**
     * @param FormBuilderInterface $builder
     * @param array                $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('save', SubmitType::class,
                [
                    'label' => 'Save changes',
                    'attr' => ['class' => 'btn btn-primary submit-edit announcementEditButton']
                ])

            ->add('content', TextareaType::class,
                [
                'attr' =>
                    [
                        'class' => 'form-control announcement-text',
                            'rows' => '5',
                            'name' => 'content',
                            'maxlength' => '2000'
                    ],
                    'required' => true
                ])

            ->add('category', ChoiceType::class,
                [
                    'choices' =>
                        [
                            'info_type' => 1,
                            'star_type' => 2,
                            'alert_type' => 3,
                            'lightbulb_type' => 4,
                            'event_type' => 5,
                            'statement_type' => 6,
                            'cat_type' => 7,
                            'hands_type' => 8
                        ],
                    'expanded' => true,
                    'multiple' => false,
                    'required' => true,
                    'label_attr' =>
                        [
                            'class' => 'sr-only'
                        ]
                ])
// can probably ignore this part
            ->add('id', HiddenType::class)
            ->add('deleted', HiddenType::class, ['data' => false])
            ->add('displayed', HiddenType::class)
            ->add('employees', HiddenType::class)
            ->add('students', HiddenType::class)

            ->add('audience', ChoiceType::class,
                [
                  'choices' =>
                      [
                          'Students: anybody with a student level field populated' => 'students',
                          'Employees: anybody with an employee ID number' => 'employees'
                      ],
                  'expanded' => true,
                  'required' => true,
                  'multiple' => true
                ]);
    }

    /**
     * @param OptionsResolver $resolver
     */
    public function configureOptions (OptionsResolver $resolver)
    {
        $resolver->setDefaults([
            'data_class' => Announcement::class
        ]);
    }
}

контроллер

//set the announcements from the DB into the AnnouncementManager to populate the editForm
        $result = $this->announcementRepository->findByNotDeletedIdAsKey();
        $this->announcementManager->setAnnouncements($result);

        $editForm = $this->createForm(AnnouncementEditCollectionType::class, $this->announcementManager);

        $editForm->handleRequest($request);

        // Check each embedded edit form to see if the submit button for that form was clicked. If clicked,
        // call the EditAnnouncementAction Method
       foreach ($editForm->get('announcements') as $editAnnouncementForm) {
            if ($editAnnouncementForm->get('save')->isClicked() and $editAnnouncementForm->isValid()) {
                $announcementToEdit = $editAnnouncementForm->getData();
                return $this->editAnnouncementAction($announcementToEdit);

                //$this->entityManager->persist($announcementToEdit);
                //$this->entityManager->flush();
            }
        }