Symfony 3：在表单验证中忽略了GroupSequence验证组

Question

I would like to validate a form using group validation and therefore I defined two validation groups. The second group should only be validated if the first group does not already cause violations. So I did this:

        $form = $this->createFormBuilder(null,array('validation_groups' => new GroupSequence(array('group1','group2'))))
        ->add('email', EmailType::class,array('constraints' => array(
            new Assert\Email(array('groups' => array('group1'))),
            new Assert\NotBlank(array('groups' => array('group1'))),
            new CustomAssert\AlreadyRegistered(array('groups' => array('group2'))))))
        ->add('submit',SubmitType::class,array())
        ->getForm();

But apparently none of the constraints are validated, the form is valid no matter what I enter in the email field.

What's wrong?

Answer 1

According to the 3.2 documentation you don't need to initiate a new GroupSequence object under the validation_groups. Try this:

    $form = $this->createFormBuilder(null, array(
        'validation_groups' => array('group1','group2')
    ))
    ->add(
        'email', 
        EmailType::class,
        array(
            'constraints' => array(
                new Assert\Email(array('groups' => array('group1'))),
                new Assert\NotBlank(array('groups' => array('group1'))),
                new CustomAssert\AlreadyRegistered(array('groups' => array('group2')))
    )))
    ->add(
        'submit',
        SubmitType::class
    )
    ->getForm();

Reference: http://symfony.com/doc/current/form/validation_groups.html