Symfony 3注册，角色为CollectionType（FOSUserBundle）

Question

I'm new to Symfony and I am trying to create a registration form with the capability to choose a user role.

I used the official documentation to set this up: http://symfony.com/doc/current/bundles/FOSUserBundle/overriding_forms.html

But I got the following error:

My RegistrationType is :

 <?php namespace DevLeaguesBundle\\Form; use Symfony\\Component\\Form\\AbstractType; use Symfony\\Component\\Form\\FormBuilderInterface; use Symfony\\Component\\Form\\Extension\\Core\\Type\\CollectionType; class RegistrationType extends AbstractType { public function buildForm(FormBuilderInterface $builder, array $options) { $builder->add('roles', CollectionType::class, array( 'type' => 'choice', 'options' => array( 'choices' => array( 'ROLE_ADMIN' => 'Admin', ) ) )); } public function getParent() { return 'FOS\\UserBundle\\Form\\Type\\RegistrationFormType'; } public function getBlockPrefix() { return 'devleagues_user_registration'; } public function getName() { return $this->getBlockPrefix(); } } 

Answer 1

You should use ChoiceType Field http://symfony.com/doc/current/reference/forms/types/choice.html

$builder->add('roles', ChoiceType::class, array(
                       'choices' => array(
                           'ROLE_ADMIN' => 'Admin',
                      )
                   )
);