无法加载类型提交symfony 3

Question

I'm a newbie on Symfony and I have some problems with the 3thd version. I created a formType with the console called userType. Everything is ok but I can't add a submit button. The old way ->add('save','submit') is not working and I think it's about the version of symfony. So, here is my code :

 <?php namespace MyBundle\\UserBundle\\Form; use Symfony\\Component\\Form\\AbstractType; use Symfony\\Component\\Form\\FormBuilderInterface; use Symfony\\Component\\OptionsResolver\\OptionsResolver; class userType extends AbstractType { /** * @param FormBuilderInterface $builder * @param array $options */ public function buildForm(FormBuilderInterface $builder, array $options) { $builder ->add('name') ->add('nickname') //->add('dateOfBirth', 'date') ->add('sex') ->add('country') ->add('city') ->add('email') ->add('password') ->add('save', SubmitType::class, array('label' => 'Create Task')); //here is the problem } /** * @param OptionsResolver $resolver */ public function configureOptions(OptionsResolver $resolver) { $resolver->setDefaults(array( 'data_class' => 'MyBundle\\UserBundle\\Entity\\user\u0026#39; )); } } 

Have you got an idea about how to resolve that problem ? Sorry if I'm posting in the wron section :-).

Thank's for having read me,

Axel

Answer 1

You need to use correct namespace:

namespace MyBundle\UserBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Form\Extension\Core\Type\SubmitType; // ← this line

Answer 2

As stated on page 27 of the book 'Best practices for Symfony 3' you can find that this is not changed.

Form Button Configuration

Form classes should try to be agnostic to where they will be used. This makes them easier to re-use later. Add buttons in the templates, not in the form classes or the controllers. Since Symfony 2.3, you can add buttons as fields on your form. This is a nice way to simplify the template that renders your form. But if you add the buttons directly in your form class, this would effectively limit the scope of that form.

$builder
   // ...
   ->add('save', SubmitType::class, array('label' => 'Create Post'))
;