How to change the text in a form submit button inside a controller

[itrascastro]

The documentation explains how to do it in the template:

http://symfony.com/doc/current/reference/forms/types/submit.html#label

but how can we do it from the controller?

I have a Form Class where the submit button is created with a 'label'. Now I need to customize that label from different controller actions.

[ogizanagi]

Same as for any form type options:

$builder->add('save', ButtonType::class, array(
    'label' => 'Click me',
));

I'm not sure it should be added here, as it's always the same for any options.

[itrascastro]

I have a Form Class where the submit button is created with a 'label'. Now I need to customize that label from different controller actions.

Is there something like setLabel()?

[ogizanagi]

Unfortunately you cannot change options that way. Your form type should allow to configure this option instead:

# AppBundle\Form\Type\FooType.php

// [...]

class FooType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        // [...]

        $builder->add('save', ButtonType::class, array(
            'label' => $options['save_button_label'],
        ));
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'save_button_label' => 'Click me',
        ));
    }
}

# AppBundle\Controller\FooController.php

// [...]

public function politeFooAction()
{
    // [...]

    $this->createForm(FooType::class, $data, array(
        'save_button_label' => 'Click me, please',
    ));
}

Or, you should not add the button from your form type, but from your Controller:

# AppBundle\Controller\FooController.php

// [...]

public function politeFooAction()
{
    // [...]

    $formBuilder = $this->get('form.factory')->createBuilder($FooType::class, $data)
    $formBuilder->add('save', ButtonType::class, array(
        'label' => 'Click me, please',
    ));
    $form = $formBuilder->getForm();
}

[itrascastro]

Thank you