Symfony3: set Custom FormType "name"/"blockPrefix"

Question

I have a Formtype. In this Formtype I get over the options-Array in the buildForm function a key additionalName. I want to add this value to the FormType Name (in Symfony3 BlockPrefix). But how can I set this?

class AdultType extends AbstractType
{    
    /**
     * @param FormBuilderInterface $builder
     * @param array $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $additionalName = $options['additionalName'];

        $builder
            ->add('account', TextType::class,array(
                'label' => 'account',
                'required' => false,
            ))

        ;
    }

    /**
     * @param OptionsResolver $resolver
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'My\Bundle\WebsiteBundle\Model\Adult',
            'csrf_protection' => true,
            'cascade_validation' => true,
            'name' => ""
        ));
    }

    /**
     * @return string
     */
    public function getBlockPrefix()
    {
        //Here I need the $options['additionalName']
        return 'my_bundle_websitebundle_adult_'.$options['additionalName'];
    }

I tried allready to set a variable private $additionalName; on the top of the class, set it in the buildForm function and get access to it with $this->additionalName in the getBlockPrefix Function. But the value in getBlockPrefix is empty. SO I think the getBlockPrefix is called before the buildForm.

The Type is beeing called from another form:

$builder->add('adult', AdultType::class, array(
                        'additionalName' => $options['name']
                    ));

Thanks for any help!

What is the actual use case that you want to solve by dynamically changing the block prefix? — xabbuh
– xabbuh, Commented Nov 24, 2016 at 14:54

Delphine · Accepted Answer · 2016-11-25 15:57:00Z

I suggest you to add a property to your FormType like that :

class AdultType extends AbstractType
{    
    protected $_additionalName;

    public function __construct($additionalName= ''){
        $this->_additionalName = $additionalName;
    }


    /**
     * @param FormBuilderInterface $builder
     * @param array $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $additionalName = $options['additionalName'];

        $builder
            ->add('account', TextType::class,array(
                'label' => 'account',
                'required' => false,
            ))

        ;
    }

    /**
     * @param OptionsResolver $resolver
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'My\Bundle\WebsiteBundle\Model\Adult',
            'csrf_protection' => true,
            'cascade_validation' => true,
            'name' => ""
        ));
    }

    /*
     * @return string
     */
    public function getBlockPrefix()
    {
        //Here I need the $options['additionalName']
        return 'my_bundle_websitebundle_adult_'.$this->_additionalName;
    }

EDIT :

Arf.. I think it is only available for Symfony 2 before (2.8)..

Rawburner · Accepted Answer · 2016-11-24 12:13:51Z

-1

Try this:

class AdultType extends AbstractType
{
    protected $_additionalName;

    /**
     * @param FormBuilderInterface $builder
     * @param array $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $this->_additionalName = $options['additionalName'];

        $builder
            ->add('account', TextType::class,array(
                'label' => 'account',
                'required' => false,
            ))

        ;
    }

    /**
     * @param OptionsResolver $resolver
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'My\Bundle\WebsiteBundle\Model\Adult',
            'csrf_protection' => true,
            'cascade_validation' => true,
            'name' => ""
        ));
    }

    /**
     * @return string
     */
    public function getBlockPrefix()
    {
        //Here I need the $options['additionalName']
        return 'my_bundle_websitebundle_adult_'.$this->_additionalName;
    }

    public function getName(){
        return $this->getBlockPrefix();
    }
}

getBlockPrefix isnt aware of $options['additionalName'], therefore you need a class property. And additional you can try with getName()

answered Nov 24, 2016 at 12:13

Rawburner

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3 Comments

Zwen2012 Over a year ago

Doesn#t work, the variable "$this->_additionalName" is null when calling it in "getBlockPrefix".

Rawburner Over a year ago

I don't know if it works, but you can try to set the fully block name in $options array: $options['block_name'] = "my_bundle_websitebundle_adult__additional"

Rawburner Over a year ago

I think you can only set the block prefix hardcoded.

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