Symfony2 - using form validation in REST API project

Question

In a Symfony REST API project and we are implementing a validation for the params passed to the end points. I'm trying to using forms for this purpose but they don't seem to work as expected.

Given this end point as example:

GET /users/

which accepts a companyId as param

we want that this param is required and integer.

The controller

public function getUsersAction(Request $request)
{
    $user = new User();

    $form  = $this->createForm(new UserType(), $user, array(
        'method' => 'GET'
    ));

    $form->handleRequest();

    if ( ! $form->isValid()) {
        // Send a 400
        die('form is not valid');
    } else {
        die('form is valid');
    }
}

The form type

class UserType extends FormType
{
    /**
     * @param FormBuilderInterface $builder
     * @param array                $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        parent::buildForm($builder, $options);
        $builder->add('companyId', 'integer');
    }

    /**
     * @param OptionsResolver $resolver
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        parent::configureOptions($resolver);

        $resolver->setDefaults(array(
            'data_class' => 'ApiBundle\Entity\User',
            'csrf_protection' => false

        ));
    }

    /**
     * @return string
     */
    public function getName()
    {
        return ''; // if this is not empty, the form is not submitted at all
    }
}

The validation.yml

ApiBundle\Entity\User:
    properties:
        companyId:
            - Type:
                type: integer
            - NotBlank: ~
            - NotNull: ~

The config.yml

framework:
    validation:      { enabled: true, enable_annotations: false }

The Problem

$form->isValid() in the controller is always true

in src/ApiBundle/Resource/config/ I think the file is loaded, as if I use the validator service straightly, it works. — Wminded
– Wminded, Commented Jan 20, 2016 at 13:34

Ashok Chitroda · Accepted Answer · 2016-01-20 13:47:41Z

1

Please replace with

$form->handleRequest();

to

$form->handleRequest($request);

I hope it will work.

edited Jan 20, 2016 at 13:47

answered Jan 20, 2016 at 12:26

Ashok Chitroda

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3 Comments

Wminded Over a year ago

That would throw an exception, as handleRequest instanciates a NativeRequestHandler, which requires the $request param to be null

felipsmartins Over a year ago

@Wminded what you mean "which requires the $request param to be null"?

Wminded Over a year ago

the method has this check: if (null !== $request) { throw new UnexpectedTypeException($request, 'null'); }

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