Symfony Multi-step form issue (craue form bundle) - php

Question

My form data returned after the flow has finished is a bit odd. Two of the entity properties (that were populated using an embedded form) are in the array format keyed by the field names and not a string.
Engine and model arrays of the values lol.
Anything I have done to cause this?
Here is my setup.
The flow
<?php
namespace AppBundle\Form;
use AppBundle\Form\Type\CreateVehicleFormType;
use Craue\FormFlowBundle\Form\FormFlow;
use Craue\FormFlowBundle\Form\FormFlowInterface;
/**
* Class CreateVehicleFlow
* #package AppBundle\Form
*/
class CreateVehicleFlow extends FormFlow
{
protected $allowRedirectAfterSubmit = true;
/**
* #return array
*/
protected function loadStepsConfig()
{
return [
// Step 1.
[
'label' => 'Wheels',
'form_type' => CreateVehicleFormType::class,
],
// Step 2.
[
'label' => 'Engine',
'form_type' => CreateVehicleFormType::class,
'skip' => function($estimatedCurrentStepNumber, FormFlowInterface $flow) {
return $estimatedCurrentStepNumber > 1 && !$flow->getFormData()->canHaveEngine();
},
],
// Step 3.
[
'label' => 'Model',
'form_type' => CreateVehicleFormType::class
],
// Step 4.
[
'label' => 'Confirmation',
],
];
}
}
Parent create vehicle form
<?php
namespace AppBundle\Form\Type;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\FormBuilderInterface;
/**
* Class CreateVehicleFormType
* #package AppBundle\Form\Type
*/
class CreateVehicleFormType extends AbstractType
{
/**
* #param FormBuilderInterface $builder
* #param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
switch ($options['flow_step']) {
case 1:
$validValues = [2, 4];
$builder->add(
'numberOfWheels',
ChoiceType::class, [
'choices' => array_combine($validValues, $validValues),
'attr' => [
'class' => 'form-control input-lg',
'required' => 'required'
],
]);
break;
case 2:
$builder->add('engine', VehicleEngineFormType::class, []);
break;
case 3:
$builder->add('model', VehicleModelFormType::class, [
'numberOfWheels' => $options['data']->getNumberOfWheels()
]);
break;
}
}
/**
* #return string
*/
public function getBlockPrefix()
{
return 'createVehicle';
}
/**
* #return string
*/
public function getName()
{
return 'create_vehicle';
}
}
Child vehicle engine form
<?php
namespace AppBundle\Form\Type;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\FormBuilderInterface;
/**
* Class CreateVehicleFormType
* #package AppBundle\Form\Type
*/
class VehicleEngineFormType extends AbstractType
{
/**
* #param FormBuilderInterface $builder
* #param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('engine', ChoiceType::class, [
'label' => false,
'choices' => [
'Diesel' => 'Diesel',
'Petrol' => 'Petrol',
'Electric' => 'Electric',
'Hybrid' => 'Hybrid'
],
'attr' => [
'class' => 'form-control input-lg',
'required' => 'required'
],
]
);
}
/**
* #return string
*/
public function getName()
{
return 'vehicle_engine';
}
}
Child vehicle model form
<?php
namespace AppBundle\Form\Type;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
/**
* Class CreateVehicleFormType
* #package AppBundle\Form\Type
*/
class VehicleModelFormType extends AbstractType
{
/**
* #param FormBuilderInterface $builder
* #param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$choices = [];
if ($options['numberOfWheels'] === 2) {
$choices['BMW R nineT'] = 'BMW R nineT';
$choices['Ducati Monster 1200S'] = 'Ducati Monster 1200S';
} else {
$choices['Ferrari LaFerrari'] = 'Ferrari LaFerrari';
$choices['Aston Martin One-77'] = 'Aston Martin One-77';
}
$builder->add('model', ChoiceType::class, [
'label' => false,
'choices' => $choices,
'attr' => [
'class' => 'form-control input-lg',
'required' => 'required'
],
]
);
}
/**
* #param OptionsResolver $resolver
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'numberOfWheels' => 2,
]);
}
/**
* #return string
*/
public function getName()
{
return 'vehicle_model';
}
}
And finally my controller including my hack to get them back as string properties
/**
* One form type for the entire flow.
*
* #param Request $request
* #return Response
*
* #Route("/create.vehicle", name="create.vehicle")
*/
public function CreateVehicleAction(Request $request)
{
$formData = new Vehicle();
$flow = $this->get('app.form.flow.create_vehicle'); // must match the flow's service id
$flow->setGenericFormOptions([
'action' => $this->generateUrl('create.vehicle')
]);
$flow->bind($formData);
// form of the current step
$form = $submittedForm = $flow->createForm();
if ($flow->isValid($form)) {
$flow->saveCurrentStepData($form);
if ($flow->nextStep()) {
// form for the next step
$form = $flow->createForm();
} else {
// flow finished
// Bit hacky but not sure hy they are arrays set to the property.
if (is_array($formData->getEngine())) {
$formData->setEngine($formData->getEngine()['engine']);
}
if (is_array($formData->getModel())) {
$formData->setModel($formData->getModel()['model']);
}
$flow->reset();
$this->flashMessage(
'success',
[
'title' => 'Vehicle Created',
'message' => sprintf(
'You have created a %s %d wheeled vehicle.',
$formData->getModel(),
$formData->getNumberOfWheels()
)
]
);
return $this->redirect(
$this->getPresencePath('sign_in.page')
);
}
}
if ($flow->redirectAfterSubmit($submittedForm)) {
$params = $this
->get('craue_formflow_util')
->addRouteParameters(
array_merge(
$request->query->all(),
$request->attributes->get('_route_params')
),
$flow
);
return $this->redirect(
$this->getPresencePath('sign_in.page', $params)
);
}
return $this->render('AppBundle:multi-step-form:create-vehicle.html.twig', array(
'form' => $form->createView(),
'flow' => $flow
));
}
Can anyone spot the issue?