Symfony 2. Controller's createForm does not bind Model to submodels - php

Question

I have 2 models, and 2 from types. FormType "EventSchedule" is a subform of "Event". When i tried to use $this->createForm(new EventType(), $event); in my controller, I got the form but EventSchedules(that are the part of Event) have no links to related events.
/**
* Event
*
* #ORM\Table()
* #ORM\Entity(repositoryClass="Voulidance\SharedBundle\Repository\EventRepository")
*/
class Event extends BaseEntity {
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
*
* #var string
*
* #ORM\Column(name="name", type="string", length=255)
* #Assert\Length(max = "50", maxMessage="The value is too long. It should have maximum {{ limit }} characters")
* #Assert\NotBlank()
*/
private $name;
/**
*
* #var \DateTime
*
* #ORM\Column(name="start_date", type="datetime")
* #Assert\DateTime(message = "The date should be in format 'mm/dd/yyyy'.")
* #Assert\NotBlank(message = "Start date field should not be blank.")
*/
private $startDate;
/**
*
* #var \DateTime
*
* #ORM\Column(name="end_date", type="datetime")
* #Assert\DateTime(message = "The date should be in format 'mm/dd/yyyy'.")
* #Assert\NotBlank(message = "End date field should not be blank.")
*/
private $endDate;
/**
* #ORM\OneToMany(targetEntity="EventSchedule", mappedBy="event", cascade={"persist"})
* #ORM\OrderBy({"dayOfWeek" = "ASC", "startTime" = "ASC"})
*/
protected $eventSchedules;
public function __construct()
{
$this->eventSchedules = new ArrayCollection();
}
public function getId() {
return $this->id;
}
public function getName() {
return $this->name;
}
public function getStartDate() {
return $this->startDate;
}
public function getEndDate() {
return $this->endDate;
}
public function getEventSchedules() {
return $this->eventSchedules;
}
public function setId($id) {
$this->id = $id;
}
public function setName($name) {
$this->name = $name;
}
public function setStartDate($startDate) {
$this->startDate = $startDate;
}
public function setEndDate($endDate) {
$this->endDate = $endDate;
}
public function setEventSchedules($eventSchedules) {
$this->eventSchedules = $eventSchedules;
}
public function addEventSchedule(EventSchedule $eventSchedule)
{
$this->eventSchedules->add($eventSchedule);
}
public function removeEventSchedule(EventSchedule $eventSchedule)
{
$this->eventSchedules->removeElement($eventSchedule);
}
/**
* EventSchedule
*
* #ORM\Table()
* #ORM\Entity(repositoryClass="Voulidance\SharedBundle\Repository\EventScheduleRepository")
*/
class EventSchedule extends BaseEntity{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var \DateTime
*
* #ORM\Column(name="startTime", type="time", nullable=true)
* #Assert\Time()
* #Assert\NotBlank(message="Please, fill in all fields.")
*/
private $startTime;
/**
* #var \DateTime
*
* #ORM\Column(name="endTime", type="time", nullable=true)
* #Assert\Time()
* #Assert\NotBlank(message="Please, fill in all fields.")
*/
private $endTime;
/**
* #var integer
*
* #ORM\Column(name="dayOfWeek", type="integer")
* #Assert\NotBlank(message="Please, fill in all fields.")
*/
private $dayOfWeek;
/**
* #ORM\ManyToOne(targetEntity="Event", inversedBy="eventSchedules")
* #ORM\JoinColumn(name="event_id", referencedColumnName="id")
* #Assert\Valid
* #Assert\NotBlank(message="Please, fill in all fields.")
*/
protected $event;
//Assert\NotBlank(message="Please, fill in all fields.")
public function getId() {
return $this->id;
}
public function getStartTime() {
return $this->startTime;
}
public function getEndTime() {
return $this->endTime;
}
public function getDayOfWeek() {
return $this->dayOfWeek;
}
public function getEvent() {
return $this->event;
}
public function setId($id) {
$this->id = $id;
return $this;
}
public function setStartTime($startTime) {
$this->startTime = $startTime;
return $this;
}
public function setEndTime($endTime) {
$this->endTime = $endTime;
return $this;
}
public function setDayOfWeek($dayOfWeek) {
$this->dayOfWeek = $dayOfWeek;
return $this;
}
public function setEvent($event) {
$this->event = $event;
return $this;
}
}
class EventType extends AbstractType{
public function buildForm(FormBuilderInterface $builder, array $options){
$builder->add('name', null, array(
'label' => false,
'attr' => array('id'=>"page-name", 'size'=>"24", 'class'=>'auth'),
'required'=>true
))->add('startDate', 'date', array(
'widget' => 'single_text',
'label' => false,
'format' => 'MM/dd/yyyy',
'invalid_message' => "Start date format should be 'mm/dd/yyyy'.",
'attr' => array('data-date'=>"", 'placeholder'=>"mm/dd/yyyy", 'size'=>"18",'class'=>"auth date holiday-start-date hasDatepicker", 'id'=>"holiday-start-date")
))->add('endDate', 'date', array(
'widget' => 'single_text',
'label' => false,
'format' => 'MM/dd/yyyy',
'invalid_message' => "End date format should be 'mm/dd/yyyy'.",
'attr' => array('data-date'=>"", 'placeholder'=>"mm/dd/yyyy", 'size'=>"18",'class'=>"auth date holiday-start-date hasDatepicker", 'id'=>"holiday-start-date")
))->add('eventSchedules', 'collection', array(
'type' => new EventScheduleType(),
'cascade_validation' => true,
'allow_add' => true,
'allow_delete' => true,
'by_reference' => false,
'label' => false,
'error_bubbling'=>false
))->add('id', 'hidden');
}
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'Voulidance\SharedBundle\Entity\Event',
'cascade_validation' => false,
'validation_groups' => false
));
}
public function getName()
{
return 'event';
}
}
class EventScheduleType extends AbstractType {
public function buildForm(FormBuilderInterface $builder, array $options) {
$builder->add('startTime', 'us_time', array(
'widget' => 'text',
'label' => 'From',
'attr' => array('maxlength' => '2', 'placeholder' => 'hh:mm'),
'invalid_message' => 'Time value is not valid.',
'error_bubbling' => false
))->add('endTime', 'us_time', array(
'widget' => 'text',
'label' => 'To',
'attr' => array('maxlength' => '2', 'placeholder' => 'hh:mm'),
'invalid_message' => 'Time value is not valid.',
'error_bubbling' => false
))->add('dayOfWeek', 'choice', array(
'choices' => array(
1 => 'Everyday',
2 => 'Sunday',
3 => 'Monday',
4 => 'Tuesday',
5 => 'Wednesday',
6 => 'Thursday',
7 => 'Friday',
8 => 'Saturday',
),
'label' => false,
'attr' => array('size'=>'15'),
'multiple' => false,
'error_bubbling' => false
))->add('id', 'hidden', array('label' => false));
}
public function setDefaultOptions(OptionsResolverInterface $resolver) {
$resolver->setDefaults(array(
'data_class' => 'Voulidance\SharedBundle\Entity\EventSchedule',
'cascade_validation' => false,
'validation_groups' => false
));
}
public function getName() {
return 'eventSchedule';
}
}
/**
* Save event
*
* #Route("/save", name="admin_event_save")
* #Template("VoulidanceAdminBundle:Event:index.html.twig")
*/
public function saveAction(Request $request) {
$em = $this->getDoctrine()->getManager();
$eventRepository = $em->getRepository("VoulidanceSharedBundle:Event");
$event = new Event();
$form = $this->createForm(new EventType(), $event);
$form->handleRequest($request);
$schedules = $form->get('eventSchedules')->getData();
foreach($schedules as $schedule){
$schedule->setEvent($event);
}
if ($form->isValid()) {
$errors = $this->validateSchedules($schedules);
if(count($errors) > 0){
return new JsonResponse(array('subformError'=>true, 'errors'=>$errors));
}
$em->persist($event);
$em->flush();
return new JsonResponse(array('success' => true, 'events'=>$eventRepository->findAll()));
}
return new JsonResponse(array('error' => true, 'errors'=>(string)$form->getErrors(true)));
}

Answer 1

Although I can't test the code right now, I think I can see the problem and answer your question so that maybe you can work on it.
$schedules = $form->get('eventSchedules')->getData();
should be:
$schedules = $event-> getEventSchedules();
because you need the mapped data which $form->handleRequest($request); is filling into $event object.

Answer 2

Solution is to set event to eventSchedule in the addEventSchedule method of event class.
public function addEventSchedule(EventSchedule $eventSchedule)
{
$eventSchedule->addEvent($this);
$this->eventSchedules->add($eventSchedule);
}