Symfony2 checkbox form, alter date based on a checkbox - forms

Question

For test purposes I make a light library online tool with Symfony2.
I have a Borrow entity that links to other entities. I want to create a form to validate the return of the books a given user have borrowed.
I have gathered all the Borrow recordings that correspond to books the user has not returned.
Now I want to create a form with a checkbox list to validate the books the user has returned.
After that, I can make something like what follows (which is not the problem).
if ($this->getRequest()->getMethod() == 'POST')
{
$form->bindRequest($this->getRequest());
if ($form->isValid())
{
$obj_list = $form->getData();
foreach ($obj_list as $obj)
{
$obj->setBorrowEndDate(...); // Today's datetime
$em = $this->getDoctrine()->getEntityManager();
$em->persist($obj);
$em->flush();
}
return $this->redirect($this->generateUrl('index'));
}
else
{
$args['problem']=$form->errors();
}
}
// Continuation : creation of the form

Answer 1

instead of creating entity attribute, you can do it in this way:
$builder->add('check', 'checkbox', [
'mapped' => false
]);
$builder->addEventListener(FormEvents::POST_SUBMIT, function (FormEvent $event)
{
$form = $event->getForm();
$object = $event->getData();
if($form->get('check')->getData() && !$object->getBorrowEndDate()) {
$object->setBorrowEndDate(new \DateTime());
}
$event->setData($object);
});

Answer 2

I don't really understand your problem but i'll try to help you:
1) Create a class attribute in your Entity (Borrow) called "check" for example, which is not depending on your databases:
private $check;
public function setCheck($check)
{
$this->check = $check;
}
public function getCheck()
{
return $this->check;
}
2) Add it in your class form as a checkbox input.
$builder->add('check', 'checkbox')
3) Then, you've got 2 solutions:
Update its setter like this:
public function setCheck($check)
{
$this->check = $check;
// Update borrow endtime
if ($this->check === true && !$this->getBorrowEndDate()) {
$this->setBorrowEndDate(new \DateTime());
}
}
Or use doctrine lifecycles:
/**
* Called before persisting your entity
*
* #ORM\prePersist
*/
public function prePersist()
{
// Update borrow endtime
if ($this->check === true && !$this->getBorrowEndDate()) {
$this->setBorrowEndDate(new \DateTime());
}
}
Hope this helps you !