Based on documentation: http://symfony.com/doc/2.8/form/dynamic_form_modification.html#form-events-submitted-data
I prepared dynamic generated form. And everything works properly but only when I use form for adding new data (/new) when I use the same form for editing existing data - not working
- Simple form for "Appointment". It should work like that: User select client and then second "select" is filling proper data - depends on each client from first select. And this works ok but only when I try add new Appointment. When I try edit no.
class AppointmentType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('name')
->add('client', EntityType::class, array(
'class' => 'SystemAdminBundle:Client',
'placeholder' => '',
));
$formModifier = function(\Symfony\Component\Form\FormInterface $form, Client $client)
{
$diseases = array();
if($client !== null) {
$diseases = $client->getDiseases();
}
$form->add('disease', EntityType::class, array(
'class' => 'SystemAdminBundle:Disease',
'placeholder' => '',
'choices' => $diseases,
));
};
$builder->addEventListener(
FormEvents::PRE_SET_DATA,
function (FormEvent $event) use ($formModifier) {
$data = $event->getData();
$formModifier($event->getForm(), $data->getClient());
}
);
$builder->get('client')->addEventListener(
FormEvents::POST_SUBMIT,
function (FormEvent $event) use ($formModifier) {
$client = $event->getForm()->getData();
$formModifier($event->getForm()->getParent(), $client);
}
);
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'System\AdminBundle\Entity\Appointment'
));
}
}
- Appointment controller - here is function for add new appointment and edit. For "new" my code works, for "edit" no.
public function newAction(Request $request)
{
$appointment = new Appointment();
$form = $this->createForm(AppointmentType::class, $appointment);
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$data = $request->request->get('appointment');
if(array_key_exists('name', $data)) {
$em = $this->getDoctrine()->getManager();
$em->persist($appointment);
$em->flush();
return $this->redirectToRoute('appointment_show', array('id' => $appointment->getId()));
}
}
return $this->render('appointment/new.html.twig', array(
'appointment' => $appointment,
'form' => $form->createView(),
));
}
public function editAction(Request $request, Appointment $appointment)
{
$deleteForm = $this->createDeleteForm($appointment);
$appointment = new Appointment();
$editForm = $this->createForm('System\AdminBundle\Form\AppointmentType', $appointment);
$editForm->handleRequest($request);
if ($editForm->isSubmitted() && $editForm->isValid()) {
$data = $request->request->get('appointment');
if(array_key_exists('name', $data)) {
$em = $this->getDoctrine()->getManager();
$em->persist($appointment);
$em->flush();
return $this->redirectToRoute('appointment_show', array('id' => $appointment->getId()));
}
return $this->redirectToRoute('appointment_edit', array('id' => $appointment->getId()));
}
return $this->render('appointment/edit.html.twig', array(
'appointment' => $appointment,
'edit_form' => $editForm->createView(),
'delete_form' => $deleteForm->createView(),
));
}
- View for "new" appointment
{% block content %}
{{ form_start(form) }}
{{ form_widget(form) }}
{{ form_end(form) }}
window.onload = function() {
var $sport = $('#appointment_client');
$sport.change(function() {
var $form = $(this).closest('form');
var data = {};
data[$sport.attr('name')] = $sport.val();
data['appointment[_token]'] = $('#appointment__token').val();
$.ajax({
url : $form.attr('action'),
type: $form.attr('method'),
data : data,
success: function(html) {
$('#appointment_disease').replaceWith(
$(html).find('#appointment_disease')
);
}
});
});
};
{% endblock %}
- View for "edit" appointment - it's almost the same as for "new" appointment
{% block content %}
{{ form_start(edit_form) }}
{{ form_widget(edit_form) }}
{{ form_end(edit_form) }}
window.onload = function() {
var $sport = $('#appointment_client');
$sport.change(function() {
var $form = $(this).closest('form');
var data = {};
data[$sport.attr('name')] = $sport.val();
data['appointment[_token]'] = $('#appointment__token').val();
$.ajax({
url : $form.attr('action'),
type: $form.attr('method'),
data : data,
success: function(html) {
$('#appointment_disease').replaceWith(
$(html).find('#appointment_disease')
);
}
});
});
};
{% endblock %}
appointment_editroute takes an id in parameter, but your controller takes anAppointmentobject — how does this even work ?