I have a collection of forms like in the code below, which leads to a form that looks like the following (with two example entries):
When clicking submit, the data i provided to the form (builder) instance is updated accordingly.
Problem: The problem i have is, that the list can be quite long, so i need a way of knowing which instances have been updated.
I thought about storing a clone of the original data (here $leadPartnerList in my session. But that does not feel right.
Does symfony (specifically form builder) provide such functionality out of the box? Or what would be an efficient solution to know which fields in the form have been updated and which not?
My Twig:
{% block content %}
<div>
{{ form_start(form) }}
{% for partner in lead_partners %}
{{ form_row(partner.name) }}
{% endfor %}
{{ form_end(form) }}
</div>
{% endblock content %}
My Controller Code:
public function overview(Request $request, \App\Utility\LeadPartnerLoader $LeadPartnerLoader)
{
$leadPartnerList = $leadPartnerLoader->loadAll();
$formBuilderData = [
'lead_partners' => $leadPartnerList
];
$listForm = $formFactory->createNamedBuilder('listForm', FormType::class, $formBuilderData)
->add('lead_partners', CollectionType::class, [
'entry_type' => LeadPartnerFormType::class,
'allow_add' => true
])
->add('submit', SubmitType::class, [
'label' => 'Submit Changes'
])
->getForm();
... handleRequest and so on and so forth...
}
And the Form Type (LeadPartnerFormType):
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => LeadPartner::class,
));
}
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('name', TextType::class);
}
$leadPartnerList is of type array with LeadPartner instances within each entry of the array.
PLEASE NOTE: I'm not using Doctrine here!
