Entity form field with inactive records - php

Question

I have a form definition like this (for demonstration purposes):
$builder->add('field', 'entity', [
'class' => EntityA::class,
'query_builder' => function($repo) {
return $repo->createQueryBuilder('e')
->andWhere('e.active = 1');
}
]);
This ensures that only active records can be selected in the dropdown field when using this form.
This leads to this case: When I edit an entity using the form definition from above, and this entity as an inactive EntityA assigned, it won't appear in the dropdown field. When I hit the save button, it will get the first active (if any) EntityA assigned. Also the form will suggest to the user that a different Entity is assigned than it actually is.
The correct way would be that the form displays all active records and the one inactive one that is currently assigned.
I looked into Form event listeners but this seems overly complicated. Also, extending the form just for editing could be a thing but it seems not "the right way" to me.
How can I solve this issue, preferably without using 3rd party bundles?

Answer 1

Get the object and load different data into dropdown depends of type of action: edit/create:
$builder->addEventListener(FormEvents::POST_SET_DATA, function (FormEvent $event)
{
$data = $event->getData();
$form = $event->getForm();
$form ->add('field', 'entity', [
'class' => EntityA::class,
'query_builder' => function($repo) use ($data) {
if ($data->getId()) {
// Edit mode: append the pre-selected record to dropdown
return $repo->createQueryBuilder('e')
->andWhere('e.active = 1')
->orWhere('e.id = :id')
->setParameter('id', $data->getId());
} else {
// Display only active records
return $repo->createQueryBuilder('e')->andWhere('e.active = 1');
}
}
]);
});