@denis
To build nested forms in Symfony, you would need to create separate form classes for each nested form and then connect them together in the parent form.
Here is a step-by-step guide to build nested forms in Symfony:
- Create a Form for the Parent Entity:
Generate a form class for the parent entity using the command:
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php bin/console make:form ParentEntity
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- Add Child Form Type Class:
Generate a form class for the child entity using the command:
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php bin/console make:form ChildEntity
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- Connect Child Form to Parent Form:
In the Parent form class, add the child form as a field using the EntityType or CollectionType field type:
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$builder->add('childEntity', ChildEntityType::class);
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- Configure Child Form Options:
In the parent form class, configure the options for the child form:
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$builder->add('childEntity', ChildEntityType::class, [
'data_class' => ChildEntity::class
]);
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- Render Child Form in Parent Form Template:
In the parent form template (e.g., parent_entity_form.html.twig), render the child form using the form_row() or form_widget() function:
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{{ form_row(form.childEntity) }}
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- Process Form Submissions:
In the controller handling the form submission, process the parent and child form submissions separately:
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$form = $this->createForm(ParentEntityType::class, $parentEntity);
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
// Handle parent form submission
// Access child form data
$childData = $form->get('childEntity')->getData();
// Handle child form submission
}
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By following these steps, you can create nested forms in Symfony and connect multiple form entities together for complex form structures.