Symfony2 Form : Select an entity or add a new one

forms, symfony

Solution

I had a similar problem which may lead to your resolution:

I have a Category and Item relationship (Many-to-One) and I wanted to either select an existing item or create a new item.

In my Form class:

    $builder->add('item', 'entity', array(
        'label' => 'Item',
        'class' => 'ExampleItemBundle:Item',
    ));

    $builder->add('itemNew', new EmbedItemForm(), array(
        'required' => FALSE,
        'mapped' => FALSE,
        'property_path' => 'item',
    ));

    $builder->addEventListener(FormEvents::PRE_SUBMIT, function(FormEvent $event) {
        $data = $event->getData();
        $form = $event->getForm();

        if (!empty($data['itemNew']['name'])) {
            $form->remove('item');

            $form->add('itemNew', new EmbedItemForm(), array(
                'required' => TRUE,
                'mapped' => TRUE,
                'property_path' => 'item',
            ));
        }
    });

Problem

I have an `order` and a `client` entity. I am wondering if it's possible with the actual Symfony2 form system to create an order form which will allow to: - Select several clients from a dropdown (mix of `collection` and `entity` form type) - And to create new clients on the fly (the default way for the `collection` type) if not in the dropdown list. I've seen some way to do it by creating multiple forms in the same page, but this is not the way I would like to achieve it. Are there any better ways to do this?

Original source