Symfony 2.4 - Adding dinamically fields in the form

Question

I have created a form using Symfony 2.4 that is not linked to any entity because I only want to take the data to create a report. I have created a form using an AbstractType extended class and I need to add several items since the form represents a bill. I know about the allow_add attribute, but it just lets to add a field to the form and I need to do something like I show in the image:

formulario

I have no idea at all about how to do it, I have created an item class, and it contains two attributes, but I find nowhere any information about this. Until now this is what I've got:

namespace Abadia\FacturaBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;>

class ReciboCajaType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('ciudad', 'text')
            ->add('fecha', 'date')
            ->add('valor', 'number')
            ->add('recibi_de', 'text')
            ->add('suma_recibida', 'number')
            ->add('suma_letras', 'textarea')
            ->add('bloque', 'text')
            ->add('numero', 'text')
            ->add('descripcion', 'textarea')
            ->add('areas_comunes', 'number')
            ->add('cuota_extraordinaria', 'number')
            ->add('saldo', 'number')
            ->add('cheque', 'number')
            ->add('otros', 'number')
            ->add('efectivo', 'number')
            ->add('generar', 'submit')
        ;
    }

    public function getName()
    {
        return 'abadia_facturabundle_recibocajatype';
    }

    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array());
    }
}

I am working with the Twig extension. Just in case knows how to do it using it.

I would do it this way: pass in the current form data in json format to the page. If the user clicks the "add new item" link, ajax the information about the form (the info in json) to a class you want, add your new item, throw back the new json and let javascript build the form again. You probably will get in trouble with the formkey (token) but thats another topic. — paskl
– paskl, Commented Feb 20, 2016 at 21:39

1ed · Accepted Answer · 2016-02-20 21:52:52Z

1

Basically you will need 2 forms. One, call it main form and an another form for an item. Then you can embed the item form type into the main form type multiple times using the collection type. You will need some javascript too for adding and removing an item. It would be very long to write down exactly how to do it, but there is a good example in the docs.

answered Feb 20, 2016 at 21:52

1ed

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