如何将数组（可自定义）添加到symfony2表单（带奏鸣曲管理员）？

Question

I have a simple form with Sonata admin.

I would like the user could add a list of integers (as many as he wants). And after it would be store as an array in my object:

[1, 2, 3, 6, 9]

There any way of doing it without creating another class to instantiate the integers?

UPDATE:

The only way I know how to something close is using choice like:

 ->add('type', 'choice', [
                "required"           => true,
                "expanded"           => true,
                "multiple"           => false,
                "choices"            => Campanha::getTypes(),
            ])

But with that I have a limited number of choices, I would like that it would be free to the user to add the quantity of numbers and the values he wants

Answer 1

Try looking into sonata_type_native_collection:

From the Sonata Admin Docs:

This bundle handle the native Symfony collection form type by adding:

• an add button if you set the allow_add option to true.
• a delete button if you set the allow_delete option to true.

And the Symfony collection form type:

This field type is used to render a "collection" of some field or form. In the easiest sense, it could be an array of TextType fields that populate an array emails values.

So, for your case, maybe something like:

->add('type', 'sonata_type_native_collection', [
    'required' => true,
    'entry_type' => 'number',
    'options' => [
        // Any options you'd like the integer fields to have.
    ]
])

(This doesn't speak at all to the change's you'll need to make to the underlying model, of course.)

Edit: Changed the 'entry_options' array key to 'options', as per @Matheus Oliveira's comment.