How to disable specific item in form choice type?

Question

I have a form with choice field of entities from database:

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder->add('categories', 'document', array(
        'class' => 'Acme\DemoBundle\Document\Category',
        'property' => 'name',
        'multiple' => true,
        'expanded' => true,
        'empty_value' => false
    ));
}

This form will produce the list of checkboxes and will be rendered as:

[ ] Category 1
[ ] Category 2
[ ] Category 3

I want to disable some of the items by value in this list but I don't know where I should intercept choice field items to do that.

Does anybody know an solution?

Do you want them grayed out or just not displayed in the first place? — Squazic, Jan 15 '13 at 19:16
I just found that it possible to visually disable them in `finishView`. Remains to clarify how I can prevent of changing disabled values during `setData`. — Vladimir Kartaviy, Jan 15 '13 at 19:28

Jacer Omri · Answer 1 · 2015-12-31T14:57:11.143

13

you can use the 'choice_attr' in $form->add() and pass a function that will decide wether to add a disabled attribute or not depending on the value, key or index of the choice.

...
    'choice_attr' => function($key, $val, $index) {
        $disabled = false;

        // set disabled to true based on the value, key or index of the choice...

        return $disabled ? ['disabled' => 'disabled'] : [];
    },
...

edited Dec 31 '15 at 14:57

answered Dec 30 '15 at 09:42

Jacer Omri

1,723
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1

What's wrong with this solution? IMHO it's the right way to do it, see: http://symfony.com/doc/current/reference/forms/types/choice.html#choice-attr – David Kmenta Nov 01 '16 at 16:40
@DavidKmenta doesn't work with versions of Symfony prior to 2.7 – nomistic Mar 08 '17 at 15:38
2

Have in mind that some users can remove the disabled attribute using the browser inspector ! So you have to add more instructions ... – Sami Nov 12 '19 at 15:12

score 12 · Accepted Answer · answered Jan 15 '13 at 20:42

Just handled it with finishView and PRE_BIND event listener.

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder->add('categories', 'document', array(
        'class' => 'Acme\DemoBundle\Document\Category',
        'property' => 'name',
        'multiple' => true,
        'expanded' => true,
        'empty_value' => false
    ));

    $builder->addEventListener(FormEvents::PRE_BIND, function (FormEvent $event) {
        if (!$ids = $this->getNonEmptyCategoryIds()) {
            return;
        }

        $data = $event->getData();

        if (!isset($data['categories'])) {
            $data['categories'] = $ids;
        } else {
            $data['categories'] = array_unique(array_merge($data['categories'], $ids));
        }

        $event->setData($data);
    });
}

...

public function finishView(FormView $view, FormInterface $form, array $options)
{
    if (!$ids = $this->getNonEmptyCategoryIds()) {
        return;
    }

    foreach ($view->children['categories']->children as $category) {
        if (in_array($category->vars['value'], $ids, true)) {
            $category->vars['attr']['disabled'] = 'disabled';
            $category->vars['checked'] = true;
        }
    }
}

Something change in sf 2.3.* ? Beacuse this solution dosen't work for me. — Pawel, Jul 07 '13 at 07:08
This is insecure, as (if the html is manipulated) the choice is still possible. — Nemo64, Jul 07 '14 at 09:58
This post contains two different ways to disable checkboxes. I've spent hour before I got this. For me second way with finishView method is much easier to use. — hywak, Jul 21 '15 at 13:00

How to disable specific item in form choice type?

2 Answers2

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