Symfony2 FormBuilder with Entity type with no values

Question

I am using an entity type of form element in Symfony2's formbuilder.

 ->add('categories', 'entity', array('required' => false,
            'multiple' => true,
            'expanded' => true,
            'label'=>'Categories (select all that apply)',
            'class' => 'AcmeBundle:Category',
            'query_builder' => function(EntityRepository $er) use ($profile) {
                return $er->createQueryBuilder('u')
                    ->where('u.profile = :profile')
                    ->setParameter('profile', $profile)
                    ->orderBy('u.name', 'ASC');
            }));

There is a case where the database query does not return any values, but Symfony2 still displays the label for the element.

How do I suppress the label altogether for cases where there are no entity results to display? Thanks!

What happens when say you assign the array to a variable, lets call it $categoryInputAttributes then before calling add() you do unset($categoryInputAttributes['label']); ? — Adam Elsodaney
– Adam Elsodaney, Commented Dec 16, 2012 at 3:26
That sounds like a solution-- basically run the query before building the form, and building it dynamically. But I'm hoping there's a more Symfony-style approach. Thanks! — Acyra
– Acyra, Commented Dec 16, 2012 at 11:56

alainivars · Accepted Answer · 2012-12-31 15:26:08Z

1

In your associated .twig file add this:

{% if not empty(entity.categories) %}
    {{ form_label(form.categories) }}
    {{ form_errors(form.categories) }}
    {{ form_widget(form.categories) }}
{% endif %}

That will display it only if it is not empty

answered Dec 31, 2012 at 15:26

alainivars

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2 Comments

Acyra Over a year ago

I think the twig syntax is "if entity.categories is not empty". But that still doesn't work, it still displays the label.

Acyra Over a year ago

It is still rendering the main entity "Categories" label with the "form_rest". This almost seems like a Sf2 bug.

saamorim · Accepted Answer · 2013-07-12 07:40:01Z

0

+50

Improving the answer of @alainivars since my edit was rejected.

In your associated .twig file add this:

{% if not empty(entity.categories) %}
    {{ form_label(form.categories) }}
    {{ form_errors(form.categories) }}
    {{ form_widget(form.categories) }}
{% else %}
    {% do form.categories.setRendered %}
{% endif %}

That will display it only if it is not empty and marked the setRendered on the field so it doesn't show on the form_rest, thus bypassing your problem.

answered Jul 12, 2013 at 7:40

saamorim

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1 Comment

Acyra Over a year ago

Thanks! It doesn't work but this first line does: {% if form.categories is not empty %}

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