Why is my Symfony2 form data being re-arranged? - php

Question

I have a form which contains an array of entites, rendered as checkboxes:
$form = $this->createForm(new BasicListType(), $lists);
class BasicListType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('lists', 'entity', [
'required' => false,
'class' => 'MyBundle:ListEntity',
'property' => 'id',
'property_path' => '[id]',
'multiple' => true,
'expanded' => true,
]);
}
public function getName()
{
return 'list';
}
}
When I display my form, the rows are not in the same order as the $lists I built it with.
{{ form_start(form) }}
{% for list in form.lists %}
{{ form_row(list) }}
{% endfor %}
{{ form_end(form) }}
In fact, they're alphabetised by the id property. Why is this happening and more importantly, is there any way I can stop it?

Answer 1

Probably you need to use the query_builder option to construct an custom query, and order the result as you want. Should look something like that:
$builder->add('lists', 'entity', [
'required' => false,
'class' => 'MyBundle:ListEntity',
'property' => 'id',
'query_builder' => function(EntityRepository $er){
$qb = $er->createQueryBuilder('l');
$qb
->select('l')
->orderBy('DESIRED ORDER FIELD', 'ASC OR DESC') // change this!!
;
return $qb;
}
'property_path' => '[id]',
'multiple' => true,
'expanded' => true,
]);
You can pass an QueryBuilder Object directly too. Take a look of the docs.