Symfony2 Form Builder Select Across Join Table with Metadata

Question

I have 3 entities:

[Member] ----OneToMany----> [MemberCategory] ---ManyToOne---> [Category]

This works well as far as fetching results fr

Answer 1

You will need to use the querybuilder inside your form

$builder->add('categories', 'entity', array(
        'class' => 'SMWMemberBundle:MemberCategory',
        'property'     => 'category.categoryName',
        'query_builder' => function(EntityRepository $er ) use ( ? ) {
           return $er->createQueryBuilder( ? )

          // your query with a left join probably

         }
        'multiple'     => true,
        'expanded'     => true,
        'required' => false
    ));

See documentation for proper use. see symfony2 form querybuilder with parameters for an exmple