How is the best way to add select with choices to filters in Sonata Admin?

How is the best way to add select with choices to filters in Sonata Admin?

For form i can:

$builder->add('gender', 'choice', array(
    'choices'   => array('m' => 'Male', 'f' => 'Female'),
    'required'  => false,
));

but this not working in filters.

Answer

For your admin class you should use configureDatagridFilters function to add your filters,if you want to add custom options for your gender fields you can use doctrine_orm_string and provide your choices list in array form

$datagridMapper
       ->add('gender',
        'doctrine_orm_string',
        array(), 
       'choice',
        array('choices' => array('m' => 'Male', 'f' => 'Female')
        )
    );