如何更改收集表单字段类型中的值和选择的标签？

Question

I have collection field type like this:

$defaultData = array('attendances' => array('5', '4'));
    $form = $this->createFormBuilder($defaultData)
        ->add('choice', 'text')

        ->add('email', 'email')
        ->add('message', 'textarea')
        ->add('attendances', 'collection', array(
            'type'  => 'choice',

            'options'  => array(

                'choices'   => array('1' => 'حاضر', '0' => 'غایب'),
            ),
        ))
        ->add('send', 'submit')
        ->getForm();

what I get is this:

See what labels of choices are(0 and 1) and also their input name attribute, what I want is to change label and input name attr so how can i change $defaultData for this?

Answer 1

Ok you can do this with data attribute as array, you can read more about it here

Example with your code:

$defaultData = array('attendances' => 
   array('key' => '5', 'key2' => '4')
);
$form = $this->createFormBuilder($defaultData)
    ->add('choice', 'text')
    ->add('email', 'email')
    ->add('message', 'textarea')
    ->add('attendances', 'collection', array(
            'type'  => 'choice',

            'options'  => array(

                'choices'   => array('1' => 'حاضر', '0' => 'غایب'),
            ),
            'data' => $defaultData['attendances']
        ))
    ->add('send', 'submit')
    ->getForm();

result:

name="form[attendances][key]"
name="form[attendances][key2]"

and label also key and key2

Answer 2

I'd suggest that if you're going to create a select, you use the 'choice' type directly:

->add('attendances', 'choice', array(
                    'choices' => array('1' => 'حاضر', '0' => 'غایب'),))

Hope it helps.

UPDATE

You can use a predefined array to populate the choices. You can also set the default using the data attribute.

$defaultData = array('attendances' => array('5' => 'One option', '4' => 'Another option'));

...
->add('attendances', 'choice', array(
                        'choices' => $defaultData["attendances"],
                        'data' => '5',))// just in case you want a preselected choice, in this case, key 5 will appear selected by default.
...