How to make fields for formbuilder taken from each symfony2 entity?

Question

symfony

Again, the question is all about the same symfony2)
Entity can be used in the formbuilder as a choice, but then a select and one data input field are rendered, but how can I make a separate input render for each entry from the database? I think it will be easier to understand with pictures.
This is how it should be,

Phone 1, phone 2 are taken from the database:

...
$builder
                ->add('phone', 'entity', array(
                               'class' => 'Acme\DemoBundle\Entity\Phone',
                               'property' => 'name'
                          ))
                ->add('note')
                ->add('button', 'submit');
...

and as a result, a record of the form goes

to the database if it is standardly displayed through form_start, then a sad select and one input are displayed.

Answer 1

collection .