How to edit data using EntityType?

Question

symfony

The people didn’t find an answer, although I dug
something for a long time, I’m probably doing something wrong
How can I edit the data in the form using EntityType
to create it turns out fine

->add('trip', EntityType::class, array(
                'class' => 'AppBundle\Entity\Trip',
                'choice_label' => 'tripTitle',
            ))

but how to edit?
resets by default all fields in the given select

Answer 1

More? What does edit mean?