I have not found any easy way to accomplish to simply check a Checkbox by default. That can not be that hard, so what am i missing?
UserBundle\Entity\User
let's assume that you have an entity called ( User ) and it has a member named isActive, You can set the checkbox to be checked by default by setting up isActive to true:
$user = new User();
// This will set the checkbox to be checked by default
$user->setIsActive(true);
// Create the user data entry form
$form = $this->createForm(new UserType(), $user);