/**
* {@inheritdoc}
*/
public function validate($value, Constraint $constraint)
{
$channels = $this->channelRepository->getLabelsIndexedByCode();
if (0 === count($channels)) {
throw new ConstraintDefinitionException('No channel is set in the application');
}
$constraint->choices = array_keys($channels);
parent::validate($value, $constraint);
}
