/**
* Checks if the passed value is valid.
*
* @param mixed $value The value that should be validated
* @param Constraint $constraint The constraint for the validation
*
* @api
*/
public function validate($value, Constraint $constraint)
{
$groupName = $constraint->getGroupName();
foreach ($value as $user) {
$groups = $user->getGroups();
foreach ($groups as $group) {
if ($group->getName() != $groupName) {
$this->context->addViolation('message', array('%group%' => $groupName));
}
}
}
}