public function isValid($value, Constraint $constraint)
{
if (!$constraint->choices && !$constraint->callback) {
throw new ConstraintDefinitionException('Either "choices" or "callback" must be specified on constraint Choice');
}
if (null === $value) {
return true;
}
if ($constraint->multiple && !is_array($value)) {
throw new UnexpectedTypeException($value, 'array');
}
if ($constraint->callback) {
if (is_callable(array($this->context->getCurrentClass(), $constraint->callback))) {
$choices = call_user_func(array($this->context->getCurrentClass(), $constraint->callback));
} else if (is_callable($constraint->callback)) {
$choices = call_user_func($constraint->callback);
} else {
throw new ConstraintDefinitionException('The Choice constraint expects a valid callback');
}
} else {
$choices = $constraint->choices;
}
if ($constraint->multiple) {
foreach ($value as $_value) {
if (!in_array($_value, $choices, $constraint->strict)) {
$this->setMessage($constraint->multipleMessage, array('{{ value }}' => $_value));
return false;
}
}
$count = count($value);
if ($constraint->min !== null && $count < $constraint->min) {
$this->setMessage($constraint->minMessage, array('{{ limit }}' => $constraint->min));
return false;
}
if ($constraint->max !== null && $count > $constraint->max) {
$this->setMessage($constraint->maxMessage, array('{{ limit }}' => $constraint->max));
return false;
}
} elseif (!in_array($value, $choices, $constraint->strict)) {
$this->setMessage($constraint->message, array('{{ value }}' => $value));
return false;
}
return true;
}