Open2
symfonyのカスタムバリデータでプロパティが未定義だと怒られる
symfony のカスタムバリデータを作成するとconstraitのプロパティがないと怒られる。
#[\Attribute]
class ContainsAlphanumeric extends Constraint
{
public string $message = 'The string "{{ string }}" contains an illegal character: it can only contain letters or numbers.';
public string $mode = 'strict';
// all configurable options must be passed to the constructor
public function __construct(?string $mode = null, ?string $message = null, ?array $groups = null, $payload = null)
{
parent::__construct([], $groups, $payload);
$this->mode = $mode ?? $this->mode;
$this->message = $message ?? $this->message;
}
class ContainsAlphanumericValidator extends ConstraintValidator
{
public function validate(mixed $value, Constraint $constraint): void
{
if (!$constraint instanceof ContainsAlphanumeric) {
throw new UnexpectedTypeException($constraint, ContainsAlphanumeric::class);
}
// custom constraints should ignore null and empty values to allow
// other constraints (NotBlank, NotNull, etc.) to take care of that
if (null === $value || '' === $value) {
return;
}
if (!is_string($value)) {
// throw this exception if your validator cannot handle the passed type so that it can be marked as invalid
throw new UnexpectedValueException($value, 'string');
// separate multiple types using pipes
// throw new UnexpectedValueException($value, 'string|int');
}
// access your configuration options like this:
if ('strict' === $constraint->mode) {
// ...
}
if (preg_match('/^[a-zA-Z0-9]+$/', $value, $matches)) {
return;
}
// the argument must be a string or an object implementing __toString()
$this->context->buildViolation($constraint->message)
->setParameter('{{ string }}', $value)
->addViolation();
}
}
継承元のConstraintにはmessageプロパティがないので$constraint->messageでプロパティがないと怒られる。
公式はあっていた。私の勘違い
public function validate(mixed $value, Constraint $constraint): void
{
if (!$constraint instanceof ContainsAlphanumeric) {
throw new UnexpectedTypeException($constraint, ContainsAlphanumeric::class);
}
// ...
ちゃんとinstanceOfで確認しているからlinterに怒られない。