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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Validator\Rule; |
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use Attribute; |
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use Closure; |
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use InvalidArgumentException; |
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use ReflectionObject; |
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use Yiisoft\Validator\AfterInitAttributeEventInterface; |
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use Yiisoft\Validator\Rule\Trait\SkipOnEmptyTrait; |
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use Yiisoft\Validator\Rule\Trait\SkipOnErrorTrait; |
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use Yiisoft\Validator\Rule\Trait\WhenTrait; |
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use Yiisoft\Validator\RuleWithOptionsInterface; |
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use Yiisoft\Validator\SkipOnEmptyInterface; |
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use Yiisoft\Validator\SkipOnErrorInterface; |
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use Yiisoft\Validator\WhenInterface; |
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/** |
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* Defines validation options to validating the value using a callback. |
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* |
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* @see CallbackHandler |
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* |
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* @psalm-import-type WhenType from WhenInterface |
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*/ |
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#[Attribute(Attribute::TARGET_CLASS | Attribute::TARGET_PROPERTY | Attribute::IS_REPEATABLE)] |
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final class Callback implements |
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RuleWithOptionsInterface, |
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SkipOnErrorInterface, |
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WhenInterface, |
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SkipOnEmptyInterface, |
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AfterInitAttributeEventInterface |
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{ |
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use SkipOnEmptyTrait; |
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use SkipOnErrorTrait; |
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use WhenTrait; |
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/** |
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* @var object|null The object being validated. `null` if PHP attributes aren't used. |
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*/ |
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private ?object $validatedObject = null; |
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/** |
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* @param callable|null $callback Callable with the `function ($value, $rule, $context): Result` signature that |
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* performs the validation. |
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* @param string|null $method Name of a validated object method with the `function ($value, $rule, $context): Result` |
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* signature that performs the validation. |
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* @param bool|callable|null $skipOnEmpty Whether to skip this rule if the value validated is empty. |
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* See {@see SkipOnEmptyInterface}. |
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* @param bool $skipOnError Whether to skip this rule if any of the previous rules gave an error. |
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* See {@see SkipOnErrorInterface}. |
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* @param Closure|null $when A callable to define a condition for applying the rule. |
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* See {@see WhenInterface}. |
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* @psalm-param WhenType $when |
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* |
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* @throws InvalidArgumentException When neither {@see $callback} nor {@see $method} is specified or |
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* both are specified at the same time. |
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*/ |
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public function __construct( |
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private mixed $callback = null, |
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private string|null $method = null, |
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private mixed $skipOnEmpty = null, |
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private bool $skipOnError = false, |
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private Closure|null $when = null, |
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) { |
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if ($this->callback === null && $this->method === null) { |
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throw new InvalidArgumentException('Either "$callback" or "$method" must be specified.'); |
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} |
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if ($this->callback !== null && $this->method !== null) { |
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throw new InvalidArgumentException('"$callback" and "$method" are mutually exclusive.'); |
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} |
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} |
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public function getName(): string |
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{ |
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return 'callback'; |
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} |
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/** |
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* Get the callable that performs validation. |
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* |
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* @return callable|null The callable that performs validation. |
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* |
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* @see $callback |
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*/ |
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public function getCallback(): callable|null |
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{ |
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return $this->callback; |
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} |
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2 |
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/** |
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* Get a name of a validated object method that performs the validation. |
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* |
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* @return string|null Name of a method that performs the validation. |
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* |
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* @see $method |
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*/ |
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public function getMethod(): string|null |
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{ |
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return $this->method; |
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} |
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/** |
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* Get object being validated. |
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* |
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* @return object|null Object being validated. Null if PHP attributes aren't used. |
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* |
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* @see $validatedObject |
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*/ |
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public function getValidatedObject(): ?object |
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{ |
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return $this->validatedObject; |
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} |
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public function afterInitAttribute(object $object, int $target): void |
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{ |
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if ($target === Attribute::TARGET_CLASS) { |
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$this->validatedObject = $object; |
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} |
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if ($this->method === null) { |
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return; |
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} |
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$method = $this->method; |
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$reflection = new ReflectionObject($object); |
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if (!$reflection->hasMethod($method)) { |
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throw new InvalidArgumentException( |
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sprintf( |
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'Method "%s" does not exist in class "%s".', |
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$method, |
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$object::class, |
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) |
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); |
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} |
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/** @psalm-suppress MixedMethodCall */ |
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$this->callback = Closure::bind(fn (mixed ...$args): mixed => $object->{$method}(...$args), $object, $object); |
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} |
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public function getOptions(): array |
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{ |
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return [ |
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'method' => $this->method, |
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'skipOnEmpty' => $this->getSkipOnEmptyOption(), |
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'skipOnError' => $this->skipOnError, |
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]; |
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} |
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public function getHandler(): string |
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{ |
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return CallbackHandler::class; |
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} |
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} |
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yiisoft /
validator
