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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 JetBrains\PhpStorm\ArrayShape; |
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use Traversable; |
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use Yiisoft\Strings\StringHelper; |
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use Yiisoft\Validator\BeforeValidationInterface; |
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use Yiisoft\Validator\Rule\Trait\BeforeValidationTrait; |
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use Yiisoft\Validator\Rule\Trait\RuleNameTrait; |
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use Yiisoft\Validator\RuleInterface; |
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use Yiisoft\Validator\RulesDumper; |
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use Yiisoft\Validator\SerializableRuleInterface; |
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use Yiisoft\Validator\ValidationContext; |
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use function array_pop; |
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use function count; |
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use function implode; |
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use function is_array; |
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use function ltrim; |
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use function rtrim; |
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use function sprintf; |
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/** |
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* Can be used for validation of nested structures. |
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*/ |
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#[Attribute(Attribute::TARGET_PROPERTY | Attribute::IS_REPEATABLE)] |
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final class Nested implements SerializableRuleInterface, BeforeValidationInterface |
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{ |
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use BeforeValidationTrait; |
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use RuleNameTrait; |
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private const SEPARATOR = '.'; |
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private const EACH_SHORTCUT = '*'; |
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public function __construct( |
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/** |
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* @var iterable<Closure|Closure[]|RuleInterface|RuleInterface[]>|null |
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*/ |
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private ?iterable $rules = null, |
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private bool $requirePropertyPath = false, |
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private string $noPropertyPathMessage = 'Property path "{path}" is not found.', |
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private bool $normalizeRules = true, |
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private bool $skipOnEmpty = false, |
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/** |
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* @var callable |
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*/ |
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private $skipOnEmptyCallback = null, |
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private bool $skipOnError = false, |
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/** |
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* @var Closure(mixed, ValidationContext):bool|null |
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*/ |
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private ?Closure $when = null, |
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) { |
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$this->initSkipOnEmptyProperties($skipOnEmpty, $skipOnEmptyCallback); |
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if ($this->rules === null) { |
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return; |
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} |
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$rules = $rules instanceof Traversable ? iterator_to_array($rules) : $rules; |
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if (empty($rules)) { |
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throw new InvalidArgumentException('Rules must not be empty.'); |
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} |
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if (self::checkRules($rules)) { |
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$message = sprintf('Each rule should be an instance of %s.', RuleInterface::class); |
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throw new InvalidArgumentException($message); |
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} |
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$this->rules = $rules; |
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if ($this->normalizeRules === true) { |
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$this->normalizeRules(); |
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} |
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} |
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/** |
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* @return iterable<Closure|Closure[]|RuleInterface|RuleInterface[]>|null |
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*/ |
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public function getRules(): ?iterable |
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{ |
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return $this->rules; |
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} |
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/** |
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* @return bool |
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*/ |
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public function getRequirePropertyPath(): bool |
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{ |
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return $this->requirePropertyPath; |
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} |
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/** |
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* @return string |
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*/ |
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public function getNoPropertyPathMessage(): string |
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{ |
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return $this->noPropertyPathMessage; |
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} |
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private static function checkRules($rules): bool |
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{ |
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return array_reduce( |
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$rules, |
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static function (bool $carry, $rule) { |
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return $carry || (is_array($rule) ? self::checkRules($rule) : !$rule instanceof RuleInterface); |
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}, |
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false |
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); |
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} |
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private function normalizeRules(): void |
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{ |
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/** @var iterable $rules */ |
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$rules = $this->getRules(); |
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while (true) { |
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$breakWhile = true; |
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$rulesMap = []; |
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foreach ($rules as $valuePath => $rule) { |
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if ($valuePath === self::EACH_SHORTCUT) { |
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throw new InvalidArgumentException('Bare shortcut is prohibited. Use "Each" rule instead.'); |
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} |
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$parts = StringHelper::parsePath( |
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(string) $valuePath, |
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delimiter: self::EACH_SHORTCUT, |
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preserveDelimiterEscaping: true |
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); |
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if (count($parts) === 1) { |
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continue; |
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} |
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$breakWhile = false; |
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$lastValuePath = array_pop($parts); |
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$lastValuePath = ltrim($lastValuePath, '.'); |
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$lastValuePath = str_replace('\\' . self::EACH_SHORTCUT, self::EACH_SHORTCUT, $lastValuePath); |
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$remainingValuePath = implode(self::EACH_SHORTCUT, $parts); |
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$remainingValuePath = rtrim($remainingValuePath, self::SEPARATOR); |
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if (!isset($rulesMap[$remainingValuePath])) { |
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$rulesMap[$remainingValuePath] = []; |
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} |
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$rulesMap[$remainingValuePath][$lastValuePath] = $rule; |
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unset($rules[$valuePath]); |
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} |
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foreach ($rulesMap as $valuePath => $nestedRules) { |
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$rules[$valuePath] = new Each([new self($nestedRules, normalizeRules: false)]); |
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} |
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if ($breakWhile === true) { |
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break; |
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} |
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} |
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$this->rules = $rules; |
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} |
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#[ArrayShape([ |
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'requirePropertyPath' => 'bool', |
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'noPropertyPathMessage' => 'array', |
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'skipOnEmpty' => 'bool', |
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'skipOnError' => 'bool', |
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'rules' => 'array|null', |
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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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'requirePropertyPath' => $this->getRequirePropertyPath(), |
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'noPropertyPathMessage' => [ |
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'message' => $this->getNoPropertyPathMessage(), |
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], |
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'skipOnEmpty' => $this->skipOnEmpty, |
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'skipOnError' => $this->skipOnError, |
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'rules' => $this->rules === null ? null : (new RulesDumper())->asArray($this->rules), |
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]; |
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} |
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public function getHandlerClassName(): string |
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{ |
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return NestedHandler::class; |
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} |
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} |
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yiisoft /
validator
Let?s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let?s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: