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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 Yiisoft\Validator\Rule; |
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use Yiisoft\Validator\Result; |
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use Yiisoft\Validator\DataSetInterface; |
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/** |
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* Callback rule could be used to create custom rules without defining a class. |
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* If callback is specified as [className, methodName], the method of the class could be private. |
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*/ |
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class Callback extends Rule |
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{ |
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private $callback; |
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public function __construct($callback) |
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{ |
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if (!(is_callable($callback) || (is_array($callback) && count($callback) === 2))) { |
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throw new \InvalidArgumentException( |
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'The argument must be a callable or an array with the class and method name.' |
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); |
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} |
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$this->callback = $callback; |
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} |
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protected function validateValue($value, DataSetInterface $dataSet = null): Result |
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{ |
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$result = new Result(); |
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$callback = $this->callback; |
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/** |
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* @var $callbackResult Result |
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*/ |
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$callbackResult = is_callable($callback) |
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? $callback($value, $dataSet) |
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: $this->invokeMethod($value, $callback); |
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if ($callbackResult->isValid() === false) { |
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foreach ($callbackResult->getErrors() as $message) { |
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$result->addError($this->translateMessage($message)); |
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} |
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} |
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return $result; |
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} |
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private function invokeMethod($value, array $callback): Result |
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{ |
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[$class, $method] = $callback; |
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if (!method_exists($class, $method)) { |
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throw new \InvalidArgumentException( |
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sprintf( |
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'Method "%s" targeted by Callback rule does not exist in class %s', |
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$method, |
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\get_class($class) |
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) |
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); |
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} |
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$reflectionMethod = new \ReflectionMethod($class, $method); |
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if (is_string($class) && !$reflectionMethod->isStatic()) { |
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throw new \InvalidArgumentException( |
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sprintf('Method "%s" targeted by Callback rule must be static.', $method) |
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); |
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} |
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3 |
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if (!$reflectionMethod->isPublic()) { |
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$reflectionMethod->setAccessible(true); |
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} |
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if ($reflectionMethod->isStatic()) { |
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return $reflectionMethod->invoke(null, $value); |
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} |
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return $reflectionMethod->invoke($class, $value); |
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} |
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} |
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yiisoft /
validator
