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<?php |
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/* |
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* This file is part of Respect/Validation. |
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* |
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* (c) Alexandre Gomes Gaigalas <[email protected]> |
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* |
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* For the full copyright and license information, please view the "LICENSE.md" |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Respect\Validation\Rules; |
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use Respect\Validation\Exceptions\ValidationException; |
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use Respect\Validation\Validatable; |
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use function array_shift; |
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use function count; |
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use function current; |
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/** |
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* @author Alexandre Gomes Gaigalas <[email protected]> |
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* @author Caio César Tavares <[email protected]> |
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* @author Henrique Moody <[email protected]> |
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*/ |
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final class Not extends AbstractRule |
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{ |
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/** |
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* @var Validatable |
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*/ |
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private $rule; |
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public function __construct(Validatable $rule) |
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{ |
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$this->rule = $this->extractNegatedRule($rule); |
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} |
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public function getNegatedRule(): Validatable |
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{ |
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return $this->rule; |
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} |
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public function setName(string $name): Validatable |
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{ |
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$this->rule->setName($name); |
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return parent::setName($name); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function validate($input): bool |
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{ |
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return $this->rule->validate($input) === false; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function assert($input): void |
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{ |
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if ($this->validate($input)) { |
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return; |
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} |
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$rule = $this->rule; |
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if ($rule instanceof AllOf) { |
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$rule = $this->absorbAllOf($rule, $input); |
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} |
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$exception = $rule->reportError($input); |
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$exception->updateMode(ValidationException::MODE_NEGATIVE); |
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throw $exception; |
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} |
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/** |
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* @param mixed $input |
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*/ |
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private function absorbAllOf(AllOf $rule, $input): Validatable |
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{ |
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$rules = $rule->getRules(); |
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while (($current = array_shift($rules))) { |
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$rule = $current; |
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if (!$rule instanceof AllOf) { |
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continue; |
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} |
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if (!$rule->validate($input)) { |
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continue; |
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} |
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$rules = $rule->getRules(); |
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} |
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return $rule; |
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} |
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private function extractNegatedRule(Validatable $rule): Validatable |
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{ |
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if ($rule instanceof self && $rule->getNegatedRule() instanceof self) { |
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return $this->extractNegatedRule($rule->getNegatedRule()->getNegatedRule()); |
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} |
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if (!$rule instanceof AllOf) { |
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return $rule; |
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} |
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$rules = $rule->getRules(); |
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if (count($rules) === 1) { |
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return $this->extractNegatedRule(current($rules)); |
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} |
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return $rule; |
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} |
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} |
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Respect /
Validation
