120 lines
2.6 KiB
PHP
120 lines
2.6 KiB
PHP
<?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 <alexandre@gaigalas.net>
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*
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* For the full copyright and license information, please view the LICENSE file
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* 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 <alexandre@gaigalas.net>
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* @author Caio César Tavares <caiotava@gmail.com>
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* @author Henrique Moody <henriquemoody@gmail.com>
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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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