63 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			63 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/*
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 * This file is part of the Symfony package.
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 *
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 * (c) Fabien Potencier <fabien@symfony.com>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace Symfony\Component\Validator\Constraints;
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use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
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use Symfony\Component\Validator\Constraint;
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use Symfony\Component\Validator\ConstraintValidator;
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use Symfony\Component\Validator\Exception\UnexpectedTypeException;
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/**
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 * @author Fabien Potencier <fabien@symfony.com>
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 * @author Bernhard Schussek <bschussek@symfony.com>
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 */
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class ExpressionValidator extends ConstraintValidator
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{
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    private ExpressionLanguage $expressionLanguage;
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    public function __construct(?ExpressionLanguage $expressionLanguage = null)
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    {
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        if ($expressionLanguage) {
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            $this->expressionLanguage = $expressionLanguage;
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        }
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    }
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    public function validate(mixed $value, Constraint $constraint): void
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    {
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        if (!$constraint instanceof Expression) {
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            throw new UnexpectedTypeException($constraint, Expression::class);
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        }
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        $variables = $constraint->values;
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        $variables['value'] = $value;
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        $variables['this'] = $this->context->getObject();
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        $variables['context'] = $this->context;
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        if ($constraint->negate xor $this->getExpressionLanguage()->evaluate($constraint->expression, $variables)) {
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            $this->context->buildViolation($constraint->message)
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                ->setParameter('{{ value }}', $this->formatValue($value, self::OBJECT_TO_STRING))
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                ->setCode(Expression::EXPRESSION_FAILED_ERROR)
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                ->addViolation();
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        }
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    }
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    private function getExpressionLanguage(): ExpressionLanguage
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    {
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        if (!isset($this->expressionLanguage)) {
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            $this->expressionLanguage = new ExpressionLanguage();
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            $this->expressionLanguage->registerProvider(new ExpressionLanguageProvider());
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        }
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        return $this->expressionLanguage;
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    }
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}
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