forked from GNUsocial/gnu-social
		
	
		
			
				
	
	
		
			95 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			95 lines
		
	
	
		
			3.6 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\Validator\Constraint;
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use Symfony\Component\Validator\ConstraintValidator;
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use Symfony\Component\Validator\Context\ExecutionContextInterface;
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use Symfony\Component\Validator\Exception\UnexpectedTypeException;
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/**
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 * Provides a base class for the validation of property comparisons.
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 *
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 * @author Daniel Holmes <daniel@danielholmes.org>
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 * @author Bernhard Schussek <bschussek@gmail.com>
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 */
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abstract class AbstractComparisonValidator extends ConstraintValidator
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{
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    /**
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     * {@inheritdoc}
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     */
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    public function validate($value, Constraint $constraint)
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    {
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        if (!$constraint instanceof AbstractComparison) {
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            throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\AbstractComparison');
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        }
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        if (null === $value) {
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            return;
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        }
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        $comparedValue = $constraint->value;
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        // Convert strings to DateTimes if comparing another DateTime
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        // This allows to compare with any date/time value supported by
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        // the DateTime constructor:
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        // http://php.net/manual/en/datetime.formats.php
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        if (\is_string($comparedValue)) {
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            if ($value instanceof \DateTimeImmutable) {
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                // If $value is immutable, convert the compared value to a
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                // DateTimeImmutable too
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                $comparedValue = new \DateTimeImmutable($comparedValue);
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            } elseif ($value instanceof \DateTime || $value instanceof \DateTimeInterface) {
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                // Otherwise use DateTime
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                $comparedValue = new \DateTime($comparedValue);
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            }
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        }
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        if (!$this->compareValues($value, $comparedValue)) {
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            if ($this->context instanceof ExecutionContextInterface) {
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                $this->context->buildViolation($constraint->message)
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                    ->setParameter('{{ value }}', $this->formatValue($value, self::OBJECT_TO_STRING | self::PRETTY_DATE))
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                    ->setParameter('{{ compared_value }}', $this->formatValue($comparedValue, self::OBJECT_TO_STRING | self::PRETTY_DATE))
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                    ->setParameter('{{ compared_value_type }}', $this->formatTypeOf($comparedValue))
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                    ->setCode($this->getErrorCode())
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                    ->addViolation();
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            } else {
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                $this->buildViolation($constraint->message)
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                    ->setParameter('{{ value }}', $this->formatValue($value, self::OBJECT_TO_STRING | self::PRETTY_DATE))
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                    ->setParameter('{{ compared_value }}', $this->formatValue($comparedValue, self::OBJECT_TO_STRING | self::PRETTY_DATE))
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                    ->setParameter('{{ compared_value_type }}', $this->formatTypeOf($comparedValue))
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                    ->setCode($this->getErrorCode())
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                    ->addViolation();
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            }
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        }
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    }
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    /**
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     * Compares the two given values to find if their relationship is valid.
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     *
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     * @param mixed $value1 The first value to compare
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     * @param mixed $value2 The second value to compare
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     *
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     * @return bool true if the relationship is valid, false otherwise
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     */
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    abstract protected function compareValues($value1, $value2);
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    /**
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     * Returns the error code used if the comparison fails.
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     *
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     * @return string|null The error code or `null` if no code should be set
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     */
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    protected function getErrorCode()
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    {
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    }
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}
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