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Filename : JsonType.php
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<?php

namespace Doctrine\DBAL\Types;

use Doctrine\DBAL\Platforms\AbstractPlatform;
use Doctrine\Deprecations\Deprecation;
use JsonException;

use function is_resource;
use function json_decode;
use function json_encode;
use function stream_get_contents;

use const JSON_PRESERVE_ZERO_FRACTION;
use const JSON_THROW_ON_ERROR;

/**
 * Type generating json objects values
 */
class JsonType extends Type
{
    /**
     * {@inheritDoc}
     */
    public function getSQLDeclaration(array $column, AbstractPlatform $platform)
    {
        return $platform->getJsonTypeDeclarationSQL($column);
    }

    /**
     * {@inheritDoc}
     *
     * @param T $value
     *
     * @return (T is null ? null : string)
     *
     * @template T
     */
    public function convertToDatabaseValue($value, AbstractPlatform $platform)
    {
        if ($value === null) {
            return null;
        }

        try {
            return json_encode($value, JSON_THROW_ON_ERROR | JSON_PRESERVE_ZERO_FRACTION);
        } catch (JsonException $e) {
            throw ConversionException::conversionFailedSerialization($value, 'json', $e->getMessage(), $e);
        }
    }

    /**
     * {@inheritDoc}
     */
    public function convertToPHPValue($value, AbstractPlatform $platform)
    {
        if ($value === null || $value === '') {
            return null;
        }

        if (is_resource($value)) {
            $value = stream_get_contents($value);
        }

        try {
            return json_decode($value, true, 512, JSON_THROW_ON_ERROR);
        } catch (JsonException $e) {
            throw ConversionException::conversionFailed($value, $this->getName(), $e);
        }
    }

    /**
     * {@inheritDoc}
     */
    public function getName()
    {
        return Types::JSON;
    }

    /**
     * {@inheritDoc}
     *
     * @deprecated
     */
    public function requiresSQLCommentHint(AbstractPlatform $platform)
    {
        Deprecation::triggerIfCalledFromOutside(
            'doctrine/dbal',
            'https://github.com/doctrine/dbal/pull/5509',
            '%s is deprecated.',
            __METHOD__,
        );

        return ! $platform->hasNativeJsonType();
    }
}