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<?php |
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/* |
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* This file is part of Pomm's Foundation package. |
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* |
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* (c) 2014 - 2017 Grégoire HUBERT <[email protected]> |
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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 PommProject\Foundation\Converter; |
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use PommProject\Foundation\Exception\ConverterException; |
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use PommProject\Foundation\Session\Session; |
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/** |
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* PgJson |
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* |
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* Json converter. |
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* |
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* @package Foundation |
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* @copyright 2014 - 2017 Grégoire HUBERT |
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* @author Grégoire HUBERT |
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* @license X11 {@link http://opensource.org/licenses/mit-license.php} |
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* @see ConverterInterface |
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*/ |
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class PgJson implements ConverterInterface |
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{ |
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protected $is_array; |
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/** |
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* __construct |
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* |
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* Configure the JSON converter to decode JSON as StdObject instances or |
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* arrays (default). |
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* |
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* @param boolean $is_array |
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*/ |
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public function __construct($is_array = null) |
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{ |
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$this->is_array = $is_array === null ? true : $is_array; |
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} |
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/** |
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* fromPg |
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* |
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* @see ConverterInterface |
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*/ |
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public function fromPg($data, $type, Session $session) |
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{ |
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if (trim($data) === '') { |
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return null; |
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} |
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$return = json_decode($data, $this->is_array); |
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if (JSON_ERROR_NONE !== json_last_error()) { |
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throw new ConverterException( |
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sprintf( |
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"Could not convert Json to PHP %s, json_last_error() returned '%d'.\n%s", |
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$this->is_array ? 'array' : 'object', |
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json_last_error(), |
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$data |
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) |
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); |
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} |
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return $return; |
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} |
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/** |
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* toPg |
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* |
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* @see ConverterInterface |
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*/ |
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public function toPg($data, $type, Session $session) |
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{ |
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return |
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$data !== null |
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? sprintf("json '%s'", $this->jsonEncode($data)) |
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: sprintf("NULL::%s", $type) |
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; |
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} |
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/** |
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* toPgStandardFormat |
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* |
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* @see ConverterInterface |
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*/ |
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public function toPgStandardFormat($data, $type, Session $session) |
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{ |
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return |
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$data !== null |
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? $this->jsonEncode($data) |
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: null |
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; |
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} |
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/** |
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* jsonEncode |
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* |
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* Encode data to Json. Throw an exception if an error occurs. |
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* |
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* @param mixed $data |
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* @throws ConverterException |
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* @return string |
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*/ |
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protected function jsonEncode($data) |
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{ |
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$return = json_encode($data); |
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if ($return === false) { |
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throw new ConverterException( |
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sprintf( |
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"Could not convert %s data to JSON. Driver returned '%s'.", |
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gettype($data), |
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json_last_error() |
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) |
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); |
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} |
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return $return; |
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} |
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} |
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pomm-project /
Foundation
