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<?php |
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/** |
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* This software package is licensed under AGPL or Commercial license. |
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* |
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* @package maslosoft/mangan |
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* @licence AGPL or Commercial |
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* @copyright Copyright (c) Piotr Masełkowski <[email protected]> |
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* @copyright Copyright (c) Maslosoft |
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* @copyright Copyright (c) Others as mentioned in code |
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* @link https://maslosoft.com/mangan/ |
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*/ |
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namespace Maslosoft\Mangan\Decorators; |
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use Maslosoft\Addendum\Interfaces\AnnotatedInterface; |
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use Maslosoft\Addendum\Utilities\ClassChecker; |
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use Maslosoft\Mangan\Events\ClassNotFound; |
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use Maslosoft\Mangan\Events\Event; |
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use Maslosoft\Mangan\Exceptions\ManganException; |
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use Maslosoft\Mangan\Helpers\DbRefManager; |
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use Maslosoft\Mangan\Helpers\NotFoundResolver; |
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use Maslosoft\Mangan\Helpers\UnknownDocumentTypePanicker; |
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use Maslosoft\Mangan\Interfaces\Decorators\Property\DecoratorInterface; |
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use Maslosoft\Mangan\Interfaces\Transformators\TransformatorInterface; |
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use Maslosoft\Mangan\Meta\DocumentPropertyMeta; |
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use Maslosoft\Mangan\Meta\ManganMeta; |
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/** |
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* EmbeddedDecorator |
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* |
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* @author Piotr Maselkowski <pmaselkowski at gmail.com> |
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*/ |
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class EmbeddedDecorator implements DecoratorInterface |
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{ |
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public function read($model, $name, &$dbValue, $transformatorClass = TransformatorInterface::class) |
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{ |
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if (is_object($dbValue) && $dbValue instanceof AnnotatedInterface) |
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{ |
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$model->$name = $dbValue; |
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return; |
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} |
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if($dbValue === null) |
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{ |
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$meta = ManganMeta::create($model)->$name; |
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if($meta->embedded && $meta->embedded->nullable) |
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{ |
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$model->$name = null; |
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return null; |
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} |
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} |
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static::ensureClass($model, $name, $dbValue); |
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$instance = null; |
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if ($model->$name instanceof $dbValue['_class']) |
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{ |
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$instance = $model->$name; |
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} |
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$embedded = $transformatorClass::toModel($dbValue, $instance, $instance); |
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// Field was transformed from DB Ref |
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$embedded = DbRefManager::maybeCreateInstanceFrom($embedded); |
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$model->$name = $embedded; |
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} |
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public function write($model, $name, &$dbValue, $transformatorClass = TransformatorInterface::class) |
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{ |
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if (null === $model->$name) |
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{ |
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$meta = ManganMeta::create($model)->$name; |
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if($meta->embedded && $meta->embedded->nullable) |
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{ |
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$dbValue[$name] = null; |
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return null; |
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} |
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$className = static::getClassName($model, $name); |
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if (!is_string($className)) |
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{ |
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return null; |
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} |
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// This is to prevent infinite loops |
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// if class name is same as current `$model`, ie not really set. |
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// @link https://github.com/Maslosoft/Mangan/issues/86 |
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if(is_a($model, $className)) |
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{ |
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return null; |
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} |
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$dbValue[$name] = $transformatorClass::fromModel(new $className); |
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return; |
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} |
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$dbValue[$name] = $transformatorClass::fromModel($model->$name); |
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} |
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public static function ensureClass($model, $name, &$dbValue) |
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{ |
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if (!is_array($dbValue) || !array_key_exists('_class', $dbValue) || empty($dbValue['_class'])) |
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{ |
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$class = static::getClassName($model, $name); |
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} |
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else |
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{ |
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$class = $dbValue['_class']; |
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} |
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if (!ClassChecker::exists($class)) |
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{ |
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$event = new ClassNotFound($model); |
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$event->notFound = $class; |
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if (Event::hasHandler($model, NotFoundResolver::EventClassNotFound) && Event::handled($model, NotFoundResolver::EventClassNotFound, $event)) |
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{ |
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$class = $event->replacement; |
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} |
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else |
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{ |
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throw new ManganException(sprintf("Embedded model class `%s` not found in model `%s` field `%s`", $class, get_class($model), $name)); |
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} |
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} |
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// Something is very wrong here. |
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// The `$dbValue` variable must be array for embedded documents |
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// if it is not, it means that we have wrong data type stored in |
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// database. There is last resort handling below this condition |
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// check, however it *might* be risky to use this, as we cannot |
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// be sure that we can reconstruct proper object from some scalar value. |
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if(!is_array($dbValue) && null !==$dbValue) |
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{ |
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$data = $dbValue; |
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$dbValue = []; |
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$dbValue['data'] = $data; |
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$class = UnknownDocumentTypePanicker::tryHandle($dbValue, $model, $name); |
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} |
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$dbValue['_class'] = $class; |
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} |
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protected static function getClassName($model, $name) |
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{ |
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$fieldMeta = ManganMeta::create($model)->$name; |
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/* @var $fieldMeta DocumentPropertyMeta */ |
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return $fieldMeta->embedded->class; |
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} |
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} |
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Maslosoft /
Mangan
