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<?php |
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namespace Charcoal\Model; |
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use InvalidArgumentException; |
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use RuntimeException; |
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use Charcoal\Model\Service\ModelLoader; |
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use Charcoal\Model\Service\ModelLoaderBuilder; |
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/** |
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* |
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* Provides model loader builder features. |
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* |
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* Model Loader Builder Trait |
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* @package Charcoal\Model |
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*/ |
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trait ModelLoaderBuilderTrait |
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{ |
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/** |
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* Store the builder instance. |
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* |
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* @var ModelLoaderBuilder |
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*/ |
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protected $modelLoaderBuilder; |
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/** |
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* Store all model loaders. |
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* |
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* @var ModelLoader[] |
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*/ |
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private static $modelLoaders = []; |
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/** |
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* Set an model loader builder. |
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* |
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* @param ModelLoaderBuilder $builder The builder to create models. |
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* @return void |
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*/ |
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protected function setModelLoaderBuilder(ModelLoaderBuilder $builder) |
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{ |
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$this->modelLoaderBuilder = $builder; |
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} |
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/** |
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* Retrieve the model loader builder. |
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* |
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* @throws RuntimeException If the model loader builder is missing. |
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* @return ModelLoaderBuilder |
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*/ |
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protected function modelLoaderBuilder() |
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{ |
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if (!isset($this->modelLoaderBuilder)) { |
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throw new RuntimeException(sprintf( |
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'Model Factory is not defined for [%s]', |
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get_class($this) |
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)); |
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} |
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return $this->modelLoaderBuilder; |
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} |
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/** |
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* Retrieve the object loader for the given model. |
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* |
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* @param string $objType The target model. |
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* @param string|null $objKey The target model's key to load by. |
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* @throws InvalidArgumentException If the $objType or $objKey are invalid. |
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* @return ModelInterface |
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*/ |
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protected function modelLoader($objType, $objKey = null) |
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{ |
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if (!is_string($objType)) { |
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throw new InvalidArgumentException(sprintf( |
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'The object type must be a string, received %s', |
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is_object($objType) ? get_class($objType) : gettype($objType) |
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)); |
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} |
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$key = $objKey; |
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if ($key === null) { |
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$key = '_'; |
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} elseif (!is_string($key)) { |
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throw new InvalidArgumentException(sprintf( |
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'The object property key must be a string, received %s', |
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is_object($key) ? get_class($key) : gettype($key) |
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)); |
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} |
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if (isset(self::$modelLoaders[$objType][$key])) { |
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return self::$modelLoaders[$objType][$key]; |
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} |
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$builder = $this->modelLoaderBuilder(); |
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self::$modelLoaders[$objType][$key] = $builder($objType, $objKey); |
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return self::$modelLoaders[$objType][$key]; |
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} |
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} |
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locomotivemtl /
charcoal-core
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