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<?php |
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/** |
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* components |
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* |
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* @author Wolfy-J |
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*/ |
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namespace Spiral\ODM\Entities; |
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use Spiral\ODM\CompositableInterface; |
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use Spiral\ODM\Document; |
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use Spiral\ODM\DocumentEntity; |
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use Spiral\ODM\Exceptions\DefinitionException; |
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use Spiral\ODM\Exceptions\InstantionException; |
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use Spiral\ODM\InstantiatorInterface; |
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use Spiral\ODM\ODMInterface; |
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/** |
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* Provides ability to construct Document and DocumentEntities with inheritance support. |
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*/ |
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class DocumentInstantiator implements InstantiatorInterface |
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{ |
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/** |
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* @invisible |
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* @var ODMInterface |
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*/ |
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private $odm; |
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/** |
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* Primary instantiation class. |
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* |
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* @var string |
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*/ |
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private $class = ''; |
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/** |
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* Normalized schema delivered by DocumentSchema. |
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* |
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* @var array |
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*/ |
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private $schema = []; |
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/** |
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* @param ODMInterface $odm |
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* @param string $class |
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* @param array $schema |
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*/ |
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public function __construct(ODMInterface $odm, string $class, array $schema) |
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{ |
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$this->odm = $odm; |
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$this->class = $class; |
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$this->schema = $schema; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @return CompositableInterface|DocumentEntity|Document |
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* |
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* @throws InstantionException |
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*/ |
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public function instantiate($fields, bool $filter = true): CompositableInterface |
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{ |
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$class = $this->defineClass($fields); |
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if ($class !== $this->class) { |
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//We have to dedicate class creation to external instantiator (possibly children class) |
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return $this->odm->instantiate($class, $fields, $filter); |
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} |
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//Now we can construct needed class, in this case we are following DocumentEntity declaration |
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if (!$filter) { |
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//No need to filter values, passing directly in constructor |
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return new $class($fields, $this->schema, $this->odm); |
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} else { |
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$entity = new $class($fields, $this->schema, $this->odm); |
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if (!$entity instanceof CompositableInterface) { |
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throw new InstantionException( |
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"Unable to set filtered values for {$class}, must be instance of CompositableInterface" |
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); |
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} |
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//Must pass value thought all needed filters |
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$entity->stateValue($fields); |
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return $entity; |
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} |
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} |
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/** |
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* Define document class using it's fieldset and definition. |
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* |
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* @param \ArrayAccess|array $fields |
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* |
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* @return string |
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* |
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* @throws DefinitionException |
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*/ |
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protected function defineClass($fields) |
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{ |
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//Rule to define class instance |
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$definition = $this->schema[DocumentEntity::SH_INSTANTIATION]; |
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if (is_string($definition)) { |
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//Document has no variations |
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return $definition; |
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} |
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if (!is_array($fields)) { |
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//Unable to resolve for non array set, using same class as given |
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return $this->class; |
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} |
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$defined = $this->class; |
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foreach ($definition as $field => $child) { |
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if (array_key_exists($field, $fields)) { |
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//Apparently this is child |
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$defined = $child; |
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break; |
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} |
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} |
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return $defined; |
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} |
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} |
spiral /
components
