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<?php |
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namespace Doctrine\ODM\MongoDB\Mapping; |
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use Doctrine\Instantiator\Instantiator; |
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/** |
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* A <tt>ClassMetadata</tt> instance holds all the object-document mapping metadata |
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* of a document and it's references. |
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* |
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* Once populated, ClassMetadata instances are usually cached in a serialized form. |
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* |
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* <b>IMPORTANT NOTE:</b> |
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* |
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* The fields of this class are only public for 2 reasons: |
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* 1) To allow fast READ access. |
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* 2) To drastically reduce the size of a serialized instance (private/protected members |
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* get the whole class name, namespace inclusive, prepended to every property in |
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* the serialized representation). |
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* |
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* @since 1.0 |
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*/ |
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class ClassMetadata extends ClassMetadataInfo |
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{ |
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/** |
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* The ReflectionProperty instances of the mapped class. |
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* |
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* @var \ReflectionProperty[] |
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*/ |
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public $reflFields = array(); |
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/** |
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* @var \Doctrine\Instantiator\InstantiatorInterface|null |
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*/ |
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private $instantiator; |
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/** |
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* Initializes a new ClassMetadata instance that will hold the object-document mapping |
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* metadata of the class with the given name. |
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* |
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* @param string $documentName The name of the document class the new instance is used for. |
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*/ |
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public function __construct($documentName) |
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{ |
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1474 |
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parent::__construct($documentName); |
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1474 |
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$this->reflClass = new \ReflectionClass($documentName); |
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$this->namespace = $this->reflClass->getNamespaceName(); |
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$this->setCollection($this->reflClass->getShortName()); |
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$this->instantiator = new Instantiator(); |
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} |
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/** |
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* Map a field. |
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* |
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* @param array $mapping The mapping information. |
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* @return void |
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*/ |
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public function mapField(array $mapping) |
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{ |
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$mapping = parent::mapField($mapping); |
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$reflProp = $this->reflClass->getProperty($mapping['fieldName']); |
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$reflProp->setAccessible(true); |
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$this->reflFields[$mapping['fieldName']] = $reflProp; |
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} |
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/** |
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* Determines which fields get serialized. |
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* |
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* It is only serialized what is necessary for best unserialization performance. |
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* That means any metadata properties that are not set or empty or simply have |
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* their default value are NOT serialized. |
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* |
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* Parts that are also NOT serialized because they can not be properly unserialized: |
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* - reflClass (ReflectionClass) |
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* - reflFields (ReflectionProperty array) |
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* |
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* @return array The names of all the fields that should be serialized. |
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*/ |
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public function __sleep() |
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{ |
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// This metadata is always serialized/cached. |
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$serialized = array( |
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'fieldMappings', |
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'associationMappings', |
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'identifier', |
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'name', |
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'namespace', // TODO: REMOVE |
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'db', |
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'collection', |
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'readPreference', |
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'readPreferenceTags', |
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'writeConcern', |
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'rootDocumentName', |
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'generatorType', |
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'generatorOptions', |
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'idGenerator', |
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'indexes', |
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'shardKey', |
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); |
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// The rest of the metadata is only serialized if necessary. |
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if ($this->changeTrackingPolicy != self::CHANGETRACKING_DEFERRED_IMPLICIT) { |
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$serialized[] = 'changeTrackingPolicy'; |
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} |
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if ($this->customRepositoryClassName) { |
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$serialized[] = 'customRepositoryClassName'; |
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} |
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if ($this->inheritanceType != self::INHERITANCE_TYPE_NONE || $this->discriminatorField !== null) { |
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$serialized[] = 'inheritanceType'; |
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$serialized[] = 'discriminatorField'; |
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$serialized[] = 'discriminatorValue'; |
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$serialized[] = 'discriminatorMap'; |
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$serialized[] = 'defaultDiscriminatorValue'; |
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$serialized[] = 'parentClasses'; |
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$serialized[] = 'subClasses'; |
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} |
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if ($this->isMappedSuperclass) { |
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$serialized[] = 'isMappedSuperclass'; |
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} |
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if ($this->isEmbeddedDocument) { |
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$serialized[] = 'isEmbeddedDocument'; |
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} |
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if ($this->isQueryResultDocument) { |
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$serialized[] = 'isQueryResultDocument'; |
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} |
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if ($this->isVersioned) { |
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$serialized[] = 'isVersioned'; |
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$serialized[] = 'versionField'; |
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} |
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if ($this->lifecycleCallbacks) { |
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$serialized[] = 'lifecycleCallbacks'; |
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} |
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if ($this->collectionCapped) { |
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$serialized[] = 'collectionCapped'; |
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$serialized[] = 'collectionSize'; |
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$serialized[] = 'collectionMax'; |
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} |
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if ($this->isReadOnly) { |
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$serialized[] = 'isReadOnly'; |
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} |
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return $serialized; |
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} |
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/** |
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* Restores some state that can not be serialized/unserialized. |
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* |
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* @return void |
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*/ |
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public function __wakeup() |
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{ |
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// Restore ReflectionClass and properties |
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$this->reflClass = new \ReflectionClass($this->name); |
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$this->instantiator = $this->instantiator ?: new Instantiator(); |
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foreach ($this->fieldMappings as $field => $mapping) { |
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if (isset($mapping['declared'])) { |
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$reflField = new \ReflectionProperty($mapping['declared'], $field); |
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} else { |
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$reflField = $this->reflClass->getProperty($field); |
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} |
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3 |
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$reflField->setAccessible(true); |
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$this->reflFields[$field] = $reflField; |
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} |
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} |
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/** |
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* Creates a new instance of the mapped class, without invoking the constructor. |
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* |
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* @return object |
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*/ |
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358 |
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public function newInstance() |
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{ |
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return $this->instantiator->instantiate($this->name); |
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} |
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} |
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doctrine /
mongodb-odm
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.