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vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php line 250

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  1. <?php
  3. declare(strict_types=1);
  5. namespace Doctrine\ORM\Mapping;
  7. use Doctrine\Common\EventManager;
  8. use Doctrine\DBAL\Platforms;
  9. use Doctrine\DBAL\Platforms\AbstractPlatform;
  10. use Doctrine\DBAL\Platforms\MySQLPlatform;
  11. use Doctrine\DBAL\Platforms\SqlitePlatform;
  12. use Doctrine\DBAL\Platforms\SQLServerPlatform;
  13. use Doctrine\Deprecations\Deprecation;
  14. use Doctrine\ORM\EntityManagerInterface;
  15. use Doctrine\ORM\Event\LoadClassMetadataEventArgs;
  16. use Doctrine\ORM\Event\OnClassMetadataNotFoundEventArgs;
  17. use Doctrine\ORM\Events;
  18. use Doctrine\ORM\Exception\ORMException;
  19. use Doctrine\ORM\Id\AssignedGenerator;
  20. use Doctrine\ORM\Id\BigIntegerIdentityGenerator;
  21. use Doctrine\ORM\Id\IdentityGenerator;
  22. use Doctrine\ORM\Id\SequenceGenerator;
  23. use Doctrine\ORM\Id\UuidGenerator;
  24. use Doctrine\ORM\Mapping\Exception\CannotGenerateIds;
  25. use Doctrine\ORM\Mapping\Exception\InvalidCustomGenerator;
  26. use Doctrine\ORM\Mapping\Exception\UnknownGeneratorType;
  27. use Doctrine\Persistence\Mapping\AbstractClassMetadataFactory;
  28. use Doctrine\Persistence\Mapping\ClassMetadata as ClassMetadataInterface;
  29. use Doctrine\Persistence\Mapping\Driver\MappingDriver;
  30. use Doctrine\Persistence\Mapping\ReflectionService;
  31. use ReflectionClass;
  32. use ReflectionException;
  34. use function assert;
  35. use function class_exists;
  36. use function count;
  37. use function end;
  38. use function explode;
  39. use function get_class;
  40. use function in_array;
  41. use function is_subclass_of;
  42. use function str_contains;
  43. use function strlen;
  44. use function strtolower;
  45. use function substr;
  47. /**
  48.  * The ClassMetadataFactory is used to create ClassMetadata objects that contain all the
  49.  * metadata mapping information of a class which describes how a class should be mapped
  50.  * to a relational database.
  51.  *
  52.  * @extends AbstractClassMetadataFactory<ClassMetadata>
  53.  * @psalm-import-type AssociationMapping from ClassMetadata
  54.  * @psalm-import-type EmbeddedClassMapping from ClassMetadata
  55.  * @psalm-import-type FieldMapping from ClassMetadata
  56.  */
  57. class ClassMetadataFactory extends AbstractClassMetadataFactory
  58. {
  59.     /** @var EntityManagerInterface|null */
  60.     private $em;
  62.     /** @var AbstractPlatform|null */
  63.     private $targetPlatform;
  65.     /** @var MappingDriver */
  66.     private $driver;
  68.     /** @var EventManager */
  69.     private $evm;
  71.     /** @var mixed[] */
  72.     private $embeddablesActiveNesting = [];
  74.     /** @return void */
  75.     public function setEntityManager(EntityManagerInterface $em)
  76.     {
  77.         $this->em = $em;
  78.     }
  80.     /**
  81.      * {@inheritDoc}
  82.      */
  83.     protected function initialize()
  84.     {
  85.         $this->driver      = $this->em->getConfiguration()->getMetadataDriverImpl();
  86.         $this->evm         = $this->em->getEventManager();
  87.         $this->initialized = true;
  88.     }
  90.     /**
  91.      * {@inheritDoc}
  92.      */
  93.     protected function onNotFoundMetadata($className)
  94.     {
  95.         if (! $this->evm->hasListeners(Events::onClassMetadataNotFound)) {
  96.             return null;
  97.         }
  99.         $eventArgs = new OnClassMetadataNotFoundEventArgs($className, $this->em);
  101.         $this->evm->dispatchEvent(Events::onClassMetadataNotFound, $eventArgs);
  102.         $classMetadata = $eventArgs->getFoundMetadata();
  103.         assert($classMetadata instanceof ClassMetadata || $classMetadata === null);
  105.         return $classMetadata;
  106.     }
  108.     /**
  109.      * {@inheritDoc}
  110.      */
  111.     protected function doLoadMetadata($class, $parent, $rootEntityFound, array $nonSuperclassParents)
  112.     {
  113.         if ($parent) {
  114.             $class->setInheritanceType($parent->inheritanceType);
  115.             $class->setDiscriminatorColumn($parent->discriminatorColumn);
  116.             $this->inheritIdGeneratorMapping($class, $parent);
  117.             $this->addInheritedFields($class, $parent);
  118.             $this->addInheritedRelations($class, $parent);
  119.             $this->addInheritedEmbeddedClasses($class, $parent);
  120.             $class->setIdentifier($parent->identifier);
  121.             $class->setVersioned($parent->isVersioned);
  122.             $class->setVersionField($parent->versionField);
  123.             $class->setDiscriminatorMap($parent->discriminatorMap);
  124.             $class->addSubClasses($parent->subClasses);
  125.             $class->setLifecycleCallbacks($parent->lifecycleCallbacks);
  126.             $class->setChangeTrackingPolicy($parent->changeTrackingPolicy);
  128.             if (! empty($parent->customGeneratorDefinition)) {
  129.                 $class->setCustomGeneratorDefinition($parent->customGeneratorDefinition);
  130.             }
  132.             if ($parent->isMappedSuperclass) {
  133.                 $class->setCustomRepositoryClass($parent->customRepositoryClassName);
  134.             }
  135.         }
  137.         // Invoke driver
  138.         try {
  139.             $this->driver->loadMetadataForClass($class->getName(), $class);
  140.         } catch (ReflectionException $e) {
  141.             throw MappingException::reflectionFailure($class->getName(), $e);
  142.         }
  144.         // Complete id generator mapping when the generator was declared/added in this class
  145.         if ($class->identifier && (! $parent || ! $parent->identifier)) {
  146.             $this->completeIdGeneratorMapping($class);
  147.         }
  149.         if (! $class->isMappedSuperclass) {
  150.             if ($rootEntityFound && $class->isInheritanceTypeNone()) {
  151.                 Deprecation::trigger(
  152.                     'doctrine/orm',
  153.                     'https://github.com/doctrine/orm/pull/10431',
  154.                     "Entity class '%s' is a subclass of the root entity class '%s', but no inheritance mapping type was declared. This is a misconfiguration and will be an error in Doctrine ORM 3.0.",
  155.                     $class->name,
  156.                     end($nonSuperclassParents)
  157.                 );
  158.             }
  160.             foreach ($class->embeddedClasses as $property => $embeddableClass) {
  161.                 if (isset($embeddableClass['inherited'])) {
  162.                     continue;
  163.                 }
  165.                 if (isset($this->embeddablesActiveNesting[$embeddableClass['class']])) {
  166.                     throw MappingException::infiniteEmbeddableNesting($class->name, $property);
  167.                 }
  169.                 $this->embeddablesActiveNesting[$class->name] = true;
  171.                 $embeddableMetadata = $this->getMetadataFor($embeddableClass['class']);
  173.                 if ($embeddableMetadata->isEmbeddedClass) {
  174.                     $this->addNestedEmbeddedClasses($embeddableMetadata, $class, $property);
  175.                 }
  177.                 $identifier = $embeddableMetadata->getIdentifier();
  179.                 if (! empty($identifier)) {
  180.                     $this->inheritIdGeneratorMapping($class, $embeddableMetadata);
  181.                 }
  183.                 $class->inlineEmbeddable($property, $embeddableMetadata);
  185.                 unset($this->embeddablesActiveNesting[$class->name]);
  186.             }
  187.         }
  189.         if ($parent) {
  190.             if ($parent->isInheritanceTypeSingleTable()) {
  191.                 $class->setPrimaryTable($parent->table);
  192.             }
  194.             $this->addInheritedIndexes($class, $parent);
  196.             if ($parent->cache) {
  197.                 $class->cache = $parent->cache;
  198.             }
  200.             if ($parent->containsForeignIdentifier) {
  201.                 $class->containsForeignIdentifier = true;
  202.             }
  204.             if ($parent->containsEnumIdentifier) {
  205.                 $class->containsEnumIdentifier = true;
  206.             }
  208.             if (! empty($parent->namedQueries)) {
  209.                 $this->addInheritedNamedQueries($class, $parent);
  210.             }
  212.             if (! empty($parent->namedNativeQueries)) {
  213.                 $this->addInheritedNamedNativeQueries($class, $parent);
  214.             }
  216.             if (! empty($parent->sqlResultSetMappings)) {
  217.                 $this->addInheritedSqlResultSetMappings($class, $parent);
  218.             }
  220.             if (! empty($parent->entityListeners) && empty($class->entityListeners)) {
  221.                 $class->entityListeners = $parent->entityListeners;
  222.             }
  223.         }
  225.         $class->setParentClasses($nonSuperclassParents);
  227.         if ($class->isRootEntity() && ! $class->isInheritanceTypeNone() && ! $class->discriminatorMap) {
  228.             $this->addDefaultDiscriminatorMap($class);
  229.         }
  231.         // During the following event, there may also be updates to the discriminator map as per GH-1257/GH-8402.
  232.         // So, we must not discover the missing subclasses before that.
  234.         if ($this->evm->hasListeners(Events::loadClassMetadata)) {
  235.             $eventArgs = new LoadClassMetadataEventArgs($class, $this->em);
  236.             $this->evm->dispatchEvent(Events::loadClassMetadata, $eventArgs);
  237.         }
  239.         $this->findAbstractEntityClassesNotListedInDiscriminatorMap($class);
  241.         if ($class->changeTrackingPolicy === ClassMetadata::CHANGETRACKING_NOTIFY) {
  242.             Deprecation::trigger(
  243.                 'doctrine/orm',
  244.                 'https://github.com/doctrine/orm/issues/8383',
  245.                 'NOTIFY Change Tracking policy used in "%s" is deprecated, use deferred explicit instead.',
  246.                 $class->name
  247.             );
  248.         }
  250.         $this->validateRuntimeMetadata($class, $parent);
  251.     }
  253.     /**
  254.      * Validate runtime metadata is correctly defined.
  255.      *
  256.      * @param ClassMetadata               $class
  257.      * @param ClassMetadataInterface|null $parent
  258.      *
  259.      * @return void
  260.      *
  261.      * @throws MappingException
  262.      */
  263.     protected function validateRuntimeMetadata($class, $parent)
  264.     {
  265.         if (! $class->reflClass) {
  266.             // only validate if there is a reflection class instance
  267.             return;
  268.         }
  270.         $class->validateIdentifier();
  271.         $class->validateAssociations();
  272.         $class->validateLifecycleCallbacks($this->getReflectionService());
  274.         // verify inheritance
  275.         if (! $class->isMappedSuperclass && ! $class->isInheritanceTypeNone()) {
  276.             if (! $parent) {
  277.                 if (count($class->discriminatorMap) === 0) {
  278.                     throw MappingException::missingDiscriminatorMap($class->name);
  279.                 }
  281.                 if (! $class->discriminatorColumn) {
  282.                     throw MappingException::missingDiscriminatorColumn($class->name);
  283.                 }
  285.                 foreach ($class->subClasses as $subClass) {
  286.                     if ((new ReflectionClass($subClass))->name !== $subClass) {
  287.                         throw MappingException::invalidClassInDiscriminatorMap($subClass, $class->name);
  288.                     }
  289.                 }
  290.             } else {
  291.                 assert($parent instanceof ClassMetadataInfo); // https://github.com/doctrine/orm/issues/8746
  292.                 if (
  293.                     ! $class->reflClass->isAbstract()
  294.                     && ! in_array($class->name, $class->discriminatorMap, true)
  295.                 ) {
  296.                     throw MappingException::mappedClassNotPartOfDiscriminatorMap($class->name, $class->rootEntityName);
  297.                 }
  298.             }
  299.         } elseif ($class->isMappedSuperclass && $class->name === $class->rootEntityName && (count($class->discriminatorMap) || $class->discriminatorColumn)) {
  300.             // second condition is necessary for mapped superclasses in the middle of an inheritance hierarchy
  301.             throw MappingException::noInheritanceOnMappedSuperClass($class->name);
  302.         }
  303.     }
  305.     /**
  306.      * {@inheritDoc}
  307.      */
  308.     protected function newClassMetadataInstance($className)
  309.     {
  310.         return new ClassMetadata(
  311.             $className,
  312.             $this->em->getConfiguration()->getNamingStrategy(),
  313.             $this->em->getConfiguration()->getTypedFieldMapper()
  314.         );
  315.     }
  317.     /**
  318.      * Adds a default discriminator map if no one is given
  319.      *
  320.      * If an entity is of any inheritance type and does not contain a
  321.      * discriminator map, then the map is generated automatically. This process
  322.      * is expensive computation wise.
  323.      *
  324.      * The automatically generated discriminator map contains the lowercase short name of
  325.      * each class as key.
  326.      *
  327.      * @throws MappingException
  328.      */
  329.     private function addDefaultDiscriminatorMap(ClassMetadata $class): void
  330.     {
  331.         $allClasses = $this->driver->getAllClassNames();
  332.         $fqcn       = $class->getName();
  333.         $map        = [$this->getShortName($class->name) => $fqcn];
  335.         $duplicates = [];
  336.         foreach ($allClasses as $subClassCandidate) {
  337.             if (is_subclass_of($subClassCandidate, $fqcn)) {
  338.                 $shortName = $this->getShortName($subClassCandidate);
  340.                 if (isset($map[$shortName])) {
  341.                     $duplicates[] = $shortName;
  342.                 }
  344.                 $map[$shortName] = $subClassCandidate;
  345.             }
  346.         }
  348.         if ($duplicates) {
  349.             throw MappingException::duplicateDiscriminatorEntry($class->name, $duplicates, $map);
  350.         }
  352.         $class->setDiscriminatorMap($map);
  353.     }
  355.     private function findAbstractEntityClassesNotListedInDiscriminatorMap(ClassMetadata $rootEntityClass): void
  356.     {
  357.         // Only root classes in inheritance hierarchies need contain a discriminator map,
  358.         // so skip for other classes.
  359.         if (! $rootEntityClass->isRootEntity() || $rootEntityClass->isInheritanceTypeNone()) {
  360.             return;
  361.         }
  363.         $processedClasses = [$rootEntityClass->name => true];
  364.         foreach ($rootEntityClass->subClasses as $knownSubClass) {
  365.             $processedClasses[$knownSubClass] = true;
  366.         }
  368.         foreach ($rootEntityClass->discriminatorMap as $declaredClassName) {
  369.             // This fetches non-transient parent classes only
  370.             $parentClasses = $this->getParentClasses($declaredClassName);
  372.             foreach ($parentClasses as $parentClass) {
  373.                 if (isset($processedClasses[$parentClass])) {
  374.                     continue;
  375.                 }
  377.                 $processedClasses[$parentClass] = true;
  379.                 // All non-abstract entity classes must be listed in the discriminator map, and
  380.                 // this will be validated/enforced at runtime (possibly at a later time, when the
  381.                 // subclass is loaded, but anyways). Also, subclasses is about entity classes only.
  382.                 // That means we can ignore non-abstract classes here. The (expensive) driver
  383.                 // check for mapped superclasses need only be run for abstract candidate classes.
  384.                 if (! (new ReflectionClass($parentClass))->isAbstract() || $this->peekIfIsMappedSuperclass($parentClass)) {
  385.                     continue;
  386.                 }
  388.                 // We have found a non-transient, non-mapped-superclass = an entity class (possibly abstract, but that does not matter)
  389.                 $rootEntityClass->addSubClass($parentClass);
  390.             }
  391.         }
  392.     }
  394.     /** @param class-string $className */
  395.     private function peekIfIsMappedSuperclass(string $className): bool
  396.     {
  397.         $reflService = $this->getReflectionService();
  398.         $class       = $this->newClassMetadataInstance($className);
  399.         $this->initializeReflection($class, $reflService);
  401.         $this->driver->loadMetadataForClass($className, $class);
  403.         return $class->isMappedSuperclass;
  404.     }
  406.     /**
  407.      * Gets the lower-case short name of a class.
  408.      *
  409.      * @psalm-param class-string $className
  410.      */
  411.     private function getShortName(string $className): string
  412.     {
  413.         if (! str_contains($className, '\\')) {
  414.             return strtolower($className);
  415.         }
  417.         $parts = explode('\\', $className);
  419.         return strtolower(end($parts));
  420.     }
  422.     /**
  423.      * Puts the `inherited` and `declared` values into mapping information for fields, associations
  424.      * and embedded classes.
  425.      *
  426.      * @param AssociationMapping|EmbeddedClassMapping|FieldMapping $mapping
  427.      */
  428.     private function addMappingInheritanceInformation(array &$mapping, ClassMetadata $parentClass): void
  429.     {
  430.         if (! isset($mapping['inherited']) && ! $parentClass->isMappedSuperclass) {
  431.             $mapping['inherited'] = $parentClass->name;
  432.         }
  434.         if (! isset($mapping['declared'])) {
  435.             $mapping['declared'] = $parentClass->name;
  436.         }
  437.     }
  439.     /**
  440.      * Adds inherited fields to the subclass mapping.
  441.      */
  442.     private function addInheritedFields(ClassMetadata $subClass, ClassMetadata $parentClass): void
  443.     {
  444.         foreach ($parentClass->fieldMappings as $mapping) {
  445.             $this->addMappingInheritanceInformation($mapping, $parentClass);
  446.             $subClass->addInheritedFieldMapping($mapping);
  447.         }
  449.         foreach ($parentClass->reflFields as $name => $field) {
  450.             $subClass->reflFields[$name] = $field;
  451.         }
  452.     }
  454.     /**
  455.      * Adds inherited association mappings to the subclass mapping.
  456.      *
  457.      * @throws MappingException
  458.      */
  459.     private function addInheritedRelations(ClassMetadata $subClass, ClassMetadata $parentClass): void
  460.     {
  461.         foreach ($parentClass->associationMappings as $field => $mapping) {
  462.             $this->addMappingInheritanceInformation($mapping, $parentClass);
  463.             // When the class inheriting the relation ($subClass) is the first entity class since the
  464.             // relation has been defined in a mapped superclass (or in a chain
  465.             // of mapped superclasses) above, then declare this current entity class as the source of
  466.             // the relationship.
  467.             // According to the definitions given in https://github.com/doctrine/orm/pull/10396/,
  468.             // this is the case <=> ! isset($mapping['inherited']).
  469.             if (! isset($mapping['inherited'])) {
  470.                 $mapping['sourceEntity'] = $subClass->name;
  471.             }
  473.             $subClass->addInheritedAssociationMapping($mapping);
  474.         }
  475.     }
  477.     private function addInheritedEmbeddedClasses(ClassMetadata $subClass, ClassMetadata $parentClass): void
  478.     {
  479.         foreach ($parentClass->embeddedClasses as $field => $embeddedClass) {
  480.             $this->addMappingInheritanceInformation($embeddedClass, $parentClass);
  481.             $subClass->embeddedClasses[$field] = $embeddedClass;
  482.         }
  483.     }
  485.     /**
  486.      * Adds nested embedded classes metadata to a parent class.
  487.      *
  488.      * @param ClassMetadata $subClass    Sub embedded class metadata to add nested embedded classes metadata from.
  489.      * @param ClassMetadata $parentClass Parent class to add nested embedded classes metadata to.
  490.      * @param string        $prefix      Embedded classes' prefix to use for nested embedded classes field names.
  491.      */
  492.     private function addNestedEmbeddedClasses(
  493.         ClassMetadata $subClass,
  494.         ClassMetadata $parentClass,
  495.         string $prefix
  496.     ): void {
  497.         foreach ($subClass->embeddedClasses as $property => $embeddableClass) {
  498.             if (isset($embeddableClass['inherited'])) {
  499.                 continue;
  500.             }
  502.             $embeddableMetadata = $this->getMetadataFor($embeddableClass['class']);
  504.             $parentClass->mapEmbedded(
  505.                 [
  506.                     'fieldName' => $prefix . '.' . $property,
  507.                     'class' => $embeddableMetadata->name,
  508.                     'columnPrefix' => $embeddableClass['columnPrefix'],
  509.                     'declaredField' => $embeddableClass['declaredField']
  510.                             ? $prefix . '.' . $embeddableClass['declaredField']
  511.                             : $prefix,
  512.                     'originalField' => $embeddableClass['originalField'] ?: $property,
  513.                 ]
  514.             );
  515.         }
  516.     }
  518.     /**
  519.      * Copy the table indices from the parent class superclass to the child class
  520.      */
  521.     private function addInheritedIndexes(ClassMetadata $subClass, ClassMetadata $parentClass): void
  522.     {
  523.         if (! $parentClass->isMappedSuperclass) {
  524.             return;
  525.         }
  527.         foreach (['uniqueConstraints', 'indexes'] as $indexType) {
  528.             if (isset($parentClass->table[$indexType])) {
  529.                 foreach ($parentClass->table[$indexType] as $indexName => $index) {
  530.                     if (isset($subClass->table[$indexType][$indexName])) {
  531.                         continue; // Let the inheriting table override indices
  532.                     }
  534.                     $subClass->table[$indexType][$indexName] = $index;
  535.                 }
  536.             }
  537.         }
  538.     }
  540.     /**
  541.      * Adds inherited named queries to the subclass mapping.
  542.      */
  543.     private function addInheritedNamedQueries(ClassMetadata $subClass, ClassMetadata $parentClass): void
  544.     {
  545.         foreach ($parentClass->namedQueries as $name => $query) {
  546.             if (! isset($subClass->namedQueries[$name])) {
  547.                 $subClass->addNamedQuery(
  548.                     [
  549.                         'name'  => $query['name'],
  550.                         'query' => $query['query'],
  551.                     ]
  552.                 );
  553.             }
  554.         }
  555.     }
  557.     /**
  558.      * Adds inherited named native queries to the subclass mapping.
  559.      */
  560.     private function addInheritedNamedNativeQueries(ClassMetadata $subClass, ClassMetadata $parentClass): void
  561.     {
  562.         foreach ($parentClass->namedNativeQueries as $name => $query) {
  563.             if (! isset($subClass->namedNativeQueries[$name])) {
  564.                 $subClass->addNamedNativeQuery(
  565.                     [
  566.                         'name'              => $query['name'],
  567.                         'query'             => $query['query'],
  568.                         'isSelfClass'       => $query['isSelfClass'],
  569.                         'resultSetMapping'  => $query['resultSetMapping'],
  570.                         'resultClass'       => $query['isSelfClass'] ? $subClass->name : $query['resultClass'],
  571.                     ]
  572.                 );
  573.             }
  574.         }
  575.     }
  577.     /**
  578.      * Adds inherited sql result set mappings to the subclass mapping.
  579.      */
  580.     private function addInheritedSqlResultSetMappings(ClassMetadata $subClass, ClassMetadata $parentClass): void
  581.     {
  582.         foreach ($parentClass->sqlResultSetMappings as $name => $mapping) {
  583.             if (! isset($subClass->sqlResultSetMappings[$name])) {
  584.                 $entities = [];
  585.                 foreach ($mapping['entities'] as $entity) {
  586.                     $entities[] = [
  587.                         'fields'                => $entity['fields'],
  588.                         'isSelfClass'           => $entity['isSelfClass'],
  589.                         'discriminatorColumn'   => $entity['discriminatorColumn'],
  590.                         'entityClass'           => $entity['isSelfClass'] ? $subClass->name : $entity['entityClass'],
  591.                     ];
  592.                 }
  594.                 $subClass->addSqlResultSetMapping(
  595.                     [
  596.                         'name'          => $mapping['name'],
  597.                         'columns'       => $mapping['columns'],
  598.                         'entities'      => $entities,
  599.                     ]
  600.                 );
  601.             }
  602.         }
  603.     }
  605.     /**
  606.      * Completes the ID generator mapping. If "auto" is specified we choose the generator
  607.      * most appropriate for the targeted database platform.
  608.      *
  609.      * @throws ORMException
  610.      */
  611.     private function completeIdGeneratorMapping(ClassMetadataInfo $class): void
  612.     {
  613.         $idGenType = $class->generatorType;
  614.         if ($idGenType === ClassMetadata::GENERATOR_TYPE_AUTO) {
  615.             $class->setIdGeneratorType($this->determineIdGeneratorStrategy($this->getTargetPlatform()));
  616.         }
  618.         // Create & assign an appropriate ID generator instance
  619.         switch ($class->generatorType) {
  620.             case ClassMetadata::GENERATOR_TYPE_IDENTITY:
  621.                 $sequenceName = null;
  622.                 $fieldName    = $class->identifier ? $class->getSingleIdentifierFieldName() : null;
  623.                 $platform     = $this->getTargetPlatform();
  625.                 // Platforms that do not have native IDENTITY support need a sequence to emulate this behaviour.
  626.                 /** @psalm-suppress UndefinedClass, InvalidClass */
  627.                 if (! $platform instanceof MySQLPlatform && ! $platform instanceof SqlitePlatform && ! $platform instanceof SQLServerPlatform && $platform->usesSequenceEmulatedIdentityColumns()) {
  628.                     Deprecation::trigger(
  629.                         'doctrine/orm',
  630.                         'https://github.com/doctrine/orm/issues/8850',
  631.                         <<<'DEPRECATION'
  632. Context: Loading metadata for class %s
  633. Problem: Using the IDENTITY generator strategy with platform "%s" is deprecated and will not be possible in Doctrine ORM 3.0.
  634. Solution: Use the SEQUENCE generator strategy instead.
  635. DEPRECATION
  636.                             ,
  637.                         $class->name,
  638.                         get_class($this->getTargetPlatform())
  639.                     );
  640.                     $columnName     = $class->getSingleIdentifierColumnName();
  641.                     $quoted         = isset($class->fieldMappings[$fieldName]['quoted']) || isset($class->table['quoted']);
  642.                     $sequencePrefix = $class->getSequencePrefix($this->getTargetPlatform());
  643.                     $sequenceName   = $this->getTargetPlatform()->getIdentitySequenceName($sequencePrefix, $columnName);
  644.                     $definition     = [
  645.                         'sequenceName' => $this->truncateSequenceName($sequenceName),
  646.                     ];
  648.                     if ($quoted) {
  649.                         $definition['quoted'] = true;
  650.                     }
  652.                     $sequenceName = $this
  653.                         ->em
  654.                         ->getConfiguration()
  655.                         ->getQuoteStrategy()
  656.                         ->getSequenceName($definition, $class, $this->getTargetPlatform());
  657.                 }
  659.                 $generator = $fieldName && $class->fieldMappings[$fieldName]['type'] === 'bigint'
  660.                     ? new BigIntegerIdentityGenerator($sequenceName)
  661.                     : new IdentityGenerator($sequenceName);
  663.                 $class->setIdGenerator($generator);
  665.                 break;
  667.             case ClassMetadata::GENERATOR_TYPE_SEQUENCE:
  668.                 // If there is no sequence definition yet, create a default definition
  669.                 $definition = $class->sequenceGeneratorDefinition;
  671.                 if (! $definition) {
  672.                     $fieldName    = $class->getSingleIdentifierFieldName();
  673.                     $sequenceName = $class->getSequenceName($this->getTargetPlatform());
  674.                     $quoted       = isset($class->fieldMappings[$fieldName]['quoted']) || isset($class->table['quoted']);
  676.                     $definition = [
  677.                         'sequenceName'      => $this->truncateSequenceName($sequenceName),
  678.                         'allocationSize'    => 1,
  679.                         'initialValue'      => 1,
  680.                     ];
  682.                     if ($quoted) {
  683.                         $definition['quoted'] = true;
  684.                     }
  686.                     $class->setSequenceGeneratorDefinition($definition);
  687.                 }
  689.                 $sequenceGenerator = new SequenceGenerator(
  690.                     $this->em->getConfiguration()->getQuoteStrategy()->getSequenceName($definition, $class, $this->getTargetPlatform()),
  691.                     (int) $definition['allocationSize']
  692.                 );
  693.                 $class->setIdGenerator($sequenceGenerator);
  694.                 break;
  696.             case ClassMetadata::GENERATOR_TYPE_NONE:
  697.                 $class->setIdGenerator(new AssignedGenerator());
  698.                 break;
  700.             case ClassMetadata::GENERATOR_TYPE_UUID:
  701.                 Deprecation::trigger(
  702.                     'doctrine/orm',
  703.                     'https://github.com/doctrine/orm/issues/7312',
  704.                     'Mapping for %s: the "UUID" id generator strategy is deprecated with no replacement',
  705.                     $class->name
  706.                 );
  707.                 $class->setIdGenerator(new UuidGenerator());
  708.                 break;
  710.             case ClassMetadata::GENERATOR_TYPE_CUSTOM:
  711.                 $definition = $class->customGeneratorDefinition;
  712.                 if ($definition === null) {
  713.                     throw InvalidCustomGenerator::onClassNotConfigured();
  714.                 }
  716.                 if (! class_exists($definition['class'])) {
  717.                     throw InvalidCustomGenerator::onMissingClass($definition);
  718.                 }
  720.                 $class->setIdGenerator(new $definition['class']());
  721.                 break;
  723.             default:
  724.                 throw UnknownGeneratorType::create($class->generatorType);
  725.         }
  726.     }
  728.     /** @psalm-return ClassMetadata::GENERATOR_TYPE_SEQUENCE|ClassMetadata::GENERATOR_TYPE_IDENTITY */
  729.     private function determineIdGeneratorStrategy(AbstractPlatform $platform): int
  730.     {
  731.         if (
  732.             $platform instanceof Platforms\OraclePlatform
  733.             || $platform instanceof Platforms\PostgreSQLPlatform
  734.         ) {
  735.             return ClassMetadata::GENERATOR_TYPE_SEQUENCE;
  736.         }
  738.         if ($platform->supportsIdentityColumns()) {
  739.             return ClassMetadata::GENERATOR_TYPE_IDENTITY;
  740.         }
  742.         if ($platform->supportsSequences()) {
  743.             return ClassMetadata::GENERATOR_TYPE_SEQUENCE;
  744.         }
  746.         throw CannotGenerateIds::withPlatform($platform);
  747.     }
  749.     private function truncateSequenceName(string $schemaElementName): string
  750.     {
  751.         $platform = $this->getTargetPlatform();
  752.         if (! $platform instanceof Platforms\OraclePlatform && ! $platform instanceof Platforms\SQLAnywherePlatform) {
  753.             return $schemaElementName;
  754.         }
  756.         $maxIdentifierLength = $platform->getMaxIdentifierLength();
  758.         if (strlen($schemaElementName) > $maxIdentifierLength) {
  759.             return substr($schemaElementName, 0, $maxIdentifierLength);
  760.         }
  762.         return $schemaElementName;
  763.     }
  765.     /**
  766.      * Inherits the ID generator mapping from a parent class.
  767.      */
  768.     private function inheritIdGeneratorMapping(ClassMetadataInfo $class, ClassMetadataInfo $parent): void
  769.     {
  770.         if ($parent->isIdGeneratorSequence()) {
  771.             $class->setSequenceGeneratorDefinition($parent->sequenceGeneratorDefinition);
  772.         }
  774.         if ($parent->generatorType) {
  775.             $class->setIdGeneratorType($parent->generatorType);
  776.         }
  778.         if ($parent->idGenerator) {
  779.             $class->setIdGenerator($parent->idGenerator);
  780.         }
  781.     }
  783.     /**
  784.      * {@inheritDoc}
  785.      */
  786.     protected function wakeupReflection(ClassMetadataInterface $class, ReflectionService $reflService)
  787.     {
  788.         assert($class instanceof ClassMetadata);
  789.         $class->wakeupReflection($reflService);
  790.     }
  792.     /**
  793.      * {@inheritDoc}
  794.      */
  795.     protected function initializeReflection(ClassMetadataInterface $class, ReflectionService $reflService)
  796.     {
  797.         assert($class instanceof ClassMetadata);
  798.         $class->initializeReflection($reflService);
  799.     }
  801.     /**
  802.      * @deprecated This method will be removed in ORM 3.0.
  803.      *
  804.      * @return class-string
  805.      */
  806.     protected function getFqcnFromAlias($namespaceAlias, $simpleClassName)
  807.     {
  808.         /** @psalm-var class-string */
  809.         return $this->em->getConfiguration()->getEntityNamespace($namespaceAlias) . '\\' . $simpleClassName;
  810.     }
  812.     /**
  813.      * {@inheritDoc}
  814.      */
  815.     protected function getDriver()
  816.     {
  817.         return $this->driver;
  818.     }
  820.     /**
  821.      * {@inheritDoc}
  822.      */
  823.     protected function isEntity(ClassMetadataInterface $class)
  824.     {
  825.         return ! $class->isMappedSuperclass;
  826.     }
  828.     private function getTargetPlatform(): Platforms\AbstractPlatform
  829.     {
  830.         if (! $this->targetPlatform) {
  831.             $this->targetPlatform = $this->em->getConnection()->getDatabasePlatform();
  832.         }
  834.         return $this->targetPlatform;
  835.     }
  836. }