Doctrine\ORM\Mapping\ClassMetadataFactory

Complexity

Total Complexity

63

Size/Duplication

Total Lines	340
Duplicated Lines	0 %

Test Coverage

Coverage

86.71%

Importance

Changes

0

16 Methods

Rating	Name	Duplication	Size	Complexity
A	setEntityManager()	0	3	1
A	isEntity()	0	3	2
A	initialize()	0	5	1
A	buildValueGenerationPlan()	0	19	3
A	buildValueGenerationExecutorList()	0	13	3
C	completeFieldIdentifierGeneratorMapping()	0	56	12
A	getTargetPlatform()	0	7	2
A	getDriver()	0	3	1
A	doLoadMetadata()	0	20	2
A	completeIdentifierGeneratorMappings()	0	8	3
A	loadMetadata()	0	7	1
B	validateRuntimeMetadata()	0	25	11
B	resolveDiscriminatorValue()	0	26	10
B	completeRuntimeMetadata()	0	28	8
A	onNotFoundMetadata()	0	13	2
A	newClassMetadataBuildingContext()	0	6	1

<?php

declare(strict_types=1);

namespace Doctrine\ORM\Mapping;

use Doctrine\Common\EventManager;
use Doctrine\DBAL\Platforms;
use Doctrine\DBAL\Platforms\AbstractPlatform;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\Event\LoadClassMetadataEventArgs;
use Doctrine\ORM\Event\OnClassMetadataNotFoundEventArgs;
use Doctrine\ORM\Events;
use Doctrine\ORM\Exception\ORMException;
use Doctrine\ORM\Mapping\Exception\TableGeneratorNotImplementedYet;
use Doctrine\ORM\Mapping\Exception\UnknownGeneratorType;
use Doctrine\ORM\Sequencing\Planning\CompositeValueGenerationPlan;
use Doctrine\ORM\Sequencing\Planning\NoopValueGenerationPlan;
use Doctrine\ORM\Sequencing\Planning\SingleValueGenerationPlan;
use Doctrine\ORM\Sequencing\Planning\ValueGenerationExecutor;
use InvalidArgumentException;
use ReflectionException;
use function array_map;
use function count;
use function in_array;
use function reset;
use function sprintf;

/**
 * The ClassMetadataFactory is used to create ClassMetadata objects that contain all the
 * metadata mapping information of a class which describes how a class should be mapped
 * to a relational database.
 */
class ClassMetadataFactory extends AbstractClassMetadataFactory
{
    /** @var EntityManagerInterface|null */
    private $em;

    /** @var AbstractPlatform */
    private $targetPlatform;

    /** @var Driver\MappingDriver */
    private $driver;

    /** @var EventManager */
    private $evm;

    /**
     * {@inheritdoc}
     */
    protected function loadMetadata(string $name, ClassMetadataBuildingContext $metadataBuildingContext) : array
    {
        $loaded = parent::loadMetadata($name, $metadataBuildingContext);

        array_map([$this, 'resolveDiscriminatorValue'], $loaded);

        return $loaded;
    }

    public function setEntityManager(EntityManagerInterface $em)
    {
        $this->em = $em;
    }

    /**
     * {@inheritdoc}
     *
     * @throws ORMException
     */
    protected function initialize() : void
    {
        $this->driver      = $this->em->getConfiguration()->getMetadataDriverImpl();

The method getConfiguration() does not exist on null.

        $this->evm         = $this->em->getEventManager();
        $this->initialized = true;
    }

    /**
     * {@inheritdoc}
     */
    protected function onNotFoundMetadata(
        string $className,
        ClassMetadataBuildingContext $metadataBuildingContext
    ) : ?ClassMetadata {
        if (! $this->evm->hasListeners(Events::onClassMetadataNotFound)) {
            return null;
        }

        $eventArgs = new OnClassMetadataNotFoundEventArgs($className, $metadataBuildingContext, $this->em);

It seems like $this->em can also be of type null; however, parameter $entityManager of Doctrine\ORM\Event\OnClassMetadataNotFoundEventArgs::__construct() does only seem to accept Doctrine\ORM\EntityManagerInterface, maybe add an additional type check?

        $this->evm->dispatchEvent(Events::onClassMetadataNotFound, $eventArgs);

        return $eventArgs->getFoundMetadata();
    }

    /**
     * {@inheritdoc}
     *
     * @throws MappingException
     * @throws ORMException
     */
    protected function doLoadMetadata(
        string $className,
        ?ClassMetadata $parent,
        ClassMetadataBuildingContext $metadataBuildingContext
    ) : ClassMetadata {
        $classMetadata = $this->driver->loadMetadataForClass($className, $parent, $metadataBuildingContext);

        $this->completeIdentifierGeneratorMappings($classMetadata);
        $this->completeRuntimeMetadata($classMetadata, $parent);

        if ($this->evm->hasListeners(Events::loadClassMetadata)) {
            $eventArgs = new LoadClassMetadataEventArgs($classMetadata, $this->em);

It seems like $this->em can also be of type null; however, parameter $entityManager of Doctrine\ORM\Event\LoadClassMetadataEventArgs::__construct() does only seem to accept Doctrine\ORM\EntityManagerInterface, maybe add an additional type check?

            $this->evm->dispatchEvent(Events::loadClassMetadata, $eventArgs);
        }

        $this->buildValueGenerationPlan($classMetadata);
        $this->validateRuntimeMetadata($classMetadata, $parent);

        return $classMetadata;
    }

    protected function completeRuntimeMetadata(ClassMetadata $class, ?ClassMetadata $parent = null) : void
    {
        if (! $parent || ! $parent->isMappedSuperclass) {
            return;
        }

        if ($class->isMappedSuperclass) {
            return;
        }

        $tableName = $class->getTableName();

        // Resolve column table names
        foreach ($class->getDeclaredPropertiesIterator() as $property) {
            if ($property instanceof FieldMetadata) {
                $property->setTableName($property->getTableName() ?? $tableName);

                continue;
            }

            if (! ($property instanceof ToOneAssociationMetadata)) {
                continue;
            }

            // Resolve association join column table names
            foreach ($property->getJoinColumns() as $joinColumn) {
                /** @var JoinColumnMetadata $joinColumn */
                $joinColumn->setTableName($joinColumn->getTableName() ?? $tableName);
            }
        }
    }

    /**
     * Validate runtime metadata is correctly defined.
     *
     * @throws MappingException
     */
    protected function validateRuntimeMetadata(ClassMetadata $class, ?ClassMetadata $parent = null) : void
    {
        if (! $class->getReflectionClass()) {
            // only validate if there is a reflection class instance
            return;
        }

        $class->validateIdentifier();
        $class->validateAssociations();
        $class->validateLifecycleCallbacks($this->getReflectionService());

        // verify inheritance
        if (! $class->isMappedSuperclass && $class->inheritanceType !== InheritanceType::NONE) {
            if (! $parent) {
                if (! $class->discriminatorMap) {

The expression $class->discriminatorMap of type string[] is implicitly converted to a boolean; are you sure this is intended? If so, consider using empty($expr) instead to make it clear that you intend to check for an array without elements.

                    throw MappingException::missingDiscriminatorMap($class->getClassName());
                }

                if (! $class->discriminatorColumn) {
                    throw MappingException::missingDiscriminatorColumn($class->getClassName());
                }
            }
        } elseif (($class->discriminatorMap || $class->discriminatorColumn) && $class->isMappedSuperclass && $class->isRootEntity()) {

The expression $class->discriminatorMap of type string[] is implicitly converted to a boolean; are you sure this is intended? If so, consider using ! empty($expr) instead to make it clear that you intend to check for an array without elements.

            // second condition is necessary for mapped superclasses in the middle of an inheritance hierarchy
            throw MappingException::noInheritanceOnMappedSuperClass($class->getClassName());
        }
    }

    /**
     * {@inheritdoc}
     */
    protected function newClassMetadataBuildingContext() : ClassMetadataBuildingContext
    {
        return new ClassMetadataBuildingContext(
            $this,
            $this->getReflectionService(),
            $this->em->getConfiguration()->getNamingStrategy()
        );
    }

    /**
     * Populates the discriminator value of the given metadata (if not set) by iterating over discriminator
     * map classes and looking for a fitting one.
     *
     * @throws InvalidArgumentException
     * @throws ReflectionException
     * @throws MappingException
     */
    private function resolveDiscriminatorValue(ClassMetadata $metadata) : void
    {
        if ($metadata->discriminatorValue || ! $metadata->discriminatorMap || $metadata->isMappedSuperclass ||

The expression $metadata->discriminatorMap of type string[] is implicitly converted to a boolean; are you sure this is intended? If so, consider using empty($expr) instead to make it clear that you intend to check for an array without elements.

            ! $metadata->getReflectionClass() || $metadata->getReflectionClass()->isAbstract()) {
            return;
        }

        // minor optimization: avoid loading related metadata when not needed
        foreach ($metadata->discriminatorMap as $discriminatorValue => $discriminatorClass) {
            if ($discriminatorClass === $metadata->getClassName()) {
                $metadata->discriminatorValue = $discriminatorValue;

                return;
            }
        }

        // iterate over discriminator mappings and resolve actual referenced classes according to existing metadata
        foreach ($metadata->discriminatorMap as $discriminatorValue => $discriminatorClass) {
            if ($metadata->getClassName() === $this->getMetadataFor($discriminatorClass)->getClassName()) {
                $metadata->discriminatorValue = $discriminatorValue;

                return;
            }
        }

        throw MappingException::mappedClassNotPartOfDiscriminatorMap($metadata->getClassName(), $metadata->getRootClassName());
    }

    /**
     * Completes the ID generator mapping. If "auto" is specified we choose the generator
     * most appropriate for the targeted database platform.
     *
     * @throws ORMException
     */
    private function completeIdentifierGeneratorMappings(ClassMetadata $class) : void
    {
        foreach ($class->getDeclaredPropertiesIterator() as $property) {
            if (! $property instanceof FieldMetadata /*&& ! $property instanceof AssociationMetadata*/) {
                continue;
            }

            $this->completeFieldIdentifierGeneratorMapping($property);
        }
    }

    private function completeFieldIdentifierGeneratorMapping(FieldMetadata $field)
    {
        if (! $field->hasValueGenerator()) {
            return;
        }

        $platform  = $this->getTargetPlatform();
        $class     = $field->getDeclaringClass();

The assignment to $class is dead and can be removed.

        $generator = $field->getValueGenerator();

        if (in_array($generator->getType(), [GeneratorType::AUTO, GeneratorType::IDENTITY], true)) {
            $generatorType = $platform->prefersSequences() || $platform->usesSequenceEmulatedIdentityColumns()
                ? GeneratorType::SEQUENCE
                : ($platform->prefersIdentityColumns() ? GeneratorType::IDENTITY : GeneratorType::TABLE);

            $generator = new ValueGeneratorMetadata($generatorType, $field->getValueGenerator()->getDefinition());

            $field->setValueGenerator($generator);
        }

        // Validate generator definition and set defaults where needed
        switch ($generator->getType()) {
            case GeneratorType::SEQUENCE:
                // If there is no sequence definition yet, create a default definition
                if ($generator->getDefinition()) {
                    break;
                }

                // @todo guilhermeblanco Move sequence generation to DBAL
                $sequencePrefix = $platform->getSequencePrefix($field->getTableName(), $field->getSchemaName());

The method getSchemaName() does not exist on Doctrine\ORM\Mapping\FieldMetadata.

                $idSequenceName = sprintf('%s_%s_seq', $sequencePrefix, $field->getColumnName());
                $sequenceName   = $platform->fixSchemaElementName($idSequenceName);

                $field->setValueGenerator(
                    new ValueGeneratorMetadata(
                        $generator->getType(),
                        [
                            'sequenceName'   => $sequenceName,
                            'allocationSize' => 1,
                        ]
                    )
                );

                break;

            case GeneratorType::TABLE:
                throw TableGeneratorNotImplementedYet::create();
                break;

            case GeneratorType::CUSTOM:
            case GeneratorType::IDENTITY:
            case GeneratorType::NONE:
                break;

            default:
                throw UnknownGeneratorType::create($generator->getType());
        }
    }

    /**
     * {@inheritDoc}
     */
    protected function getDriver() : Driver\MappingDriver
    {
        return $this->driver;
    }

    /**
     * {@inheritDoc}
     */
    protected function isEntity(ClassMetadata $class) : bool
    {
        return isset($class->isMappedSuperclass) && $class->isMappedSuperclass === false;
    }

    private function getTargetPlatform() : Platforms\AbstractPlatform
    {
        if (! $this->targetPlatform) {
            $this->targetPlatform = $this->em->getConnection()->getDatabasePlatform();
        }

        return $this->targetPlatform;
    }

    private function buildValueGenerationPlan(ClassMetadata $class) : void
    {
        $valueGenerationExecutorList = $this->buildValueGenerationExecutorList($class);

        switch (count($valueGenerationExecutorList)) {
            case 0:
                $valueGenerationPlan = new NoopValueGenerationPlan();
                break;

            case 1:
                $valueGenerationPlan = new SingleValueGenerationPlan($class, reset($valueGenerationExecutorList));
                break;

            default:
                $valueGenerationPlan = new CompositeValueGenerationPlan($class, $valueGenerationExecutorList);
                break;
        }

        $class->setValueGenerationPlan($valueGenerationPlan);
    }

    /**
     * @return ValueGenerationExecutor[]
     */
    private function buildValueGenerationExecutorList(ClassMetadata $class) : array
    {
        $executors = [];

        foreach ($class->getDeclaredPropertiesIterator() as $property) {
            $executor = $property->getValueGenerationExecutor($this->getTargetPlatform());

            if ($executor instanceof ValueGenerationExecutor) {
                $executors[$property->getName()] = $executor;
            }
        }

        return $executors;
    }
}