Bankiru\Api\Doctrine\Mapping\EntityMetadata

Complexity

Total Complexity

147

Size/Duplication

Total Lines	826
Duplicated Lines	2.18 %

Coupling/Cohesion

Components	2
Dependencies	4

Test Coverage

Coverage

77.91%

Importance

Changes

0

70 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	5	1
A	containsForeignIdentifier()	0	4	1
A	getReflectionProperties()	0	4	1
A	getReflectionProperty()	0	8	2
A	getName()	0	4	1
A	getMethodContainer()	0	4	1
A	getRepositoryClass()	0	4	1
A	getIdentifier()	0	4	1
A	setIdentifier()	0	5	1
A	getReflectionClass()	0	8	2
A	isIdentifier()	0	4	1
A	hasField()	0	4	1
A	getFieldNames()	0	4	1
A	hasAssociation()	0	4	1
A	getAssociationNames()	0	4	1
A	isSingleValuedAssociation()	0	4	2
A	isCollectionValuedAssociation()	0	4	2
A	getIdentifierFieldNames()	0	4	1
A	getTypeOfField()	0	4	1
A	getAssociationTargetClass()	0	4	1
A	isAssociationInverseSide()	0	6	1
A	getAssociationMappedByTargetField()	0	4	1
B	getIdentifierValues()	0	21	5
B	wakeupReflection()	8	16	6
A	initializeReflection()	0	8	2
A	getApiFactory()	0	8	2
A	getClientName()	0	8	2
A	mapField()	0	6	1
A	getFieldMapping()	0	8	2
A	getAssociationMapping()	0	8	2
A	setCustomRepositoryClass()	0	4	1
A	addInheritedFieldMapping()	0	6	1
A	getFieldName()	0	4	1
A	getApiFieldName()	0	4	1
A	hasApiField()	0	4	1
A	mapOneToMany()	0	6	1
A	mapManyToOne()	0	6	1
A	mapOneToOne()	0	6	1
A	newInstance()	0	4	1
A	isIdentifierComposite()	0	4	1
A	getRootEntityName()	0	4	1
A	assignIdentifier()	0	6	2
A	addInheritedAssociationMapping()	0	6	1
A	getSubclasses()	0	4	1
A	getAssociationMappings()	0	4	1
A	isReadOnly()	0	4	1
A	setChangeTrackingPolicy()	0	4	1
A	isChangeTrackingDeferredExplicit()	0	4	1
A	isChangeTrackingDeferredImplicit()	0	4	1
A	isChangeTrackingNotify()	0	4	1
A	mapIdentifier()	0	6	1
A	setIdGeneratorType()	0	4	1
A	isIdentifierNatural()	0	4	1
A	isIdentifierRemote()	0	4	1
A	setIdentifierValues()	0	6	2
A	isRootEntity()	0	4	1
B	setDiscriminatorField()	0	21	7
A	setDiscriminatorMap()	0	6	2
B	addDiscriminatorMapClass()	0	17	6
B	fullyQualifiedClassName()	0	10	5
F	validateAndCompleteAssociationMapping()	10	89	25
A	storeMapping()	0	8	1
C	validateAndCompleteFieldMapping()	0	24	7
A	assertFieldNotMapped()	0	9	4
A	validateAndCompleteOneToManyMapping()	0	16	4
A	assertMappingOrderBy()	0	8	3
A	validateAndCompleteOneToOneMapping()	0	12	4
A	getDiscriminatorField()	0	4	1
A	getDiscriminatorMap()	0	4	1
A	getDiscriminatorValue()	0	4	1

<?php

namespace Bankiru\Api\Doctrine\Mapping;

use Bankiru\Api\Doctrine\EntityRepository;
use Bankiru\Api\Doctrine\Exception\MappingException;
use Bankiru\Api\Doctrine\Rpc\Method\MethodProviderInterface;
use Doctrine\Common\Persistence\Mapping\ReflectionService;
use Doctrine\Instantiator\Instantiator;
use Doctrine\Instantiator\InstantiatorInterface;

class EntityMetadata implements ApiMetadata
{
    /**
     * The ReflectionProperty instances of the mapped class.
     *
     * @var \ReflectionProperty[]
     */
    public $reflFields = [];
    /** @var string */
    public $name;
    /** @var string */
    public $namespace;
    /** @var string */
    public $rootEntityName;
    /** @var string[] */
    public $identifier = [];
    /** @var array */
    public $fields = [];
    /** @var array */
    public $associations = [];
    /** @var string */
    public $repositoryClass = EntityRepository::class;
    /** @var \ReflectionClass */
    public $reflClass;
    /** @var MethodProviderInterface */
    public $methodProvider;
    /** @var string */
    public $clientName;
    /** @var string */
    public $apiFactory;
    /** @var string[] */
    public $apiFieldNames = [];
    /** @var string[] */
    public $fieldNames = [];
    /** @var bool */
    public $isMappedSuperclass = false;
    /** @var bool */
    public $containsForeignIdentifier;
    /** @var bool */
    public $isIdentifierComposite = false;
    /** @var int */
    public $generatorType = self::GENERATOR_TYPE_NATURAL;
    /** @var string[] */
    public $discriminatorField;
    /** @var string[] */
    public $discriminatorMap;
    /** @var string */
    public $discriminatorValue;
    /** @var string[] */
    public $subclasses = [];
    /** @var InstantiatorInterface */
    private $instantiator;
    /** @var int */
    private $changeTrackingPolicy = self::CHANGETRACKING_DEFERRED_IMPLICIT;

    /**
     * Initializes a new ClassMetadata instance that will hold the object-relational mapping
     * metadata of the class with the given name.
     *
     * @param string $entityName The name of the entity class the new instance is used for.
     */
    public function __construct($entityName)
    {
        $this->name           = $entityName;
        $this->rootEntityName = $entityName;
    }

    /**
     * @return boolean
     */
    public function containsForeignIdentifier()
    {
        return $this->containsForeignIdentifier;
    }

    /** {@inheritdoc} */
    public function getReflectionProperties()
    {
        return $this->reflFields;
    }

    /**
     * {@inheritdoc}
     */
    public function getReflectionProperty($name)
    {
        if (!array_key_exists($name, $this->reflFields)) {
            throw MappingException::noSuchProperty($name, $this->getName());
        }

        return $this->reflFields[$name];
    }

    /** {@inheritdoc} */
    public function getName()
    {
        return $this->name;
    }

    /** {@inheritdoc} */
    public function getMethodContainer()
    {
        return $this->methodProvider;
    }

    /** {@inheritdoc} */
    public function getRepositoryClass()
    {
        return $this->repositoryClass;
    }

    /** {@inheritdoc} */
    public function getIdentifier()
    {
        return $this->identifier;
    }

    public function setIdentifier($identifier)
    {
        $this->identifier            = $identifier;
        $this->isIdentifierComposite = (count($this->identifier) > 1);
    }

    /** {@inheritdoc} */
    public function getReflectionClass()
    {
        if (null === $this->reflClass) {
            $this->reflClass = new \ReflectionClass($this->getName());
        }

        return $this->reflClass;
    }

    /** {@inheritdoc} */
    public function isIdentifier($fieldName)
    {
        return in_array($fieldName, $this->identifier, true);
    }

    /** {@inheritdoc} */
    public function hasField($fieldName)
    {
        return in_array($fieldName, $this->getFieldNames(), true);
    }

    /** {@inheritdoc} */
    public function getFieldNames()
    {
        return array_keys($this->fields);
    }

    /** {@inheritdoc} */
    public function hasAssociation($fieldName)
    {
        return in_array($fieldName, $this->getAssociationNames(), true);
    }

    /** {@inheritdoc} */
    public function getAssociationNames()
    {
        return array_keys($this->associations);
    }

    /** {@inheritdoc} */
    public function isSingleValuedAssociation($fieldName)
    {
        return $this->hasAssociation($fieldName) && $this->associations[$fieldName]['type'] & self::TO_ONE;
    }

    /** {@inheritdoc} */
    public function isCollectionValuedAssociation($fieldName)
    {
        return $this->hasAssociation($fieldName) && $this->associations[$fieldName]['type'] & self::TO_MANY;
    }

    /** {@inheritdoc} */
    public function getIdentifierFieldNames()
    {
        return $this->identifier;
    }

    /** {@inheritdoc} */
    public function getTypeOfField($fieldName)
    {
        return $this->fields[$fieldName]['type'];
    }

    /** {@inheritdoc} */
    public function getAssociationTargetClass($assocName)
    {
        return $this->associations[$assocName]['target'];
    }

    /** {@inheritdoc} */
    public function isAssociationInverseSide($assocName)
    {
        $assoc = $this->associations[$assocName];

        return array_key_exists('mappedBy', $assoc);
    }

    /** {@inheritdoc} */
    public function getAssociationMappedByTargetField($assocName)
    {
        return $this->associations[$assocName]['mappedBy'];
    }

    /** {@inheritdoc} */
    public function getIdentifierValues($object)
    {
        if ($this->isIdentifierComposite) {
            $id = [];
            foreach ($this->identifier as $idField) {
                $value = $this->reflFields[$idField]->getValue($object);
                if ($value !== null) {
                    $id[$idField] = $value;
                }
            }

            return $id;
        }
        $id    = $this->identifier[0];
        $value = $this->reflFields[$id]->getValue($object);
        if (null === $value) {
            return [];
        }

        return [$id => $value];
    }

    /** {@inheritdoc} */
    public function wakeupReflection(ReflectionService $reflService)
    {
        // Restore ReflectionClass and properties
        $this->reflClass    = $reflService->getClass($this->name);
        $this->instantiator = $this->instantiator ?: new Instantiator();

        foreach ($this->fields as $field => $mapping) {

This code seems to be duplicated across your project.

            $class                    = array_key_exists('declared', $mapping) ? $mapping['declared'] : $this->name;
            $this->reflFields[$field] = $reflService->getAccessibleProperty($class, $field);
        }

        foreach ($this->associations as $field => $mapping) {

This code seems to be duplicated across your project.

            $class                    = array_key_exists('declared', $mapping) ? $mapping['declared'] : $this->name;
            $this->reflFields[$field] = $reflService->getAccessibleProperty($class, $field);
        }
    }

    /** {@inheritdoc} */
    public function initializeReflection(ReflectionService $reflService)
    {
        $this->reflClass = $reflService->getClass($this->name);
        $this->namespace = $reflService->getClassNamespace($this->name);
        if ($this->reflClass) {
            $this->name = $this->rootEntityName = $this->reflClass->getName();

Consider using $this->reflClass->name. There is an issue with getName() and APC-enabled PHP versions.

        }
    }

    /** {@inheritdoc} */
    public function getApiFactory()
    {
        if (null === $this->apiFactory) {
            throw MappingException::noApiSpecified($this->getName());
        }

        return $this->apiFactory;
    }

    /** {@inheritdoc} */
    public function getClientName()
    {
        if (null === $this->clientName) {
            throw MappingException::noClientSpecified($this->getName());
        }

        return $this->clientName;
    }

    public function mapField(array $mapping)
    {
        $this->validateAndCompleteFieldMapping($mapping);
        $this->assertFieldNotMapped($mapping['field']);
        $this->fields[$mapping['field']] = $mapping;
    }

    /** {@inheritdoc} */
    public function getFieldMapping($fieldName)
    {
        if (!isset($this->fields[$fieldName])) {
            throw MappingException::unknownField($fieldName, $this->getName());
        }

        return $this->fields[$fieldName];
    }

    /** {@inheritdoc} */
    public function getAssociationMapping($fieldName)
    {
        if (!isset($this->associations[$fieldName])) {
            throw MappingException::unknownAssociation($fieldName, $this->getName());
        }

        return $this->associations[$fieldName];
    }

    public function setCustomRepositoryClass($customRepositoryClassName)
    {
        $this->repositoryClass = $customRepositoryClassName;
    }

    /**
     * @internal
     *
     * @param array $mapping
     *
     * @return void
     */
    public function addInheritedFieldMapping(array $mapping)
    {
        $this->fields[$mapping['field']]         = $mapping;
        $this->apiFieldNames[$mapping['field']]  = $mapping['api_field'];
        $this->fieldNames[$mapping['api_field']] = $mapping['field'];
    }

    /** {@inheritdoc} */
    public function getFieldName($apiFieldName)
    {
        return $this->fieldNames[$apiFieldName];
    }

    /** {@inheritdoc} */
    public function getApiFieldName($fieldName)
    {
        return $this->apiFieldNames[$fieldName];
    }

    public function hasApiField($apiFieldName)
    {
        return array_key_exists($apiFieldName, $this->fieldNames);
    }

    public function mapOneToMany(array $mapping)
    {
        $mapping = $this->validateAndCompleteOneToManyMapping($mapping);

        $this->storeMapping($mapping);
    }

    public function mapManyToOne(array $mapping)
    {
        $mapping = $this->validateAndCompleteOneToOneMapping($mapping);

        $this->storeMapping($mapping);
    }

    public function mapOneToOne(array $mapping)
    {
        $mapping = $this->validateAndCompleteOneToOneMapping($mapping);

        $this->storeMapping($mapping);
    }

    /** {@inheritdoc} */
    public function newInstance()
    {
        return $this->instantiator->instantiate($this->name);
    }

    public function isIdentifierComposite()
    {
        return $this->isIdentifierComposite;
    }

    /** {@inheritdoc} */
    public function getRootEntityName()
    {
        return $this->rootEntityName;
    }

    /**
     * Populates the entity identifier of an entity.
     *
     * @param object $entity
     * @param array  $id
     *
     * @return void
     */
    public function assignIdentifier($entity, array $id)
    {
        foreach ($id as $idField => $idValue) {
            $this->reflFields[$idField]->setValue($entity, $idValue);
        }
    }

    public function addInheritedAssociationMapping(array $mapping)
    {
        $this->associations[$mapping['field']]   = $mapping;
        $this->apiFieldNames[$mapping['field']]  = $mapping['api_field'];
        $this->fieldNames[$mapping['api_field']] = $mapping['field'];
    }

    /** {@inheritdoc} */
    public function getSubclasses()
    {
        return $this->subclasses;
    }

    /** {@inheritdoc} */
    public function getAssociationMappings()
    {
        return $this->associations;
    }

    public function isReadOnly()
    {
        return false;
    }

    /**
     * Sets the change tracking policy used by this class.
     *
     * @param integer $policy
     *
     * @return void
     */
    public function setChangeTrackingPolicy($policy)
    {
        $this->changeTrackingPolicy = $policy;
    }

    /**
     * Whether the change tracking policy of this class is "deferred explicit".
     *
     * @return boolean
     */
    public function isChangeTrackingDeferredExplicit()
    {
        return $this->changeTrackingPolicy === self::CHANGETRACKING_DEFERRED_EXPLICIT;
    }

    /**
     * Whether the change tracking policy of this class is "deferred implicit".
     *
     * @return boolean
     */
    public function isChangeTrackingDeferredImplicit()
    {
        return $this->changeTrackingPolicy === self::CHANGETRACKING_DEFERRED_IMPLICIT;
    }

    /**
     * Whether the change tracking policy of this class is "notify".
     *
     * @return boolean
     */
    public function isChangeTrackingNotify()
    {
        return $this->changeTrackingPolicy === self::CHANGETRACKING_NOTIFY;
    }

    public function mapIdentifier(array $mapping)
    {
        $this->setIdGeneratorType($mapping['generator']['strategy']);

        $this->mapField($mapping);
    }

    /**
     * Sets the type of Id generator to use for the mapped class.
     *
     * @param int $generatorType
     *
     * @return void
     */
    public function setIdGeneratorType($generatorType)
    {
        $this->generatorType = $generatorType;
    }

    public function isIdentifierNatural()
    {
        return $this->generatorType === self::GENERATOR_TYPE_NATURAL;
    }

    public function isIdentifierRemote()
    {
        return $this->generatorType === self::GENERATOR_TYPE_REMOTE;
    }

    /**
     * Populates the entity identifier of an entity.
     *
     * @param object $entity
     * @param array  $id
     *
     * @return void
     *
     * @todo Rename to assignIdentifier()
     */
    public function setIdentifierValues($entity, array $id)
    {
        foreach ($id as $idField => $idValue) {
            $this->reflFields[$idField]->setValue($entity, $idValue);
        }
    }

    public function isRootEntity()
    {
        return $this->getRootEntityName() === $this->getName();
    }

    /**
     * Sets the discriminator column definition.
     *
     * @param array $columnDef
     *
     * @return void
     *
     * @throws MappingException
     *
     * @see getDiscriminatorColumn()
     */
    public function setDiscriminatorField(array $columnDef = null)
    {
        if ($columnDef !== null) {
            if (!isset($columnDef['name'])) {
                throw MappingException::nameIsMandatoryForDiscriminatorColumns($this->name);
            }
            if (isset($this->fieldNames[$columnDef['name']])) {
                throw MappingException::duplicateColumnName($this->name, $columnDef['name']);
            }
            if (!isset($columnDef['fieldName'])) {
                $columnDef['fieldName'] = $columnDef['name'];
            }
            if (!isset($columnDef['type'])) {
                $columnDef['type'] = 'string';
            }
            if (in_array($columnDef['type'], ['boolean', 'array', 'object', 'datetime', 'time', 'date'], true)) {
                throw MappingException::invalidDiscriminatorColumnType($this->name, $columnDef['type']);
            }
            $this->discriminatorField = $columnDef;

It seems like $columnDef of type array<string,?,{"type":"string"}> is incompatible with the declared type array<integer,string> of property $discriminatorField.

        }
    }

    /**
     * Sets the discriminator values used by this class.
     * Used for JOINED and SINGLE_TABLE inheritance mapping strategies.
     *
     * @param array $map
     *
     * @return void
     */
    public function setDiscriminatorMap(array $map)
    {
        foreach ($map as $value => $className) {
            $this->addDiscriminatorMapClass($value, $className);
        }
    }

    /**
     * Adds one entry of the discriminator map with a new class and corresponding name.
     *
     * @param string $name
     * @param string $className
     *
     * @return void
     *
     * @throws MappingException
     */
    public function addDiscriminatorMapClass($name, $className)
    {
        $className                     = $this->fullyQualifiedClassName($className);
        $className                     = ltrim($className, '\\');
        $this->discriminatorMap[$name] = $className;
        if ($this->name === $className) {
            $this->discriminatorValue = $name;

            return;
        }
        if (!(class_exists($className) || interface_exists($className))) {
            throw MappingException::invalidClassInDiscriminatorMap($className, $this->name);
        }
        if (is_subclass_of($className, $this->name) && !in_array($className, $this->subclasses)) {

Due to PHP Bug #53727, is_subclass_of might return inconsistent results on some PHP versions if $this->name can be an interface. If so, you could instead use ReflectionClass::implementsInterface.

            $this->subclasses[] = $className;
        }
    }

    /**
     * @param  string|null $className
     *
     * @return string|null null if the input value is null
     */
    public function fullyQualifiedClassName($className)
    {
        if (empty($className)) {
            return $className;
        }
        if ($className !== null && strpos($className, '\\') === false && $this->namespace) {
            return $this->namespace . '\\' . $className;
        }
        return $className;
    }

    /**
     * Validates & completes the basic mapping information that is common to all
     * association mappings (one-to-one, many-ot-one, one-to-many, many-to-many).
     *
     * @param array $mapping The mapping.
     *
     * @return array The updated mapping.
     *
     * @throws MappingException If something is wrong with the mapping.
     */
    protected function validateAndCompleteAssociationMapping(array $mapping)
    {
        if (!array_key_exists('api_field', $mapping)) {
            $mapping['api_field'] = $mapping['field'];
        }

        if (!isset($mapping['mappedBy'])) {
            $mapping['mappedBy'] = null;
        }

        if (!isset($mapping['inversedBy'])) {
            $mapping['inversedBy'] = null;
        }

        $mapping['isOwningSide'] = true; // assume owning side until we hit mappedBy

        // unset optional indexBy attribute if its empty
        if (!isset($mapping['indexBy']) || !$mapping['indexBy']) {
            unset($mapping['indexBy']);
        }

        // If targetEntity is unqualified, assume it is in the same namespace as
        // the sourceEntity.
        $mapping['source'] = $this->name;
        if (isset($mapping['target'])) {
            $mapping['target'] = ltrim($mapping['target'], '\\');
        }

        if (($mapping['type'] & self::MANY_TO_ONE) > 0 &&
            isset($mapping['orphanRemoval']) &&
            $mapping['orphanRemoval'] == true
        ) {
            throw new MappingException(
                sprintf('Illegal orphanRemoval %s for %s', $mapping['field'], $this->name)
            );
        }

        // Complete id mapping
        if (isset($mapping['id']) && $mapping['id'] === true) {
            if (isset($mapping['orphanRemoval']) && $mapping['orphanRemoval'] == true) {

This code seems to be duplicated across your project.

                throw new MappingException(
                    sprintf('Illegal orphanRemoval on identifier association %s for %s', $mapping['field'], $this->name)
                );
            }

            if (!in_array($mapping['field'], $this->identifier, true)) {
                $this->identifier[]              = $mapping['field'];
                $this->containsForeignIdentifier = true;
            }

            // Check for composite key
            if (!$this->isIdentifierComposite && count($this->identifier) > 1) {
                $this->isIdentifierComposite = true;
            }
        }

        // Mandatory and optional attributes for either side
        if (null !== $mapping['mappedBy']) {
            $mapping['isOwningSide'] = false;
        }

        if (isset($mapping['id']) && $mapping['id'] === true && $mapping['type'] & self::TO_MANY) {

This code seems to be duplicated across your project.

            throw new MappingException(
                sprintf('Illegal toMany identifier association %s for %s', $mapping['field'], $this->name)
            );
        }

        // Fetch mode. Default fetch mode to LAZY, if not set.
        if (!isset($mapping['fetch'])) {
            $mapping['fetch'] = self::FETCH_LAZY;
        }

        // Cascades
        $cascades    = isset($mapping['cascade']) ? array_map('strtolower', $mapping['cascade']) : [];
        $allCascades = ['remove', 'persist', 'refresh', 'merge', 'detach'];
        if (in_array('all', $cascades, true)) {
            $cascades = $allCascades;
        } elseif (count($cascades) !== count(array_intersect($cascades, $allCascades))) {
            throw new MappingException('Invalid cascades: ' . implode(', ', $cascades));
        }
        $mapping['cascade']          = $cascades;
        $mapping['isCascadeRemove']  = in_array('remove', $cascades, true);
        $mapping['isCascadePersist'] = in_array('persist', $cascades, true);
        $mapping['isCascadeRefresh'] = in_array('refresh', $cascades, true);
        $mapping['isCascadeMerge']   = in_array('merge', $cascades, true);
        $mapping['isCascadeDetach']  = in_array('detach', $cascades, true);

        return $mapping;
    }

    private function storeMapping(array $mapping)
    {
        $this->assertFieldNotMapped($mapping['field']);

        $this->apiFieldNames[$mapping['field']]  = $mapping['api_field'];
        $this->fieldNames[$mapping['api_field']] = $mapping['field'];
        $this->associations[$mapping['field']]   = $mapping;
    }

    private function validateAndCompleteFieldMapping(array &$mapping)
    {
        if (!array_key_exists('api_field', $mapping)) {
            $mapping['api_field'] = $mapping['field']; //todo: invent naming strategy
        }

        $this->apiFieldNames[$mapping['field']]  = $mapping['api_field'];
        $this->fieldNames[$mapping['api_field']] = $mapping['field'];

//        if (isset($this->fieldNames[$mapping['columnName']]) || ($this->discriminatorField && $this->discriminatorField['name'] === $mapping['api_field'])) {

67% of this comment could be valid code. Did you maybe forget this after debugging?

//            throw MappingException::duplicateColumnName($this->name, $mapping['columnName']);
//        }

        // Complete id mapping
        if (isset($mapping['id']) && $mapping['id'] === true) {
            if (!in_array($mapping['field'], $this->identifier, true)) {
                $this->identifier[] = $mapping['field'];
            }
            // Check for composite key
            if (!$this->isIdentifierComposite && count($this->identifier) > 1) {
                $this->isIdentifierComposite = true;
            }
        }
    }

    /**
     * @param string $fieldName
     *
     * @throws MappingException
     */
    private function assertFieldNotMapped($fieldName)
    {
        if (array_key_exists($fieldName, $this->fields) ||
            array_key_exists($fieldName, $this->associations) ||
            array_key_exists($fieldName, $this->identifier)
        ) {
            throw new MappingException('Field already mapped');
        }
    }

    /**
     * @param array $mapping
     *
     * @return array
     * @throws MappingException
     * @throws \InvalidArgumentException
     */
    private function validateAndCompleteOneToManyMapping(array $mapping)
    {
        $mapping = $this->validateAndCompleteAssociationMapping($mapping);

        // OneToMany-side MUST be inverse (must have mappedBy)
        if (!isset($mapping['mappedBy'])) {
            throw new MappingException(
                sprintf('Many to many requires mapped by: %s', $mapping['field'])
            );
        }
        $mapping['orphanRemoval']   = isset($mapping['orphanRemoval']) && $mapping['orphanRemoval'];
        $mapping['isCascadeRemove'] = $mapping['orphanRemoval'] || $mapping['isCascadeRemove'];
        $this->assertMappingOrderBy($mapping);

        return $mapping;
    }

    /**
     * @param array $mapping
     *
     * @throws \InvalidArgumentException
     */
    private function assertMappingOrderBy(array $mapping)
    {
        if (array_key_exists('orderBy', $mapping) && !is_array($mapping['orderBy'])) {
            throw new \InvalidArgumentException(
                "'orderBy' is expected to be an array, not " . gettype($mapping['orderBy'])
            );
        }
    }

    /**
     * @param array $mapping
     *
     * @return array
     */
    private function validateAndCompleteOneToOneMapping(array $mapping)
    {
        $mapping = $this->validateAndCompleteAssociationMapping($mapping);

        $mapping['orphanRemoval']   = isset($mapping['orphanRemoval']) && $mapping['orphanRemoval'];
        $mapping['isCascadeRemove'] = $mapping['orphanRemoval'] || $mapping['isCascadeRemove'];
        if ($mapping['orphanRemoval']) {
            unset($mapping['unique']);
        }

        return $mapping;
    }

    /** {@inheritdoc} */
    public function getDiscriminatorField()
    {
        return $this->discriminatorField;

The return type of return $this->discriminatorField; (string[]) is incompatible with the return type declared by the interface Bankiru\Api\Doctrine\Mapping\ApiMetadata::getDiscriminatorField of type string[]|null.

    }

    /** {@inheritdoc} */
    public function getDiscriminatorMap()
    {
        return $this->discriminatorMap;

The return type of return $this->discriminatorMap; (string[]) is incompatible with the return type declared by the interface Bankiru\Api\Doctrine\Mapping\ApiMetadata::getDiscriminatorMap of type string[].

    }

    /** {@inheritdoc} */
    public function getDiscriminatorValue()
    {
        return $this->discriminatorValue;
    }
}