ItemDataProvider::getItem() - Code Metrics - Inspection of "Improve ":id" param normalization" - api-platform/core - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#1478)

by Antoine

created 2017-11-23 17:10 UTC

ItemDataProvider::getItem() D

↳ Parent: ItemDataProvider

Complexity

Conditions	9
Paths	20

Size

Total Lines	39
Code Lines	22

Duplication

Lines	7
Ratio	17.95 %

Importance

Changes

Metric	Value
dl	7
loc	39
rs	4.909
c	0
b	0
f	0
cc	9
eloc	22
nc	20
nop	4

<?php

/*
 * This file is part of the API Platform project.
 *
 * (c) Kévin Dunglas <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

declare(strict_types=1);

namespace ApiPlatform\Core\Bridge\Doctrine\Orm;

use ApiPlatform\Core\Bridge\Doctrine\Orm\Extension\QueryItemExtensionInterface;
use ApiPlatform\Core\Bridge\Doctrine\Orm\Extension\QueryResultItemExtensionInterface;
use ApiPlatform\Core\Bridge\Doctrine\Orm\Util\IdentifierManagerTrait;
use ApiPlatform\Core\Bridge\Doctrine\Orm\Util\QueryNameGenerator;
use ApiPlatform\Core\DataProvider\ItemDataProviderInterface;
use ApiPlatform\Core\DataProvider\RestrictedDataProviderInterface;
use ApiPlatform\Core\Exception\RuntimeException;
use ApiPlatform\Core\Metadata\Property\Factory\PropertyMetadataFactoryInterface;
use ApiPlatform\Core\Metadata\Property\Factory\PropertyNameCollectionFactoryInterface;
use Doctrine\Common\Persistence\ManagerRegistry;
use Doctrine\Common\Persistence\Mapping\ClassMetadata;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\QueryBuilder;

/**
 * Item data provider for the Doctrine ORM.
 *
 * @author Kévin Dunglas <[email protected]>
 * @author Samuel ROZE <[email protected]>
 */
class ItemDataProvider implements ItemDataProviderInterface, RestrictedDataProviderInterface
{
    use IdentifierManagerTrait;

    private $managerRegistry;
    private $itemExtensions;

    /**
     * @param ManagerRegistry                        $managerRegistry
     * @param PropertyNameCollectionFactoryInterface $propertyNameCollectionFactory
     * @param PropertyMetadataFactoryInterface       $propertyMetadataFactory
     * @param QueryItemExtensionInterface[]          $itemExtensions
     */
    public function __construct(ManagerRegistry $managerRegistry, PropertyNameCollectionFactoryInterface $propertyNameCollectionFactory, PropertyMetadataFactoryInterface $propertyMetadataFactory, array $itemExtensions = [])
    {
        $this->managerRegistry = $managerRegistry;
        $this->propertyNameCollectionFactory = $propertyNameCollectionFactory;
        $this->propertyMetadataFactory = $propertyMetadataFactory;
        $this->itemExtensions = $itemExtensions;
    }

    public function supports(string $resourceClass, string $operationName = null): bool
    {
        return null !== $this->managerRegistry->getManagerForClass($resourceClass);
    }

    /**
     * {@inheritdoc}
     *
     * The context may contain a `fetch_data` key representing whether the value should be fetched by Doctrine or if we should return a reference.
     *
     * @throws RuntimeException
     */
    public function getItem(string $resourceClass, $id, string $operationName = null, array $context = []/* , array $identifiers **/)

    {
        $manager = $this->managerRegistry->getManagerForClass($resourceClass);

        $identifiers = null;
        if (5 === func_num_args()) {
            $identifiers = func_get_arg(4);
        }

        if (!$identifiers) {
            $identifiers = $this->normalizeIdentifiers($id, $manager, $resourceClass);
/** @return stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
        }

        $fetchData = $context['fetch_data'] ?? true;
        if (!$fetchData && $manager instanceof EntityManagerInterface) {
            return $manager->getReference($resourceClass, $identifiers);
        }

        $repository = $manager->getRepository($resourceClass);
        if (!method_exists($repository, 'createQueryBuilder')) {
            throw new RuntimeException('The repository class must have a "createQueryBuilder" method.');
        }

        $queryBuilder = $repository->createQueryBuilder('o');
        $queryNameGenerator = new QueryNameGenerator();
        $doctrineClassMetadata = $manager->getClassMetadata($resourceClass);

        $this->addWhereForIdentifiers($identifiers, $queryBuilder, $doctrineClassMetadata);

        foreach ($this->itemExtensions as $extension) {

            $extension->applyToItem($queryBuilder, $queryNameGenerator, $resourceClass, $identifiers, $operationName, $context);

            if ($extension instanceof QueryResultItemExtensionInterface && $extension->supportsResult($resourceClass, $operationName)) {
                return $extension->getResult($queryBuilder);
            }
        }

        return $queryBuilder->getQuery()->getOneOrNullResult();
    }

    /**
     * Add WHERE conditions to the query for one or more identifiers (simple or composite).
     *
     * @param array         $identifiers
     * @param QueryBuilder  $queryBuilder
     * @param ClassMetadata $classMetadata
     */
    private function addWhereForIdentifiers(array $identifiers, QueryBuilder $queryBuilder, ClassMetadata $classMetadata)
    {
        foreach ($identifiers as $identifier => $value) {
            $placeholder = ':id_'.$identifier;
            $expression = $queryBuilder->expr()->eq(
                'o.'.$identifier,
                $placeholder
            );

            $queryBuilder->andWhere($expression);

            $queryBuilder->setParameter($placeholder, $value, $classMetadata->getTypeOfField($identifier));
        }
    }
}


1		<?php
2
3		/*
4		* This file is part of the API Platform project.
5		*
6		* (c) Kévin Dunglas <[email protected]>
7		*
8		* For the full copyright and license information, please view the LICENSE
9		* file that was distributed with this source code.
10		*/
11
12		declare(strict_types=1);
13
14		namespace ApiPlatform\Core\Bridge\Doctrine\Orm;
15
16		use ApiPlatform\Core\Bridge\Doctrine\Orm\Extension\QueryItemExtensionInterface;
17		use ApiPlatform\Core\Bridge\Doctrine\Orm\Extension\QueryResultItemExtensionInterface;
18		use ApiPlatform\Core\Bridge\Doctrine\Orm\Util\IdentifierManagerTrait;
19		use ApiPlatform\Core\Bridge\Doctrine\Orm\Util\QueryNameGenerator;
20		use ApiPlatform\Core\DataProvider\ItemDataProviderInterface;
21		use ApiPlatform\Core\DataProvider\RestrictedDataProviderInterface;
22		use ApiPlatform\Core\Exception\RuntimeException;
23		use ApiPlatform\Core\Metadata\Property\Factory\PropertyMetadataFactoryInterface;
24		use ApiPlatform\Core\Metadata\Property\Factory\PropertyNameCollectionFactoryInterface;
25		use Doctrine\Common\Persistence\ManagerRegistry;
26		use Doctrine\Common\Persistence\Mapping\ClassMetadata;
27		use Doctrine\ORM\EntityManagerInterface;
28		use Doctrine\ORM\QueryBuilder;
29
30		/**
31		* Item data provider for the Doctrine ORM.
32		*
33		* @author Kévin Dunglas <[email protected]>
34		* @author Samuel ROZE <[email protected]>
35		*/
36		class ItemDataProvider implements ItemDataProviderInterface, RestrictedDataProviderInterface
37		{
38		use IdentifierManagerTrait;
39
40		private $managerRegistry;
41		private $itemExtensions;
42
43		/**
44		* @param ManagerRegistry $managerRegistry
45		* @param PropertyNameCollectionFactoryInterface $propertyNameCollectionFactory
46		* @param PropertyMetadataFactoryInterface $propertyMetadataFactory
47		* @param QueryItemExtensionInterface[] $itemExtensions
48		*/
49		public function __construct(ManagerRegistry $managerRegistry, PropertyNameCollectionFactoryInterface $propertyNameCollectionFactory, PropertyMetadataFactoryInterface $propertyMetadataFactory, array $itemExtensions = [])
50		{
51		$this->managerRegistry = $managerRegistry;
52		$this->propertyNameCollectionFactory = $propertyNameCollectionFactory;
53		$this->propertyMetadataFactory = $propertyMetadataFactory;
54		$this->itemExtensions = $itemExtensions;
55		}
56
57		public function supports(string $resourceClass, string $operationName = null): bool
58		{
59		return null !== $this->managerRegistry->getManagerForClass($resourceClass);
60		}
61
62		/**
63		* {@inheritdoc}
64		*
65		* The context may contain a `fetch_data` key representing whether the value should be fetched by Doctrine or if we should return a reference.
66		*
67		* @throws RuntimeException
68		*/
69		public function getItem(string $resourceClass, $id, string $operationName = null, array $context = []/* , array $identifiers **/)
		0 ignored issues – show Unused Code Comprehensibility introduced 2017-11-04 12:21 UTC by Report Bug Copy Issue Report `38%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
70		{
71		$manager = $this->managerRegistry->getManagerForClass($resourceClass);
72
73		$identifiers = null;
74		if (5 === func_num_args()) {
75		$identifiers = func_get_arg(4);
76		}
77
78		if (!$identifiers) {
79		$identifiers = $this->normalizeIdentifiers($id, $manager, $resourceClass);
		0 ignored issues – show Bug introduced 2017-10-13 06:41 UTC by Report Bug Copy Issue Report It seems like `$manager` defined by `$this->managerRegistry->...orClass($resourceClass)` on line `71` can be `null`; however, `ApiPlatform\Core\Bridge\...:normalizeIdentifiers()` does not accept `null`, maybe add an additional type check? Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: /** @return stdClass\|null */ function mayReturnNull() { } function doesNotAcceptNull(stdClass $x) { } // With potential error. function withoutCheck() { $x = mayReturnNull(); doesNotAcceptNull($x); // Potential error here. } // Safe - Alternative 1 function withCheck1() { $x = mayReturnNull(); if ( ! $x instanceof stdClass) { throw new \LogicException('$x must be defined.'); } doesNotAcceptNull($x); } // Safe - Alternative 2 function withCheck2() { $x = mayReturnNull(); if ($x instanceof stdClass) { doesNotAcceptNull($x); } } Loading history...
80		}
81
82		$fetchData = $context['fetch_data'] ?? true;
83		if (!$fetchData && $manager instanceof EntityManagerInterface) {
84		return $manager->getReference($resourceClass, $identifiers);
85		}
86
87		$repository = $manager->getRepository($resourceClass);
88		if (!method_exists($repository, 'createQueryBuilder')) {
89		throw new RuntimeException('The repository class must have a "createQueryBuilder" method.');
90		}
91
92		$queryBuilder = $repository->createQueryBuilder('o');
93		$queryNameGenerator = new QueryNameGenerator();
94		$doctrineClassMetadata = $manager->getClassMetadata($resourceClass);
95
96		$this->addWhereForIdentifiers($identifiers, $queryBuilder, $doctrineClassMetadata);
97
98	View Code Duplication	foreach ($this->itemExtensions as $extension) {
		0 ignored issues – show Duplication introduced 2016-09-07 10:20 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
99		$extension->applyToItem($queryBuilder, $queryNameGenerator, $resourceClass, $identifiers, $operationName, $context);
100
101		if ($extension instanceof QueryResultItemExtensionInterface && $extension->supportsResult($resourceClass, $operationName)) {
102		return $extension->getResult($queryBuilder);
103		}
104		}
105
106		return $queryBuilder->getQuery()->getOneOrNullResult();
107		}
108
109		/**
110		* Add WHERE conditions to the query for one or more identifiers (simple or composite).
111		*
112		* @param array $identifiers
113		* @param QueryBuilder $queryBuilder
114		* @param ClassMetadata $classMetadata
115		*/
116		private function addWhereForIdentifiers(array $identifiers, QueryBuilder $queryBuilder, ClassMetadata $classMetadata)
117		{
118		foreach ($identifiers as $identifier => $value) {
119		$placeholder = ':id_'.$identifier;
120		$expression = $queryBuilder->expr()->eq(
121		'o.'.$identifier,
122		$placeholder
123		);
124
125		$queryBuilder->andWhere($expression);
126
127		$queryBuilder->setParameter($placeholder, $value, $classMetadata->getTypeOfField($identifier));
128		}
129		}
130		}
131

api-platform / core

Pull Request — master (#1478)

ItemDataProvider::getItem() D

Complexity

Size

Duplication

Importance

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