|
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
|
|
|
namespace ApiPlatform\Core\Bridge\Doctrine\Orm\Extension; |
|
13
|
|
|
|
|
14
|
|
|
use ApiPlatform\Core\Bridge\Doctrine\Orm\Util\QueryNameGeneratorInterface; |
|
15
|
|
|
use ApiPlatform\Core\Metadata\Property\Factory\PropertyMetadataFactoryInterface; |
|
16
|
|
|
use ApiPlatform\Core\Metadata\Property\Factory\PropertyNameCollectionFactoryInterface; |
|
17
|
|
|
use Symfony\Component\PropertyInfo\Type; |
|
18
|
|
|
use Doctrine\ORM\Mapping\ClassMetadataInfo; |
|
19
|
|
|
use Doctrine\ORM\QueryBuilder; |
|
20
|
|
|
|
|
21
|
|
|
/** |
|
22
|
|
|
* Eager loads relations. |
|
23
|
|
|
* |
|
24
|
|
|
* @author Charles Sarrazin <[email protected]> |
|
25
|
|
|
* @author Kévin Dunglas <[email protected]> |
|
26
|
|
|
*/ |
|
27
|
|
|
final class EagerLoadingExtension implements QueryCollectionExtensionInterface, QueryItemExtensionInterface |
|
28
|
|
|
{ |
|
29
|
|
|
private $propertyNameCollectionFactory; |
|
30
|
|
|
private $propertyMetadataFactory; |
|
31
|
|
|
|
|
32
|
|
|
public function __construct(PropertyNameCollectionFactoryInterface $propertyNameCollectionFactory, PropertyMetadataFactoryInterface $propertyMetadataFactory) |
|
33
|
|
|
{ |
|
34
|
|
|
$this->propertyMetadataFactory = $propertyMetadataFactory; |
|
35
|
|
|
$this->propertyNameCollectionFactory = $propertyNameCollectionFactory; |
|
36
|
|
|
} |
|
37
|
|
|
|
|
38
|
|
|
/** |
|
39
|
|
|
* {@inheritdoc} |
|
40
|
|
|
*/ |
|
41
|
|
|
public function applyToCollection(QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $resourceClass, string $operationName = null) |
|
42
|
|
|
{ |
|
43
|
|
|
$this->joinRelations($queryBuilder, $resourceClass); |
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
|
|
/** |
|
47
|
|
|
* {@inheritdoc} |
|
48
|
|
|
*/ |
|
49
|
|
|
public function applyToItem(QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $resourceClass, array $identifiers, string $operationName = null) |
|
50
|
|
|
{ |
|
51
|
|
|
$this->joinRelations($queryBuilder, $resourceClass); |
|
52
|
|
|
} |
|
53
|
|
|
|
|
54
|
|
|
public function getMetadataProperties($resourceClass): array |
|
55
|
|
|
{ |
|
56
|
|
|
$properties = []; |
|
57
|
|
|
|
|
58
|
|
|
foreach ($this->propertyNameCollectionFactory->create($resourceClass) as $property) { |
|
59
|
|
|
$properties[$property] = $this->propertyMetadataFactory->create($resourceClass, $property); |
|
60
|
|
|
} |
|
61
|
|
|
|
|
62
|
|
|
return $properties; |
|
63
|
|
|
} |
|
64
|
|
|
|
|
65
|
|
|
/** |
|
66
|
|
|
* Left joins relations to eager load. |
|
67
|
|
|
* |
|
68
|
|
|
* @param QueryBuilder $queryBuilder |
|
69
|
|
|
* @param string $resourceClass |
|
70
|
|
|
*/ |
|
71
|
|
|
private function joinRelations(QueryBuilder $queryBuilder, string $resourceClass, string $originAlias = 'o', string &$relationAlias = 'a') |
|
72
|
|
|
{ |
|
73
|
|
|
$classMetadata = $queryBuilder->getEntityManager()->getClassMetadata($resourceClass); |
|
74
|
|
|
$j = 0; |
|
75
|
|
|
|
|
76
|
|
|
foreach ($classMetadata->getAssociationNames() as $i => $association) { |
|
77
|
|
|
$mapping = $classMetadata->associationMappings[$association]; |
|
78
|
|
|
$propertyMetadata = $this->propertyMetadataFactory->create($resourceClass, $association); |
|
79
|
|
|
|
|
80
|
|
|
if (ClassMetadataInfo::FETCH_EAGER !== $mapping['fetch'] || false === $propertyMetadata->isReadableLink()) { |
|
81
|
|
|
continue; |
|
82
|
|
|
} |
|
83
|
|
|
|
|
84
|
|
|
$method = false === $mapping['joinColumns'][0]['nullable'] ? 'innerJoin' : 'leftJoin'; |
|
85
|
|
|
|
|
86
|
|
|
$associationAlias = $relationAlias.$i; |
|
87
|
|
|
$queryBuilder->{$method}($originAlias.'.'.$association, $associationAlias); |
|
88
|
|
|
$select = []; |
|
89
|
|
|
$targetClassMetadata = $queryBuilder->getEntityManager()->getClassMetadata($mapping['targetEntity']); |
|
90
|
|
|
|
|
91
|
|
|
//@TODO useless at the moment, but Doctrine queries non-necessary relations because addSelect($associationAlias) lazy fetch every association |
|
92
|
|
|
//By using this array of properties, it Lazy fetch association, which are initially in an INNER JOIN (fetches them twice ?!) |
|
93
|
|
|
//If I try to use associationAlias when it has every property, but the properties array when it doesn't it fails because it can not fetch parent association |
|
94
|
|
|
foreach ($this->getMetadataProperties($mapping['targetEntity']) as $property => $propertyMetadata) { |
|
95
|
|
|
if (true === $targetClassMetadata->hasField($property) && true === $propertyMetadata->isReadableLink()) { |
|
96
|
|
|
$select[] = $associationAlias.'.'.$property; |
|
97
|
|
|
} |
|
98
|
|
|
} |
|
99
|
|
|
|
|
100
|
|
|
$queryBuilder->addSelect($associationAlias); |
|
101
|
|
|
|
|
102
|
|
|
$relationAlias = $relationAlias.++$j; |
|
103
|
|
|
$this->joinRelations($queryBuilder, $mapping['targetEntity'], $associationAlias, $relationAlias); |
|
104
|
|
|
} |
|
105
|
|
|
} |
|
106
|
|
|
} |
|
107
|
|
|
|
api-platform /
core
