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\Exception\PropertyNotFoundException; |
16
|
|
|
use ApiPlatform\Core\Exception\ResourceClassNotFoundException; |
17
|
|
|
use ApiPlatform\Core\Exception\RuntimeException; |
18
|
|
|
use ApiPlatform\Core\Metadata\Property\Factory\PropertyMetadataFactoryInterface; |
19
|
|
|
use ApiPlatform\Core\Metadata\Resource\Factory\ResourceMetadataFactoryInterface; |
20
|
|
|
use Doctrine\ORM\Mapping\ClassMetadataInfo; |
21
|
|
|
use Doctrine\ORM\QueryBuilder; |
22
|
|
|
|
23
|
|
|
/** |
24
|
|
|
* Eager loads relations. |
25
|
|
|
* |
26
|
|
|
* @author Charles Sarrazin <[email protected]> |
27
|
|
|
* @author Kévin Dunglas <[email protected]> |
28
|
|
|
* @author Antoine Bluchet <[email protected]> |
29
|
|
|
* @author Baptiste Meyer <[email protected]> |
30
|
|
|
*/ |
31
|
|
|
final class EagerLoadingExtension implements QueryCollectionExtensionInterface, QueryItemExtensionInterface |
32
|
|
|
{ |
33
|
|
|
private $propertyMetadataFactory; |
34
|
|
|
private $resourceMetadataFactory; |
35
|
|
|
private $maxJoins; |
36
|
|
|
private $forceEager; |
37
|
|
|
|
38
|
|
|
public function __construct(PropertyMetadataFactoryInterface $propertyMetadataFactory, ResourceMetadataFactoryInterface $resourceMetadataFactory, int $maxJoins = 30, bool $forceEager = true) |
39
|
|
|
{ |
40
|
|
|
$this->propertyMetadataFactory = $propertyMetadataFactory; |
41
|
|
|
$this->resourceMetadataFactory = $resourceMetadataFactory; |
42
|
|
|
$this->maxJoins = $maxJoins; |
43
|
|
|
$this->forceEager = $forceEager; |
44
|
|
|
} |
45
|
|
|
|
46
|
|
|
/** |
47
|
|
|
* {@inheritdoc} |
48
|
|
|
*/ |
49
|
|
|
public function applyToCollection(QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $resourceClass, string $operationName = null) |
50
|
|
|
{ |
51
|
|
|
$options = []; |
52
|
|
|
|
53
|
|
|
if (null !== $operationName) { |
54
|
|
|
$options = ['collection_operation_name' => $operationName]; |
55
|
|
|
} |
56
|
|
|
|
57
|
|
|
$forceEager = $this->isForceEager($resourceClass, $options); |
58
|
|
|
|
59
|
|
|
try { |
60
|
|
|
$groups = $this->getSerializerGroups($resourceClass, $options, 'normalization_context'); |
61
|
|
|
|
62
|
|
|
$this->joinRelations($queryBuilder, $queryNameGenerator, $resourceClass, $forceEager, $queryBuilder->getRootAliases()[0], $groups); |
63
|
|
|
} catch (ResourceClassNotFoundException $resourceClassNotFoundException) { |
64
|
|
|
//ignore the not found exception |
65
|
|
|
} |
66
|
|
|
} |
67
|
|
|
|
68
|
|
|
/** |
69
|
|
|
* {@inheritdoc} |
70
|
|
|
* The context may contain serialization groups which helps defining joined entities that are readable. |
71
|
|
|
*/ |
72
|
|
|
public function applyToItem(QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $resourceClass, array $identifiers, string $operationName = null, array $context = []) |
73
|
|
|
{ |
74
|
|
|
$options = []; |
75
|
|
|
|
76
|
|
|
if (null !== $operationName) { |
77
|
|
|
$options = ['item_operation_name' => $operationName]; |
78
|
|
|
} |
79
|
|
|
|
80
|
|
|
$forceEager = $this->isForceEager($resourceClass, $options); |
81
|
|
|
|
82
|
|
|
if (isset($context['groups'])) { |
83
|
|
|
$groups = ['serializer_groups' => $context['groups']]; |
84
|
|
|
} elseif (isset($context['resource_class'])) { |
85
|
|
|
$groups = $this->getSerializerGroups($context['resource_class'], $options, isset($context['api_denormalize']) ? 'denormalization_context' : 'normalization_context'); |
86
|
|
|
} else { |
87
|
|
|
$groups = $this->getSerializerGroups($resourceClass, $options, 'normalization_context'); |
88
|
|
|
} |
89
|
|
|
|
90
|
|
|
$this->joinRelations($queryBuilder, $queryNameGenerator, $resourceClass, $forceEager, $queryBuilder->getRootAliases()[0], $groups); |
91
|
|
|
} |
92
|
|
|
|
93
|
|
|
/** |
94
|
|
|
* Joins relations to eager load. |
95
|
|
|
* |
96
|
|
|
* @param QueryBuilder $queryBuilder |
97
|
|
|
* @param QueryNameGeneratorInterface $queryNameGenerator |
98
|
|
|
* @param string $resourceClass |
99
|
|
|
* @param bool $forceEager |
100
|
|
|
* @param string $parentAlias |
101
|
|
|
* @param array $propertyMetadataOptions |
102
|
|
|
* @param bool $wasLeftJoin if the relation containing the new one had a left join, we have to force the new one to left join too |
103
|
|
|
* @param int $joinCount the number of joins |
104
|
|
|
* |
105
|
|
|
* @throws RuntimeException when the max number of joins has been reached |
106
|
|
|
*/ |
107
|
|
|
private function joinRelations(QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $resourceClass, bool $forceEager, string $parentAlias, array $propertyMetadataOptions = [], bool $wasLeftJoin = false, int &$joinCount = 0) |
108
|
|
|
{ |
109
|
|
|
if ($joinCount > $this->maxJoins) { |
110
|
|
|
throw new RuntimeException('The total number of joined relations has exceeded the specified maximum. Raise the limit if necessary.'); |
111
|
|
|
} |
112
|
|
|
|
113
|
|
|
$entityManager = $queryBuilder->getEntityManager(); |
114
|
|
|
$classMetadata = $entityManager->getClassMetadata($resourceClass); |
115
|
|
|
|
116
|
|
|
foreach ($classMetadata->associationMappings as $association => $mapping) { |
117
|
|
|
try { |
118
|
|
|
$propertyMetadata = $this->propertyMetadataFactory->create($resourceClass, $association, $propertyMetadataOptions); |
119
|
|
|
} catch (PropertyNotFoundException $propertyNotFoundException) { |
120
|
|
|
//skip properties not found |
121
|
|
|
continue; |
122
|
|
|
} catch (ResourceClassNotFoundException $resourceClassNotFoundException) { |
123
|
|
|
//skip associations that are not resource classes |
124
|
|
|
continue; |
125
|
|
|
} |
126
|
|
|
|
127
|
|
|
if (false === $forceEager && ClassMetadataInfo::FETCH_EAGER !== $mapping['fetch']) { |
128
|
|
|
continue; |
129
|
|
|
} |
130
|
|
|
|
131
|
|
|
if (false === $propertyMetadata->isReadableLink() || false === $propertyMetadata->isReadable()) { |
132
|
|
|
continue; |
133
|
|
|
} |
134
|
|
|
|
135
|
|
|
$joinColumns = $mapping['joinColumns'] ?? $mapping['joinTable']['joinColumns'] ?? null; |
136
|
|
|
if (false !== $wasLeftJoin || !isset($joinColumns[0]['nullable']) || false !== $joinColumns[0]['nullable']) { |
137
|
|
|
$method = 'leftJoin'; |
138
|
|
|
} else { |
139
|
|
|
$method = 'innerJoin'; |
140
|
|
|
} |
141
|
|
|
|
142
|
|
|
$associationAlias = $queryNameGenerator->generateJoinAlias($association); |
143
|
|
|
$queryBuilder->{$method}(sprintf('%s.%s', $parentAlias, $association), $associationAlias); |
144
|
|
|
++$joinCount; |
145
|
|
|
|
146
|
|
|
$this->joinRelations($queryBuilder, $queryNameGenerator, $mapping['targetEntity'], $forceEager, $associationAlias, $propertyMetadataOptions, $method === 'leftJoin', $joinCount); |
147
|
|
|
} |
148
|
|
|
} |
149
|
|
|
|
150
|
|
|
/** |
151
|
|
|
* Gets serializer groups if available, if not it returns the $options array. |
152
|
|
|
* |
153
|
|
|
* @param string $resourceClass |
154
|
|
|
* @param array $options represents the operation name so that groups are the one of the specific operation |
155
|
|
|
* @param string $context normalization_context or denormalization_context |
156
|
|
|
* |
157
|
|
|
* @return array |
158
|
|
|
*/ |
159
|
|
|
private function getSerializerGroups(string $resourceClass, array $options, string $context): array |
160
|
|
|
{ |
161
|
|
|
$resourceMetadata = $this->resourceMetadataFactory->create($resourceClass); |
162
|
|
|
|
163
|
|
|
if (isset($options['collection_operation_name'])) { |
164
|
|
|
$context = $resourceMetadata->getCollectionOperationAttribute($options['collection_operation_name'], $context, null, true); |
165
|
|
|
} elseif (isset($options['item_operation_name'])) { |
166
|
|
|
$context = $resourceMetadata->getItemOperationAttribute($options['item_operation_name'], $context, null, true); |
167
|
|
|
} else { |
168
|
|
|
$context = $resourceMetadata->getAttribute($context); |
169
|
|
|
} |
170
|
|
|
|
171
|
|
|
if (empty($context['groups'])) { |
172
|
|
|
return $options; |
173
|
|
|
} |
174
|
|
|
|
175
|
|
|
return ['serializer_groups' => $context['groups']]; |
176
|
|
|
} |
177
|
|
|
|
178
|
|
|
/** |
179
|
|
|
* Does an operation force eager? |
180
|
|
|
* |
181
|
|
|
* @param string $resourceClass |
182
|
|
|
* @param array $options |
183
|
|
|
* |
184
|
|
|
* @return bool |
185
|
|
|
*/ |
186
|
|
|
private function isForceEager(string $resourceClass, array $options): bool |
187
|
|
|
{ |
188
|
|
|
$resourceMetadata = $this->resourceMetadataFactory->create($resourceClass); |
189
|
|
|
|
190
|
|
|
if (isset($options['collection_operation_name'])) { |
191
|
|
|
$forceEager = $resourceMetadata->getCollectionOperationAttribute($options['collection_operation_name'], 'force_eager', null, true); |
192
|
|
|
} elseif (isset($options['item_operation_name'])) { |
193
|
|
|
$forceEager = $resourceMetadata->getItemOperationAttribute($options['item_operation_name'], 'force_eager', null, true); |
194
|
|
|
} else { |
195
|
|
|
$forceEager = $resourceMetadata->getAttribute('force_eager'); |
196
|
|
|
} |
197
|
|
|
|
198
|
|
|
return is_bool($forceEager) ? $forceEager : $this->forceEager; |
199
|
|
|
} |
200
|
|
|
} |
201
|
|
|
|