Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like DocumentPersister often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use DocumentPersister, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 48 | class DocumentPersister |
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| 49 | { |
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| 50 | /** |
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| 51 | * The PersistenceBuilder instance. |
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| 52 | * |
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| 53 | * @var PersistenceBuilder |
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| 54 | */ |
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| 55 | private $pb; |
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| 56 | |||
| 57 | /** |
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| 58 | * The DocumentManager instance. |
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| 59 | * |
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| 60 | * @var DocumentManager |
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| 61 | */ |
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| 62 | private $dm; |
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| 63 | |||
| 64 | /** |
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| 65 | * The EventManager instance |
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| 66 | * |
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| 67 | * @var EventManager |
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| 68 | */ |
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| 69 | private $evm; |
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| 70 | |||
| 71 | /** |
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| 72 | * The UnitOfWork instance. |
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| 73 | * |
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| 74 | * @var UnitOfWork |
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| 75 | */ |
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| 76 | private $uow; |
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| 77 | |||
| 78 | /** |
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| 79 | * The ClassMetadata instance for the document type being persisted. |
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| 80 | * |
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| 81 | * @var ClassMetadata |
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| 82 | */ |
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| 83 | private $class; |
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| 84 | |||
| 85 | /** |
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| 86 | * The MongoCollection instance for this document. |
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| 87 | * |
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| 88 | * @var \MongoCollection |
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| 89 | */ |
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| 90 | private $collection; |
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| 91 | |||
| 92 | /** |
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| 93 | * Array of queued inserts for the persister to insert. |
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| 94 | * |
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| 95 | * @var array |
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| 96 | */ |
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| 97 | private $queuedInserts = array(); |
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| 98 | |||
| 99 | /** |
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| 100 | * Array of queued inserts for the persister to insert. |
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| 101 | * |
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| 102 | * @var array |
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| 103 | */ |
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| 104 | private $queuedUpserts = array(); |
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| 105 | |||
| 106 | /** |
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| 107 | * The CriteriaMerger instance. |
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| 108 | * |
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| 109 | * @var CriteriaMerger |
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| 110 | */ |
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| 111 | private $cm; |
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| 112 | |||
| 113 | /** |
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| 114 | * The CollectionPersister instance. |
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| 115 | * |
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| 116 | * @var CollectionPersister |
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| 117 | */ |
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| 118 | private $cp; |
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| 119 | |||
| 120 | /** |
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| 121 | * Initializes this instance. |
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| 122 | * |
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| 123 | * @param PersistenceBuilder $pb |
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| 124 | * @param DocumentManager $dm |
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| 125 | * @param EventManager $evm |
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| 126 | * @param UnitOfWork $uow |
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| 127 | * @param HydratorFactory $hydratorFactory |
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| 128 | * @param ClassMetadata $class |
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| 129 | * @param CriteriaMerger $cm |
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| 130 | */ |
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| 131 | 782 | public function __construct( |
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| 132 | PersistenceBuilder $pb, |
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| 133 | DocumentManager $dm, |
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| 134 | EventManager $evm, |
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| 135 | UnitOfWork $uow, |
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| 136 | HydratorFactory $hydratorFactory, |
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| 137 | ClassMetadata $class, |
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| 138 | CriteriaMerger $cm = null |
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| 139 | ) { |
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| 140 | 782 | $this->pb = $pb; |
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| 141 | 782 | $this->dm = $dm; |
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| 142 | 782 | $this->evm = $evm; |
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| 143 | 782 | $this->cm = $cm ?: new CriteriaMerger(); |
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| 144 | 782 | $this->uow = $uow; |
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| 145 | 782 | $this->hydratorFactory = $hydratorFactory; |
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| 146 | 782 | $this->class = $class; |
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| 147 | 782 | $this->collection = $dm->getDocumentCollection($class->name); |
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| 148 | 782 | $this->cp = $this->uow->getCollectionPersister(); |
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| 149 | 782 | } |
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| 150 | |||
| 151 | /** |
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| 152 | * @return array |
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| 153 | */ |
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| 154 | public function getInserts() |
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| 155 | { |
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| 156 | return $this->queuedInserts; |
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| 157 | } |
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| 158 | |||
| 159 | /** |
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| 160 | * @param object $document |
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| 161 | * @return bool |
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| 162 | */ |
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| 163 | public function isQueuedForInsert($document) |
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| 164 | { |
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| 165 | return isset($this->queuedInserts[spl_object_hash($document)]); |
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| 166 | } |
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| 167 | |||
| 168 | /** |
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| 169 | * Adds a document to the queued insertions. |
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| 170 | * The document remains queued until {@link executeInserts} is invoked. |
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| 171 | * |
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| 172 | * @param object $document The document to queue for insertion. |
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| 173 | */ |
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| 174 | 545 | public function addInsert($document) |
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| 175 | { |
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| 176 | 545 | $this->queuedInserts[spl_object_hash($document)] = $document; |
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| 177 | 545 | } |
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| 178 | |||
| 179 | /** |
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| 180 | * @return array |
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| 181 | */ |
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| 182 | public function getUpserts() |
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| 183 | { |
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| 184 | return $this->queuedUpserts; |
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| 185 | } |
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| 186 | |||
| 187 | /** |
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| 188 | * @param object $document |
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| 189 | * @return boolean |
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| 190 | */ |
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| 191 | public function isQueuedForUpsert($document) |
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| 192 | { |
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| 193 | return isset($this->queuedUpserts[spl_object_hash($document)]); |
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| 194 | } |
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| 195 | |||
| 196 | /** |
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| 197 | * Adds a document to the queued upserts. |
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| 198 | * The document remains queued until {@link executeUpserts} is invoked. |
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| 199 | * |
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| 200 | * @param object $document The document to queue for insertion. |
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| 201 | */ |
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| 202 | 87 | public function addUpsert($document) |
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| 203 | { |
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| 204 | 87 | $this->queuedUpserts[spl_object_hash($document)] = $document; |
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| 205 | 87 | } |
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| 206 | |||
| 207 | /** |
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| 208 | * Gets the ClassMetadata instance of the document class this persister is used for. |
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| 209 | * |
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| 210 | * @return ClassMetadata |
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| 211 | */ |
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| 212 | public function getClassMetadata() |
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| 213 | { |
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| 214 | return $this->class; |
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| 215 | } |
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| 216 | |||
| 217 | /** |
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| 218 | * Executes all queued document insertions. |
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| 219 | * |
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| 220 | * Queued documents without an ID will inserted in a batch and queued |
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| 221 | * documents with an ID will be upserted individually. |
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| 222 | * |
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| 223 | * If no inserts are queued, invoking this method is a NOOP. |
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| 224 | * |
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| 225 | * @param array $options Options for batchInsert() and update() driver methods |
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| 226 | */ |
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| 227 | 545 | public function executeInserts(array $options = array()) |
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| 228 | { |
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| 229 | 545 | if ( ! $this->queuedInserts) { |
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| 230 | return; |
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| 231 | } |
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| 232 | |||
| 233 | 545 | $inserts = array(); |
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| 234 | 545 | $options = $this->getWriteOptions($options); |
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| 235 | 545 | foreach ($this->queuedInserts as $oid => $document) { |
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| 236 | 545 | $data = $this->pb->prepareInsertData($document); |
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| 237 | |||
| 238 | // Set the initial version for each insert |
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| 239 | 544 | View Code Duplication | if ($this->class->isVersioned) { |
| 240 | 38 | $versionMapping = $this->class->fieldMappings[$this->class->versionField]; |
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| 241 | 38 | if ($versionMapping['type'] === 'int') { |
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| 242 | 36 | $nextVersion = max(1, (int) $this->class->reflFields[$this->class->versionField]->getValue($document)); |
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| 243 | 36 | $this->class->reflFields[$this->class->versionField]->setValue($document, $nextVersion); |
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| 244 | 2 | } elseif ($versionMapping['type'] === 'date') { |
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| 245 | 2 | $nextVersionDateTime = new \DateTime(); |
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| 246 | 2 | $nextVersion = new \MongoDate($nextVersionDateTime->getTimestamp()); |
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| 247 | 2 | $this->class->reflFields[$this->class->versionField]->setValue($document, $nextVersionDateTime); |
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| 248 | } |
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| 249 | 38 | $data[$versionMapping['name']] = $nextVersion; |
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| 250 | } |
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| 251 | |||
| 252 | 544 | $inserts[$oid] = $data; |
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| 253 | } |
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| 254 | |||
| 255 | 544 | if ($inserts) { |
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| 256 | try { |
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| 257 | 544 | $this->collection->batchInsert($inserts, $options); |
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| 258 | 7 | } catch (\MongoException $e) { |
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| 259 | 7 | $this->queuedInserts = array(); |
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| 260 | 7 | throw $e; |
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| 261 | } |
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| 262 | } |
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| 263 | |||
| 264 | /* All collections except for ones using addToSet have already been |
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| 265 | * saved. We have left these to be handled separately to avoid checking |
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| 266 | * collection for uniqueness on PHP side. |
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| 267 | */ |
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| 268 | 544 | foreach ($this->queuedInserts as $document) { |
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| 269 | 544 | $this->handleCollections($document, $options); |
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| 270 | } |
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| 271 | |||
| 272 | 544 | $this->queuedInserts = array(); |
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| 273 | 544 | } |
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| 274 | |||
| 275 | /** |
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| 276 | * Executes all queued document upserts. |
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| 277 | * |
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| 278 | * Queued documents with an ID are upserted individually. |
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| 279 | * |
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| 280 | * If no upserts are queued, invoking this method is a NOOP. |
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| 281 | * |
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| 282 | * @param array $options Options for batchInsert() and update() driver methods |
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| 283 | */ |
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| 284 | 87 | public function executeUpserts(array $options = array()) |
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| 285 | { |
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| 286 | 87 | if ( ! $this->queuedUpserts) { |
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| 287 | return; |
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| 288 | } |
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| 289 | |||
| 290 | 87 | $options = $this->getWriteOptions($options); |
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| 291 | 87 | foreach ($this->queuedUpserts as $oid => $document) { |
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| 292 | try { |
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| 293 | 87 | $this->executeUpsert($document, $options); |
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| 294 | 87 | $this->handleCollections($document, $options); |
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| 295 | 87 | unset($this->queuedUpserts[$oid]); |
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| 296 | } catch (\MongoException $e) { |
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| 297 | unset($this->queuedUpserts[$oid]); |
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| 298 | 87 | throw $e; |
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| 299 | } |
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| 300 | } |
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| 301 | 87 | } |
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| 302 | |||
| 303 | /** |
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| 304 | * Executes a single upsert in {@link executeUpserts} |
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| 305 | * |
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| 306 | * @param object $document |
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| 307 | * @param array $options |
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| 308 | */ |
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| 309 | 87 | private function executeUpsert($document, array $options) |
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| 310 | { |
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| 311 | 87 | $options['upsert'] = true; |
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| 312 | 87 | $criteria = $this->getQueryForDocument($document); |
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| 313 | |||
| 314 | 87 | $data = $this->pb->prepareUpsertData($document); |
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| 315 | |||
| 316 | // Set the initial version for each upsert |
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| 317 | 87 | View Code Duplication | if ($this->class->isVersioned) { |
| 318 | 3 | $versionMapping = $this->class->fieldMappings[$this->class->versionField]; |
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| 319 | 3 | if ($versionMapping['type'] === 'int') { |
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| 320 | 2 | $nextVersion = max(1, (int) $this->class->reflFields[$this->class->versionField]->getValue($document)); |
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| 321 | 2 | $this->class->reflFields[$this->class->versionField]->setValue($document, $nextVersion); |
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| 322 | 1 | } elseif ($versionMapping['type'] === 'date') { |
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| 323 | 1 | $nextVersionDateTime = new \DateTime(); |
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| 324 | 1 | $nextVersion = new \MongoDate($nextVersionDateTime->getTimestamp()); |
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| 325 | 1 | $this->class->reflFields[$this->class->versionField]->setValue($document, $nextVersionDateTime); |
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| 326 | } |
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| 327 | 3 | $data['$set'][$versionMapping['name']] = $nextVersion; |
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| 328 | } |
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| 329 | |||
| 330 | 87 | foreach (array_keys($criteria) as $field) { |
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| 331 | 87 | unset($data['$set'][$field]); |
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| 332 | } |
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| 333 | |||
| 334 | // Do not send an empty $set modifier |
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| 335 | 87 | if (empty($data['$set'])) { |
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| 336 | 17 | unset($data['$set']); |
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| 337 | } |
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| 338 | |||
| 339 | /* If there are no modifiers remaining, we're upserting a document with |
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| 340 | * an identifier as its only field. Since a document with the identifier |
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| 341 | * may already exist, the desired behavior is "insert if not exists" and |
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| 342 | * NOOP otherwise. MongoDB 2.6+ does not allow empty modifiers, so $set |
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| 343 | * the identifier to the same value in our criteria. |
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| 344 | * |
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| 345 | * This will fail for versions before MongoDB 2.6, which require an |
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| 346 | * empty $set modifier. The best we can do (without attempting to check |
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| 347 | * server versions in advance) is attempt the 2.6+ behavior and retry |
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| 348 | * after the relevant exception. |
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| 349 | * |
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| 350 | * See: https://jira.mongodb.org/browse/SERVER-12266 |
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| 351 | */ |
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| 352 | 87 | if (empty($data)) { |
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| 353 | 17 | $retry = true; |
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| 354 | 17 | $data = array('$set' => array('_id' => $criteria['_id'])); |
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| 355 | } |
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| 356 | |||
| 357 | try { |
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| 358 | 87 | $this->collection->update($criteria, $data, $options); |
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| 359 | 87 | return; |
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| 360 | } catch (\MongoCursorException $e) { |
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| 361 | if (empty($retry) || strpos($e->getMessage(), 'Mod on _id not allowed') === false) { |
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| 362 | throw $e; |
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| 363 | } |
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| 364 | } |
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| 365 | |||
| 366 | $this->collection->update($criteria, array('$set' => new \stdClass), $options); |
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| 367 | } |
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| 368 | |||
| 369 | /** |
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| 370 | * Updates the already persisted document if it has any new changesets. |
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| 371 | * |
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| 372 | * @param object $document |
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| 373 | * @param array $options Array of options to be used with update() |
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| 374 | * @throws \Doctrine\ODM\MongoDB\LockException |
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| 375 | */ |
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| 376 | 225 | public function update($document, array $options = array()) |
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| 377 | { |
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| 378 | 225 | $update = $this->pb->prepareUpdateData($document); |
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| 379 | |||
| 380 | 225 | $query = $this->getQueryForDocument($document); |
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| 381 | |||
| 382 | 223 | foreach (array_keys($query) as $field) { |
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| 383 | 223 | unset($update['$set'][$field]); |
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| 384 | } |
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| 385 | |||
| 386 | 223 | if (empty($update['$set'])) { |
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| 387 | 93 | unset($update['$set']); |
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| 388 | } |
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| 389 | |||
| 390 | |||
| 391 | // Include versioning logic to set the new version value in the database |
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| 392 | // and to ensure the version has not changed since this document object instance |
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| 393 | // was fetched from the database |
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| 394 | 223 | $nextVersion = null; |
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| 395 | 223 | if ($this->class->isVersioned) { |
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| 396 | 33 | $versionMapping = $this->class->fieldMappings[$this->class->versionField]; |
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| 397 | 33 | $currentVersion = $this->class->reflFields[$this->class->versionField]->getValue($document); |
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| 398 | 33 | if ($versionMapping['type'] === 'int') { |
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| 399 | 30 | $nextVersion = $currentVersion + 1; |
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| 400 | 30 | $update['$inc'][$versionMapping['name']] = 1; |
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| 401 | 30 | $query[$versionMapping['name']] = $currentVersion; |
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| 402 | 3 | } elseif ($versionMapping['type'] === 'date') { |
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| 403 | 3 | $nextVersion = new \DateTime(); |
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| 404 | 3 | $update['$set'][$versionMapping['name']] = new \MongoDate($nextVersion->getTimestamp()); |
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| 405 | 3 | $query[$versionMapping['name']] = new \MongoDate($currentVersion->getTimestamp()); |
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| 406 | } |
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| 407 | } |
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| 408 | |||
| 409 | 223 | if ( ! empty($update)) { |
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| 410 | // Include locking logic so that if the document object in memory is currently |
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| 411 | // locked then it will remove it, otherwise it ensures the document is not locked. |
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| 412 | 156 | if ($this->class->isLockable) { |
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| 413 | 11 | $isLocked = $this->class->reflFields[$this->class->lockField]->getValue($document); |
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| 414 | 11 | $lockMapping = $this->class->fieldMappings[$this->class->lockField]; |
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| 415 | 11 | if ($isLocked) { |
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| 416 | 2 | $update['$unset'] = array($lockMapping['name'] => true); |
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| 417 | } else { |
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| 418 | 9 | $query[$lockMapping['name']] = array('$exists' => false); |
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| 419 | } |
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| 420 | } |
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| 421 | |||
| 422 | 156 | $options = $this->getWriteOptions($options); |
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| 423 | |||
| 424 | 156 | $result = $this->collection->update($query, $update, $options); |
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| 425 | |||
| 426 | 156 | if (($this->class->isVersioned || $this->class->isLockable) && ! $result['n']) { |
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| 427 | 6 | throw LockException::lockFailed($document); |
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| 428 | 151 | } elseif ($this->class->isVersioned) { |
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| 429 | 28 | $this->class->reflFields[$this->class->versionField]->setValue($document, $nextVersion); |
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| 430 | } |
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| 431 | } |
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| 432 | |||
| 433 | 218 | $this->handleCollections($document, $options); |
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| 434 | 218 | } |
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| 435 | |||
| 436 | /** |
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| 437 | * Removes document from mongo |
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| 438 | * |
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| 439 | * @param mixed $document |
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| 440 | * @param array $options Array of options to be used with remove() |
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| 441 | * @throws \Doctrine\ODM\MongoDB\LockException |
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| 442 | */ |
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| 443 | 34 | public function delete($document, array $options = array()) |
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| 444 | { |
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| 445 | 34 | $query = $this->getQueryForDocument($document); |
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| 446 | |||
| 447 | 34 | if ($this->class->isLockable) { |
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| 448 | 2 | $query[$this->class->lockField] = array('$exists' => false); |
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| 449 | } |
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| 450 | |||
| 451 | 34 | $options = $this->getWriteOptions($options); |
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| 452 | |||
| 453 | 34 | $result = $this->collection->remove($query, $options); |
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| 454 | |||
| 455 | 34 | if (($this->class->isVersioned || $this->class->isLockable) && ! $result['n']) { |
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| 456 | 2 | throw LockException::lockFailed($document); |
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| 457 | } |
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| 458 | 32 | } |
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| 459 | |||
| 460 | /** |
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| 461 | * Refreshes a managed document. |
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| 462 | * |
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| 463 | * @param string $id |
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| 464 | * @param object $document The document to refresh. |
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| 465 | * |
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| 466 | * @deprecated The first argument is deprecated. |
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| 467 | */ |
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| 468 | 21 | public function refresh($id, $document) |
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| 469 | { |
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| 470 | 21 | $query = $this->getQueryForDocument($document); |
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| 471 | 21 | $data = $this->collection->findOne($query); |
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| 472 | 21 | $data = $this->hydratorFactory->hydrate($document, $data); |
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| 473 | 21 | $this->uow->setOriginalDocumentData($document, $data); |
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| 474 | 21 | } |
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| 475 | |||
| 476 | /** |
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| 477 | * Finds a document by a set of criteria. |
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| 478 | * |
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| 479 | * If a scalar or MongoId is provided for $criteria, it will be used to |
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| 480 | * match an _id value. |
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| 481 | * |
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| 482 | * @param mixed $criteria Query criteria |
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| 483 | * @param object $document Document to load the data into. If not specified, a new document is created. |
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| 484 | * @param array $hints Hints for document creation |
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| 485 | * @param integer $lockMode |
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| 486 | * @param array $sort Sort array for Cursor::sort() |
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| 487 | * @throws \Doctrine\ODM\MongoDB\LockException |
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| 488 | * @return object|null The loaded and managed document instance or null if no document was found |
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| 489 | * @todo Check identity map? loadById method? Try to guess whether $criteria is the id? |
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| 490 | */ |
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| 491 | 384 | public function load($criteria, $document = null, array $hints = array(), $lockMode = 0, array $sort = null) |
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| 492 | { |
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| 493 | // TODO: remove this |
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| 494 | 384 | if ($criteria === null || is_scalar($criteria) || $criteria instanceof \MongoId) { |
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| 495 | $criteria = array('_id' => $criteria); |
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| 496 | } |
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| 497 | |||
| 498 | 384 | $criteria = $this->prepareQueryOrNewObj($criteria); |
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| 499 | 384 | $criteria = $this->addDiscriminatorToPreparedQuery($criteria); |
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| 500 | 384 | $criteria = $this->addFilterToPreparedQuery($criteria); |
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| 501 | |||
| 502 | 384 | $cursor = $this->collection->find($criteria); |
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| 503 | |||
| 504 | 384 | if (null !== $sort) { |
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| 505 | 105 | $cursor->sort($this->prepareSortOrProjection($sort)); |
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| 506 | } |
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| 507 | |||
| 508 | 384 | $result = $cursor->getSingleResult(); |
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| 509 | |||
| 510 | 384 | if ($this->class->isLockable) { |
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| 511 | 1 | $lockMapping = $this->class->fieldMappings[$this->class->lockField]; |
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| 512 | 1 | if (isset($result[$lockMapping['name']]) && $result[$lockMapping['name']] === LockMode::PESSIMISTIC_WRITE) { |
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| 513 | 1 | throw LockException::lockFailed($result); |
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| 514 | } |
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| 515 | } |
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| 516 | |||
| 517 | 383 | return $this->createDocument($result, $document, $hints); |
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| 518 | } |
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| 519 | |||
| 520 | /** |
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| 521 | * Finds documents by a set of criteria. |
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| 522 | * |
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| 523 | * @param array $criteria Query criteria |
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| 524 | * @param array $sort Sort array for Cursor::sort() |
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| 525 | * @param integer|null $limit Limit for Cursor::limit() |
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| 526 | * @param integer|null $skip Skip for Cursor::skip() |
||
| 527 | * @return Cursor |
||
| 528 | */ |
||
| 529 | 26 | public function loadAll(array $criteria = array(), array $sort = null, $limit = null, $skip = null) |
|
| 530 | { |
||
| 531 | 26 | $criteria = $this->prepareQueryOrNewObj($criteria); |
|
| 532 | 26 | $criteria = $this->addDiscriminatorToPreparedQuery($criteria); |
|
| 533 | 26 | $criteria = $this->addFilterToPreparedQuery($criteria); |
|
| 534 | |||
| 535 | 26 | $baseCursor = $this->collection->find($criteria); |
|
| 536 | 26 | $cursor = $this->wrapCursor($baseCursor); |
|
| 537 | |||
| 538 | 26 | if (null !== $sort) { |
|
| 539 | 3 | $cursor->sort($sort); |
|
| 540 | } |
||
| 541 | |||
| 542 | 26 | if (null !== $limit) { |
|
| 543 | 2 | $cursor->limit($limit); |
|
| 544 | } |
||
| 545 | |||
| 546 | 26 | if (null !== $skip) { |
|
| 547 | 2 | $cursor->skip($skip); |
|
| 548 | } |
||
| 549 | |||
| 550 | 26 | return $cursor; |
|
| 551 | } |
||
| 552 | |||
| 553 | /** |
||
| 554 | * @param object $document |
||
| 555 | * |
||
| 556 | * @return array |
||
| 557 | * @throws MongoDBException |
||
| 558 | */ |
||
| 559 | 303 | private function getShardKeyQuery($document) |
|
| 560 | { |
||
| 561 | 303 | if ( ! $this->class->isSharded()) { |
|
| 562 | 294 | return array(); |
|
| 563 | } |
||
| 564 | |||
| 565 | 9 | $shardKey = $this->class->getShardKey(); |
|
| 566 | 9 | $keys = array_keys($shardKey['keys']); |
|
| 567 | 9 | $data = $this->uow->getDocumentActualData($document); |
|
| 568 | |||
| 569 | 9 | $shardKeyQueryPart = array(); |
|
| 570 | 9 | foreach ($keys as $key) { |
|
| 571 | 9 | $mapping = $this->class->getFieldMappingByDbFieldName($key); |
|
| 572 | 9 | $this->guardMissingShardKey($document, $key, $data); |
|
| 573 | 7 | $value = Type::getType($mapping['type'])->convertToDatabaseValue($data[$mapping['fieldName']]); |
|
| 574 | 7 | $shardKeyQueryPart[$key] = $value; |
|
| 575 | } |
||
| 576 | |||
| 577 | 7 | return $shardKeyQueryPart; |
|
| 578 | } |
||
| 579 | |||
| 580 | /** |
||
| 581 | * Wraps the supplied base cursor in the corresponding ODM class. |
||
| 582 | * |
||
| 583 | * @param CursorInterface $baseCursor |
||
| 584 | * @return Cursor |
||
| 585 | */ |
||
| 586 | 26 | private function wrapCursor(CursorInterface $baseCursor) |
|
| 587 | { |
||
| 588 | 26 | return new Cursor($baseCursor, $this->dm->getUnitOfWork(), $this->class); |
|
| 589 | } |
||
| 590 | |||
| 591 | /** |
||
| 592 | * Checks whether the given managed document exists in the database. |
||
| 593 | * |
||
| 594 | * @param object $document |
||
| 595 | * @return boolean TRUE if the document exists in the database, FALSE otherwise. |
||
| 596 | */ |
||
| 597 | 3 | public function exists($document) |
|
| 598 | { |
||
| 599 | 3 | $id = $this->class->getIdentifierObject($document); |
|
| 600 | 3 | return (boolean) $this->collection->findOne(array('_id' => $id), array('_id')); |
|
| 601 | } |
||
| 602 | |||
| 603 | /** |
||
| 604 | * Locks document by storing the lock mode on the mapped lock field. |
||
| 605 | * |
||
| 606 | * @param object $document |
||
| 607 | * @param int $lockMode |
||
| 608 | */ |
||
| 609 | 5 | public function lock($document, $lockMode) |
|
| 610 | { |
||
| 611 | 5 | $id = $this->uow->getDocumentIdentifier($document); |
|
| 612 | 5 | $criteria = array('_id' => $this->class->getDatabaseIdentifierValue($id)); |
|
| 613 | 5 | $lockMapping = $this->class->fieldMappings[$this->class->lockField]; |
|
| 614 | 5 | $this->collection->update($criteria, array('$set' => array($lockMapping['name'] => $lockMode))); |
|
| 615 | 5 | $this->class->reflFields[$this->class->lockField]->setValue($document, $lockMode); |
|
| 616 | 5 | } |
|
| 617 | |||
| 618 | /** |
||
| 619 | * Releases any lock that exists on this document. |
||
| 620 | * |
||
| 621 | * @param object $document |
||
| 622 | */ |
||
| 623 | 1 | public function unlock($document) |
|
| 624 | { |
||
| 625 | 1 | $id = $this->uow->getDocumentIdentifier($document); |
|
| 626 | 1 | $criteria = array('_id' => $this->class->getDatabaseIdentifierValue($id)); |
|
| 627 | 1 | $lockMapping = $this->class->fieldMappings[$this->class->lockField]; |
|
| 628 | 1 | $this->collection->update($criteria, array('$unset' => array($lockMapping['name'] => true))); |
|
| 629 | 1 | $this->class->reflFields[$this->class->lockField]->setValue($document, null); |
|
| 630 | 1 | } |
|
| 631 | |||
| 632 | /** |
||
| 633 | * Creates or fills a single document object from an query result. |
||
| 634 | * |
||
| 635 | * @param object $result The query result. |
||
| 636 | * @param object $document The document object to fill, if any. |
||
| 637 | * @param array $hints Hints for document creation. |
||
| 638 | * @return object The filled and managed document object or NULL, if the query result is empty. |
||
| 639 | */ |
||
| 640 | 383 | private function createDocument($result, $document = null, array $hints = array()) |
|
| 641 | { |
||
| 642 | 383 | if ($result === null) { |
|
| 643 | 126 | return null; |
|
| 644 | } |
||
| 645 | |||
| 646 | 330 | if ($document !== null) { |
|
| 647 | 38 | $hints[Query::HINT_REFRESH] = true; |
|
| 648 | 38 | $id = $this->class->getPHPIdentifierValue($result['_id']); |
|
| 649 | 38 | $this->uow->registerManaged($document, $id, $result); |
|
| 650 | } |
||
| 651 | |||
| 652 | 330 | return $this->uow->getOrCreateDocument($this->class->name, $result, $hints, $document); |
|
| 653 | } |
||
| 654 | |||
| 655 | /** |
||
| 656 | * Loads a PersistentCollection data. Used in the initialize() method. |
||
| 657 | * |
||
| 658 | * @param PersistentCollectionInterface $collection |
||
| 659 | */ |
||
| 660 | 171 | public function loadCollection(PersistentCollectionInterface $collection) |
|
| 661 | { |
||
| 662 | 171 | $mapping = $collection->getMapping(); |
|
| 663 | 171 | switch ($mapping['association']) { |
|
| 664 | 171 | case ClassMetadata::EMBED_MANY: |
|
| 665 | 118 | $this->loadEmbedManyCollection($collection); |
|
| 666 | 118 | break; |
|
| 667 | |||
| 668 | 70 | case ClassMetadata::REFERENCE_MANY: |
|
| 669 | 70 | if (isset($mapping['repositoryMethod']) && $mapping['repositoryMethod']) { |
|
| 670 | 5 | $this->loadReferenceManyWithRepositoryMethod($collection); |
|
| 671 | } else { |
||
| 672 | 65 | if ($mapping['isOwningSide']) { |
|
| 673 | 55 | $this->loadReferenceManyCollectionOwningSide($collection); |
|
| 674 | } else { |
||
| 675 | 14 | $this->loadReferenceManyCollectionInverseSide($collection); |
|
| 676 | } |
||
| 677 | } |
||
| 678 | 69 | break; |
|
| 679 | } |
||
| 680 | 170 | } |
|
| 681 | |||
| 682 | 118 | private function loadEmbedManyCollection(PersistentCollectionInterface $collection) |
|
| 683 | { |
||
| 684 | 118 | $embeddedDocuments = $collection->getMongoData(); |
|
| 685 | 118 | $mapping = $collection->getMapping(); |
|
| 686 | 118 | $owner = $collection->getOwner(); |
|
| 687 | 118 | if ($embeddedDocuments) { |
|
| 688 | 89 | foreach ($embeddedDocuments as $key => $embeddedDocument) { |
|
| 689 | 89 | $className = $this->uow->getClassNameForAssociation($mapping, $embeddedDocument); |
|
| 690 | 89 | $embeddedMetadata = $this->dm->getClassMetadata($className); |
|
| 691 | 89 | $embeddedDocumentObject = $embeddedMetadata->newInstance(); |
|
| 692 | |||
| 693 | 89 | $this->uow->setParentAssociation($embeddedDocumentObject, $mapping, $owner, $mapping['name'] . '.' . $key); |
|
| 694 | |||
| 695 | 89 | $data = $this->hydratorFactory->hydrate($embeddedDocumentObject, $embeddedDocument, $collection->getHints()); |
|
| 696 | 89 | $id = $embeddedMetadata->identifier && isset($data[$embeddedMetadata->identifier]) |
|
| 697 | 22 | ? $data[$embeddedMetadata->identifier] |
|
| 698 | 89 | : null; |
|
| 699 | |||
| 700 | 89 | if (empty($collection->getHints()[Query::HINT_READ_ONLY])) { |
|
| 701 | 88 | $this->uow->registerManaged($embeddedDocumentObject, $id, $data); |
|
| 702 | } |
||
| 703 | 89 | if (CollectionHelper::isHash($mapping['strategy'])) { |
|
| 704 | 25 | $collection->set($key, $embeddedDocumentObject); |
|
| 705 | } else { |
||
| 706 | 89 | $collection->add($embeddedDocumentObject); |
|
| 707 | } |
||
| 708 | } |
||
| 709 | } |
||
| 710 | 118 | } |
|
| 711 | |||
| 712 | 55 | private function loadReferenceManyCollectionOwningSide(PersistentCollectionInterface $collection) |
|
| 713 | { |
||
| 714 | 55 | $hints = $collection->getHints(); |
|
| 715 | 55 | $mapping = $collection->getMapping(); |
|
| 716 | 55 | $groupedIds = array(); |
|
| 717 | |||
| 718 | 55 | $sorted = isset($mapping['sort']) && $mapping['sort']; |
|
| 719 | |||
| 720 | 55 | foreach ($collection->getMongoData() as $key => $reference) { |
|
| 721 | 50 | $className = $this->uow->getClassNameForAssociation($mapping, $reference); |
|
| 722 | 50 | $mongoId = ClassMetadataInfo::getReferenceId($reference, $mapping['storeAs']); |
|
| 723 | 50 | $id = $this->dm->getClassMetadata($className)->getPHPIdentifierValue($mongoId); |
|
| 724 | |||
| 725 | // create a reference to the class and id |
||
| 726 | 50 | $reference = $this->dm->getReference($className, $id); |
|
| 727 | |||
| 728 | // no custom sort so add the references right now in the order they are embedded |
||
| 729 | 50 | if ( ! $sorted) { |
|
| 730 | 49 | if (CollectionHelper::isHash($mapping['strategy'])) { |
|
| 731 | 2 | $collection->set($key, $reference); |
|
| 732 | } else { |
||
| 733 | 47 | $collection->add($reference); |
|
| 734 | } |
||
| 735 | } |
||
| 736 | |||
| 737 | // only query for the referenced object if it is not already initialized or the collection is sorted |
||
| 738 | 50 | if (($reference instanceof Proxy && ! $reference->__isInitialized__) || $sorted) { |
|
| 739 | 50 | $groupedIds[$className][] = $mongoId; |
|
| 740 | } |
||
| 741 | } |
||
| 742 | 55 | foreach ($groupedIds as $className => $ids) { |
|
| 743 | 35 | $class = $this->dm->getClassMetadata($className); |
|
| 744 | 35 | $mongoCollection = $this->dm->getDocumentCollection($className); |
|
| 745 | 35 | $criteria = $this->cm->merge( |
|
| 746 | 35 | array('_id' => array('$in' => array_values($ids))), |
|
| 747 | 35 | $this->dm->getFilterCollection()->getFilterCriteria($class), |
|
| 748 | 35 | isset($mapping['criteria']) ? $mapping['criteria'] : array() |
|
| 749 | ); |
||
| 750 | 35 | $criteria = $this->uow->getDocumentPersister($className)->prepareQueryOrNewObj($criteria); |
|
| 751 | 35 | $cursor = $mongoCollection->find($criteria); |
|
| 752 | 35 | if (isset($mapping['sort'])) { |
|
| 753 | 35 | $cursor->sort($mapping['sort']); |
|
| 754 | } |
||
| 755 | 35 | if (isset($mapping['limit'])) { |
|
| 756 | $cursor->limit($mapping['limit']); |
||
| 757 | } |
||
| 758 | 35 | if (isset($mapping['skip'])) { |
|
| 759 | $cursor->skip($mapping['skip']); |
||
| 760 | } |
||
| 761 | 35 | if ( ! empty($hints[Query::HINT_SLAVE_OKAY])) { |
|
| 762 | $cursor->slaveOkay(true); |
||
| 763 | } |
||
| 764 | 35 | View Code Duplication | if ( ! empty($hints[Query::HINT_READ_PREFERENCE])) { |
| 765 | $cursor->setReadPreference($hints[Query::HINT_READ_PREFERENCE], $hints[Query::HINT_READ_PREFERENCE_TAGS]); |
||
| 766 | } |
||
| 767 | 35 | $documents = $cursor->toArray(false); |
|
| 768 | 35 | foreach ($documents as $documentData) { |
|
| 769 | 34 | $document = $this->uow->getById($documentData['_id'], $class); |
|
| 770 | 34 | if ($document instanceof Proxy && ! $document->__isInitialized()) { |
|
| 771 | 34 | $data = $this->hydratorFactory->hydrate($document, $documentData); |
|
| 772 | 34 | $this->uow->setOriginalDocumentData($document, $data); |
|
| 773 | 34 | $document->__isInitialized__ = true; |
|
| 774 | } |
||
| 775 | 34 | if ($sorted) { |
|
| 776 | 35 | $collection->add($document); |
|
| 777 | } |
||
| 778 | } |
||
| 779 | } |
||
| 780 | 55 | } |
|
| 781 | |||
| 782 | 14 | private function loadReferenceManyCollectionInverseSide(PersistentCollectionInterface $collection) |
|
| 790 | |||
| 791 | /** |
||
| 792 | * @param PersistentCollectionInterface $collection |
||
| 793 | * |
||
| 794 | * @return Query |
||
| 795 | */ |
||
| 796 | 17 | public function createReferenceManyInverseSideQuery(PersistentCollectionInterface $collection) |
|
| 797 | { |
||
| 798 | 17 | $hints = $collection->getHints(); |
|
| 799 | 17 | $mapping = $collection->getMapping(); |
|
| 800 | 17 | $owner = $collection->getOwner(); |
|
| 801 | 17 | $ownerClass = $this->dm->getClassMetadata(get_class($owner)); |
|
| 802 | 17 | $targetClass = $this->dm->getClassMetadata($mapping['targetDocument']); |
|
| 803 | 17 | $mappedByMapping = isset($targetClass->fieldMappings[$mapping['mappedBy']]) ? $targetClass->fieldMappings[$mapping['mappedBy']] : array(); |
|
| 804 | 17 | $mappedByFieldName = ClassMetadataInfo::getReferenceFieldName(isset($mappedByMapping['storeAs']) ? $mappedByMapping['storeAs'] : ClassMetadataInfo::REFERENCE_STORE_AS_DB_REF, $mapping['mappedBy']); |
|
| 805 | |||
| 806 | 17 | $criteria = $this->cm->merge( |
|
| 807 | 17 | array($mappedByFieldName => $ownerClass->getIdentifierObject($owner)), |
|
| 808 | 17 | $this->dm->getFilterCollection()->getFilterCriteria($targetClass), |
|
| 809 | 17 | isset($mapping['criteria']) ? $mapping['criteria'] : array() |
|
| 810 | ); |
||
| 811 | 17 | $criteria = $this->uow->getDocumentPersister($mapping['targetDocument'])->prepareQueryOrNewObj($criteria); |
|
| 812 | 17 | $qb = $this->dm->createQueryBuilder($mapping['targetDocument']) |
|
| 813 | 17 | ->setQueryArray($criteria); |
|
| 814 | |||
| 815 | 17 | if (isset($mapping['sort'])) { |
|
| 836 | |||
| 837 | 5 | private function loadReferenceManyWithRepositoryMethod(PersistentCollectionInterface $collection) |
|
| 850 | |||
| 851 | /** |
||
| 852 | * @param PersistentCollectionInterface $collection |
||
| 853 | * |
||
| 854 | * @return CursorInterface |
||
| 855 | */ |
||
| 856 | 6 | public function createReferenceManyWithRepositoryMethodCursor(PersistentCollectionInterface $collection) |
|
| 897 | |||
| 898 | /** |
||
| 899 | * Prepare a sort or projection array by converting keys, which are PHP |
||
| 900 | * property names, to MongoDB field names. |
||
| 901 | * |
||
| 902 | * @param array $fields |
||
| 903 | * @return array |
||
| 904 | */ |
||
| 905 | 144 | public function prepareSortOrProjection(array $fields) |
|
| 915 | |||
| 916 | /** |
||
| 917 | * Prepare a mongodb field name and convert the PHP property names to MongoDB field names. |
||
| 918 | * |
||
| 919 | * @param string $fieldName |
||
| 920 | * @return string |
||
| 921 | */ |
||
| 922 | 109 | public function prepareFieldName($fieldName) |
|
| 928 | |||
| 929 | /** |
||
| 930 | * Adds discriminator criteria to an already-prepared query. |
||
| 931 | * |
||
| 932 | * This method should be used once for query criteria and not be used for |
||
| 933 | * nested expressions. It should be called before |
||
| 934 | * {@link DocumentPerister::addFilterToPreparedQuery()}. |
||
| 935 | * |
||
| 936 | * @param array $preparedQuery |
||
| 937 | * @return array |
||
| 938 | */ |
||
| 939 | 541 | public function addDiscriminatorToPreparedQuery(array $preparedQuery) |
|
| 955 | |||
| 956 | /** |
||
| 957 | * Adds filter criteria to an already-prepared query. |
||
| 958 | * |
||
| 959 | * This method should be used once for query criteria and not be used for |
||
| 960 | * nested expressions. It should be called after |
||
| 961 | * {@link DocumentPerister::addDiscriminatorToPreparedQuery()}. |
||
| 962 | * |
||
| 963 | * @param array $preparedQuery |
||
| 964 | * @return array |
||
| 965 | */ |
||
| 966 | 542 | public function addFilterToPreparedQuery(array $preparedQuery) |
|
| 980 | |||
| 981 | /** |
||
| 982 | * Prepares the query criteria or new document object. |
||
| 983 | * |
||
| 984 | * PHP field names and types will be converted to those used by MongoDB. |
||
| 985 | * |
||
| 986 | * @param array $query |
||
| 987 | * @param bool $isNewObj |
||
| 988 | * @return array |
||
| 989 | */ |
||
| 990 | 566 | public function prepareQueryOrNewObj(array $query, $isNewObj = false) |
|
| 1018 | |||
| 1019 | /** |
||
| 1020 | * Prepares a query value and converts the PHP value to the database value |
||
| 1021 | * if it is an identifier. |
||
| 1022 | * |
||
| 1023 | * It also handles converting $fieldName to the database name if they are different. |
||
| 1024 | * |
||
| 1025 | * @param string $fieldName |
||
| 1026 | * @param mixed $value |
||
| 1027 | * @param ClassMetadata $class Defaults to $this->class |
||
| 1028 | * @param bool $prepareValue Whether or not to prepare the value |
||
| 1029 | * @param bool $inNewObj Whether or not newObj is being prepared |
||
| 1030 | * @return array An array of tuples containing prepared field names and values |
||
| 1031 | */ |
||
| 1032 | 572 | private function prepareQueryElement($fieldName, $value = null, $class = null, $prepareValue = true, $inNewObj = false) |
|
| 1219 | |||
| 1220 | /** |
||
| 1221 | * Prepares a query expression. |
||
| 1222 | * |
||
| 1223 | * @param array|object $expression |
||
| 1224 | * @param ClassMetadata $class |
||
| 1225 | * @return array |
||
| 1226 | */ |
||
| 1227 | 75 | private function prepareQueryExpression($expression, $class) |
|
| 1254 | |||
| 1255 | /** |
||
| 1256 | * Checks whether the value has DBRef fields. |
||
| 1257 | * |
||
| 1258 | * This method doesn't check if the the value is a complete DBRef object, |
||
| 1259 | * although it should return true for a DBRef. Rather, we're checking that |
||
| 1260 | * the value has one or more fields for a DBref. In practice, this could be |
||
| 1261 | * $elemMatch criteria for matching a DBRef. |
||
| 1262 | * |
||
| 1263 | * @param mixed $value |
||
| 1264 | * @return boolean |
||
| 1265 | */ |
||
| 1266 | 76 | private function hasDBRefFields($value) |
|
| 1284 | |||
| 1285 | /** |
||
| 1286 | * Checks whether the value has query operators. |
||
| 1287 | * |
||
| 1288 | * @param mixed $value |
||
| 1289 | * @return boolean |
||
| 1290 | */ |
||
| 1291 | 80 | private function hasQueryOperators($value) |
|
| 1309 | |||
| 1310 | /** |
||
| 1311 | * Gets the array of discriminator values for the given ClassMetadata |
||
| 1312 | * |
||
| 1313 | * @param ClassMetadata $metadata |
||
| 1314 | * @return array |
||
| 1315 | */ |
||
| 1316 | 29 | private function getClassDiscriminatorValues(ClassMetadata $metadata) |
|
| 1332 | |||
| 1333 | 620 | private function handleCollections($document, $options) |
|
| 1352 | |||
| 1353 | /** |
||
| 1354 | * If the document is new, ignore shard key field value, otherwise throw an exception. |
||
| 1355 | * Also, shard key field should be present in actual document data. |
||
| 1356 | * |
||
| 1357 | * @param object $document |
||
| 1358 | * @param string $shardKeyField |
||
| 1359 | * @param array $actualDocumentData |
||
| 1360 | * |
||
| 1361 | * @throws MongoDBException |
||
| 1362 | */ |
||
| 1363 | 9 | private function guardMissingShardKey($document, $shardKeyField, $actualDocumentData) |
|
| 1379 | |||
| 1380 | /** |
||
| 1381 | * Get shard key aware query for single document. |
||
| 1382 | * |
||
| 1383 | * @param object $document |
||
| 1384 | * |
||
| 1385 | * @return array |
||
| 1386 | */ |
||
| 1387 | 300 | private function getQueryForDocument($document) |
|
| 1397 | |||
| 1398 | /** |
||
| 1399 | * @param array $options |
||
| 1400 | * |
||
| 1401 | * @return array |
||
| 1402 | */ |
||
| 1403 | 622 | private function getWriteOptions(array $options = array()) |
|
| 1413 | |||
| 1414 | /** |
||
| 1415 | * @param string $fieldName |
||
| 1416 | * @param mixed $value |
||
| 1417 | * @param array $mapping |
||
| 1418 | * @param bool $inNewObj |
||
| 1419 | * @return array |
||
| 1420 | */ |
||
| 1421 | 14 | private function prepareReference($fieldName, $value, array $mapping, $inNewObj) |
|
| 1461 | } |
||
| 1462 |
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: