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<?php |
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declare(strict_types=1); |
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namespace Doctrine\Common\Cache; |
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use MongoDB\BSON\Binary; |
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use MongoDB\BSON\UTCDateTime; |
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use MongoDB\Collection; |
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use MongoDB\Database; |
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use MongoDB\Driver\Exception\Exception; |
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use MongoDB\Model\BSONDocument; |
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use function serialize; |
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use function time; |
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use function unserialize; |
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/** |
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* MongoDB cache provider for ext-mongodb |
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* |
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* @internal Do not use - will be removed in 2.0. Use MongoDBCache instead |
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*/ |
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class ExtMongoDBCache extends CacheProvider |
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{ |
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/** @var Database */ |
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private $database; |
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/** @var Collection */ |
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private $collection; |
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/** @var bool */ |
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private $expirationIndexCreated = false; |
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/** |
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* This provider will default to the write concern and read preference |
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* options set on the Database instance (or inherited from MongoDB or |
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* Client). Using an unacknowledged write concern (< 1) may make the return |
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* values of delete() and save() unreliable. Reading from secondaries may |
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* make contain() and fetch() unreliable. |
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* |
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* @see http://www.php.net/manual/en/mongo.readpreferences.php |
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* @see http://www.php.net/manual/en/mongo.writeconcerns.php |
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*/ |
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public function __construct(Collection $collection) |
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{ |
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// Ensure there is no typemap set - we want to use our own |
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$this->collection = $collection->withOptions(['typeMap' => null]); |
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$this->database = new Database($collection->getManager(), $collection->getDatabaseName()); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doFetch($id) |
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{ |
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$document = $this->collection->findOne(['_id' => $id], [MongoDBCache::DATA_FIELD, MongoDBCache::EXPIRATION_FIELD]); |
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if ($document === null) { |
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return false; |
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} |
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if ($this->isExpired($document)) { |
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$this->createExpirationIndex(); |
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$this->doDelete($id); |
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return false; |
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} |
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78 |
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return unserialize($document[MongoDBCache::DATA_FIELD]->getData()); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doContains($id) |
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{ |
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$document = $this->collection->findOne(['_id' => $id], [MongoDBCache::EXPIRATION_FIELD]); |
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if ($document === null) { |
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return false; |
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} |
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if ($this->isExpired($document)) { |
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$this->createExpirationIndex(); |
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$this->doDelete($id); |
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return false; |
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} |
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return true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doSave($id, $data, $lifeTime = 0) |
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{ |
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try { |
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73 |
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$this->collection->updateOne( |
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['_id' => $id], |
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[ |
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'$set' => [ |
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MongoDBCache::EXPIRATION_FIELD => ($lifeTime > 0 ? new UTCDateTime((time() + $lifeTime) * 1000): null), |
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MongoDBCache::DATA_FIELD => new Binary(serialize($data), Binary::TYPE_GENERIC), |
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], |
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], |
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69 |
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['upsert' => true] |
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1 |
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); |
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1 |
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} catch (Exception $e) { |
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1 |
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return false; |
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} |
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69 |
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return true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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74 |
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protected function doDelete($id) |
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{ |
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try { |
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$this->collection->deleteOne(['_id' => $id]); |
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74 |
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} catch (Exception $e) { |
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return false; |
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74 |
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} |
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74 |
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return true; |
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74 |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doFlush() |
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{ |
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try { |
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// Use remove() in lieu of drop() to maintain any collection indexes |
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$this->collection->deleteMany([]); |
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} catch (Exception $e) { |
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return false; |
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46 |
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} |
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return true; |
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46 |
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} |
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143
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/** |
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* {@inheritdoc} |
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*/ |
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146
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46 |
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protected function doGetStats() |
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{ |
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$uptime = null; |
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$memoryUsage = null; |
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150
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151
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try { |
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2 |
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$serverStatus = $this->database->command([ |
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'serverStatus' => 1, |
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'locks' => 0, |
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'metrics' => 0, |
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2 |
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'recordStats' => 0, |
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'repl' => 0, |
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])->toArray()[0]; |
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$uptime = $serverStatus['uptime'] ?? null; |
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} catch (Exception $e) { |
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161
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2 |
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} |
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162
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163
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try { |
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$collStats = $this->database->command(['collStats' => $this->collection->getCollectionName()])->toArray()[0]; |
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$memoryUsage = $collStats['size'] ?? null; |
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} catch (Exception $e) { |
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167
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1 |
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} |
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168
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169
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1 |
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return [ |
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1 |
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Cache::STATS_HITS => null, |
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Cache::STATS_MISSES => null, |
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Cache::STATS_UPTIME => $uptime, |
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1 |
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Cache::STATS_MEMORY_USAGE => $memoryUsage, |
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1 |
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Cache::STATS_MEMORY_AVAILABLE => null, |
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]; |
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} |
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178
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/** |
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1 |
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* Check if the document is expired. |
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180
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1 |
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*/ |
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181
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private function isExpired(BSONDocument $document) : bool |
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{ |
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return isset($document[MongoDBCache::EXPIRATION_FIELD]) && |
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$document[MongoDBCache::EXPIRATION_FIELD] instanceof UTCDateTime && |
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185
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1 |
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$document[MongoDBCache::EXPIRATION_FIELD]->toDateTime() < new \DateTime(); |
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186
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} |
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187
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1 |
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188
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private function createExpirationIndex() : void |
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189
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{ |
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190
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if ($this->expirationIndexCreated) { |
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191
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1 |
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return; |
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192
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} |
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193
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1 |
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194
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1 |
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$this->collection->createIndex([MongoDBCache::EXPIRATION_FIELD => 1], ['background' => true, 'expireAfterSeconds' => 0]); |
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} |
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196
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} |
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doctrine /
cache
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