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<?php |
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/* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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if (class_exists('MongoCommandCursor', false)) { |
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return; |
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} |
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use Alcaeus\MongoDbAdapter\AbstractCursor; |
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use Alcaeus\MongoDbAdapter\TypeConverter; |
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class MongoCommandCursor extends AbstractCursor implements MongoCursorInterface |
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{ |
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/** |
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* @var array |
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*/ |
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private $command; |
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/** |
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* MongoCommandCursor constructor. |
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* @param MongoClient $connection |
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* @param string $ns |
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* @param array $command |
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*/ |
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public function __construct(MongoClient $connection, $ns, array $command = []) |
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{ |
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parent::__construct($connection, $ns); |
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$this->command = $command; |
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} |
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/** |
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* @param MongoClient $connection |
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* @param string $hash |
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* @param array $document |
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* @return MongoCommandCursor |
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*/ |
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public static function createFromDocument(MongoClient $connection, $hash, array $document) |
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{ |
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throw new \Exception('Not implemented'); |
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} |
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/** |
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* @return \MongoDB\Driver\Cursor |
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*/ |
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protected function ensureCursor() |
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{ |
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if ($this->cursor === null) { |
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$convertedCommand = TypeConverter::fromLegacy($this->command); |
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if (isset($convertedCommand->cursor)) { |
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if ($convertedCommand->cursor === true || $convertedCommand->cursor === []) { |
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$convertedCommand->cursor = new \stdClass(); |
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} |
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} |
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$originalReadPreference = null; |
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if (!$this->supportsReadPreference()) { |
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$originalReadPreference = $this->readPreference; |
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$this->setReadPreference(\MongoClient::RP_PRIMARY); |
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} |
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try { |
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$this->cursor = $this->db->command($convertedCommand, $this->getOptions()); |
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} finally { |
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if ($originalReadPreference) { |
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$this->readPreference = $originalReadPreference; |
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} |
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} |
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} |
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return $this->cursor; |
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} |
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/** |
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* @return array |
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*/ |
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protected function getCursorInfo() |
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{ |
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return [ |
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'ns' => $this->ns, |
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'limit' => 0, |
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'batchSize' => $this->batchSize, |
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'skip' => 0, |
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'flags' => 0, |
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'query' => $this->command, |
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'fields' => null, |
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]; |
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} |
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/** |
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* @return array |
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*/ |
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protected function getIterationInfo() |
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{ |
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$iterationInfo = parent::getIterationInfo(); |
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if ($iterationInfo['started_iterating']) { |
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$iterationInfo += [ |
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'firstBatchAt' => $iterationInfo['at'], |
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'firstBatchNumReturned' => $iterationInfo['numReturned'], |
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]; |
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$iterationInfo['at'] = 0; |
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$iterationInfo['numReturned'] = 0; |
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} |
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return $iterationInfo; |
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} |
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/** |
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* @return array |
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*/ |
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public function __sleep() |
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{ |
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return ['command'] + parent::__sleep(); |
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} |
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/** |
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* @see https://github.com/mongodb/mongo-php-driver-legacy/blob/1.6.14/db.c#L51 |
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* @return bool |
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*/ |
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private function supportsReadPreference() |
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{ |
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if ($this->command === []) { |
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return false; |
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} |
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$firstKey = array_keys($this->command)[0]; |
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switch ($firstKey) { |
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case 'count': |
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case 'group': |
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case 'dbStats': |
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case 'geoNear': |
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case 'geoWalk': |
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case 'distinct': |
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case 'aggregate': |
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case 'collStats': |
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case 'geoSearch': |
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case 'parallelCollectionScan': |
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return true; |
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case 'mapreduce': |
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case 'mapReduce': |
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return (isset($this->command['out']) && |
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is_array($this->command['out']) && |
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array_key_exists('inline', $this->command['out'])); |
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default: |
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return false; |
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} |
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} |
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} |
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alcaeus /
mongo-php-adapter
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.