Executes a batch of write operations


(PECL mongo >= 1.5.0)

MongoWriteBatch::executeExecutes a batch of write operations

Описание

final public array MongoWriteBatch::execute ( array $write_options )

Executes the batch of write operations.

Список параметров

write_options

See MongoWriteBatch::__construct.

Возвращаемые значения

Returns an array containing statistical information for the full batch. If the batch had to be split into multiple batches, the return value will aggregate the values from individual batches and return only the totals.

If the batch was empty, an array containing only the 'ok' field is returned (as TRUE) although nothing will be shipped over the wire (NOOP).

Array key Value meaning Returned for batch type
nInserted Number of inserted documents MongoWriteBatch::COMMAND_INSERT batch
nMatched Number of documents matching the query criteria MongoWriteBatch::COMMAND_UPDATE batch
nModified Number of documents actually needed to be modied MongoWriteBatch::COMMAND_UPDATE batch
nUpserted Number of upserted documents MongoWriteBatch::COMMAND_UPDATE batch
nRemoved Number of documents removed MongoWriteBatch::COMMAND_DELETE batch
ok Command success indicator All

Ошибки

A MongoWriteConcernException exception is thrown on failure.

Примеры

Пример #1 MongoWriteBatch::add() example

Batching up multiple insert operations

<?php
$mc 
= new MongoClient("localhost");
$collection $mc->selectCollection("test""test");


$docs = array();
$docs[] = array("my" => "demo");
$docs[] = array("is" => "working");
$docs[] = array("pretty" => "well");

$batch = new MongoInsertBatch($collection);
foreach(
$docs as $document) {
    
$batch->add($document);
}
$retval $batch->execute(array("w" => 1));
var_dump($retval);
?>

Результат выполнения данного примера:

 array(2) {   ["nInserted"]=>   int(3)   ["ok"]=>   bool(true) } 

Пример #2 MongoWriteBatch::add() example

Batching up multiple update operations

<?php
$mc 
= new MongoClient("localhost");
$collection $mc->selectCollection("test""test");


$item1 = array(
    
"q" => array("my" => "demo"),
    
"u" => array('$set' => array("try" => 1)),
    
"multi"  => false/* default value */
    
"upsert" => false/* default value */
);
$item2 = array(
    
"q" => array("is" => "working"),
    
"u" => array('$set' => array("try" => 2)),
    
"multi" => true,
);
$item3 = array(
    
"q" => array("created" => "new-document"),
    
"u" => array('$set' => array("try" => 3)),
    
"upsert" => true,
);

$batch = new MongoUpdateBatch($collection);
$batch->add($item1);
$batch->add($item2);
$batch->add($item3);
$retval $batch->execute(array("w" => 1));
var_dump($retval);

?>

Результат выполнения данного примера:

 array(4) {   ["nMatched"]=>   int(18)   ["nModified"]=>   int(2)   ["nUpserted"]=>   int(0)   ["ok"]=>   bool(true) } 

Пример #3 MongoWriteBatch::add() example

Batching up multiple delete operations

<?php
$mc 
= new MongoClient("localhost");
$collection $mc->selectCollection("test""test");


$item1 = array(
    
"q" => array("my" => "demo"),
    
"limit" => 1,
);
$item2 = array(
    
"q" => array("try" => 3),
    
"limit" => 1,
);


$batch = new MongoDeleteBatch($collection);
$batch->add($item1);
$batch->add($item2);
$retval $batch->execute(array("w" => 1));
var_dump($retval);
?>

Результат выполнения данного примера:

 array(2) {   ["nRemoved"]=>   int(1)   ["ok"]=>   bool(true) }