MongoWriteBatch::execute
(PECL mongo >= 1.5.0)
MongoWriteBatch::execute — Executes a batch of write operations
Beschreibung
$write_options
) : arrayExecutes the batch of write operations.
Parameter-Liste
-
write_options
Rückgabewerte
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 |
Fehler/Exceptions
A MongoWriteConcernException exception is thrown on failure.
Beispiele
Beispiel #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);
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
array(2) {
["nInserted"]=>
int(3)
["ok"]=>
bool(true)
}
Beispiel #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);
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
array(4) {
["nMatched"]=>
int(18)
["nModified"]=>
int(2)
["nUpserted"]=>
int(0)
["ok"]=>
bool(true)
}
Beispiel #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);
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
array(2) {
["nRemoved"]=>
int(1)
["ok"]=>
bool(true)
}
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