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MongoCollection::findAndModify
(PECL mongo >=1.3.0)
MongoCollection::findAndModify — Update a document and return it
Description
$query
[, array $update
[, array $fields
[, array $options
]]] ) : arrayThe findAndModify command atomically modifies and returns a single document. By default, the returned document does not include the modifications made on the update. To return the document with the modifications made on the update, use the new option.
Parameters
-
query -
The query criteria to search for.
-
update -
The update criteria.
-
fields -
Optionally only return these fields.
-
options -
An array of options to apply, such as remove the match document from the DB and return it.
Option Description sort array Determines which document the operation will modify if the query selects multiple documents. findAndModify will modify the first document in the sort order specified by this argument. remove boolean Optional if update field exists. When TRUE, removes the selected document. The default isFALSE.update array Optional if remove field exists. Performs an update of the selected document. new boolean Optional. When TRUE, returns the modified document rather than the original. The findAndModify method ignores the new option for remove operations. The default isFALSE.upsert boolean Optional. Used in conjunction with the update field. When TRUE, the findAndModify command creates a new document if the query returns no documents. The default is false. In MongoDB 2.2, the findAndModify command returnsNULLwhen upsert isTRUE.
Examples
Example #1 MongoCollection::findAndModify() example
<?php
$m = new Mongo;
$col = $m->selectDB("test")->jobs;
$col->insert(array(
"name" => "Next promo",
"inprogress" => false,
"priority" => 0,
"tasks" => array( "select product", "add inventory", "do placement"),
) );
$col->insert(array(
"name" => "Biz report",
"inprogress" => false,
"priority" => 1,
"tasks" => array( "run sales report", "email report" )
) );
$col->insert(array(
"name" => "Biz report",
"inprogress" => false,
"priority" => 2,
"tasks" => array( "run marketing report", "email report" )
),
array("w" => 1)
);
$retval = $col->findAndModify(
array("inprogress" => false, "name" => "Biz report"),
array('$set' => array('inprogress' => true, "started" => new MongoDate())),
null,
array(
"sort" => array("priority" => -1),
"new" => true,
)
);
var_dump($retval);
?>
The above example will output something similar to:
array(6) {
["_id"]=>
object(MongoId)#7 (1) {
["$id"]=>
string(24) "5091b5b244415e8cc3000002"
}
["inprogress"]=>
bool(true)
["name"]=>
string(10) "Biz report"
["priority"]=>
int(2)
["started"]=>
object(MongoDate)#8 (2) {
["sec"]=>
int(1351726514)
["usec"]=>
int(925000)
}
["tasks"]=>
array(2) {
[0]=>
string(20) "run marketing report"
[1]=>
string(12) "email report"
}
}
Example #2 MongoCollection::findAndModify() error handling
<?php
$m = new Mongo;
$col = $m->selectDB("test")->jobs;
try {
$retval = $col->findAndModify(
array("inprogress" => false, "name" => "Next promo"),
array('$pop' => array("tasks" => -1)),
array("tasks" => array('$pop' => array("stuff"))),
array("new" => true)
);
} catch(MongoResultException $e) {
echo $e->getCode(), " : ", $e->getMessage(), "\n";
var_dump($e->getDocument());
}
?>
The above example will output something similar to:
13097 : exception: Unsupported projection option: $pop
array(3) {
["errmsg"]=>
string(46) "exception: Unsupported projection option: $pop"
["code"]=>
int(13097)
["ok"]=>
float(0)
}
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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