(PECL mongo >=0.9.0)
MongoCollection::insert — Inserts a document into the collection
$a
[, array $options = array()
] )All strings sent to the database must be UTF-8. If a string is not UTF-8, a MongoException will be thrown. To insert (or query for) a non-UTF-8 string, use MongoBinData.
a
An array or object. If an object is used, it may not have protected or private properties.
Notă:
If the parameter does not have an _id key or property, a new MongoId instance will be created and assigned to it. This special behavior does not mean that the parameter is passed by reference.
options
Options for the insert.
"w"
Vedeți WriteConcerns. Valoarea implicită pentru MongoClient este 1.
"fsync"
O valoare boolean-ă, valoarea implicită este FALSE. Forțează sincronizarea pe disc a operațiunii de inserare înainte de a întoarce succes. Dacă are valoarea TRUE, se presupune efectuarea unei inserări aprobate și setarea w va fi modificată în 0.
"timeout"
valoare întreagă, implicit este MongoCursor::$timeout. Dacă "safe" este stabilit, aceasta va stabili pentru client durata de așteptare (în milisecunde) a răspunsului de la baza de date. Dacă baza de date nu răspunde în intervalul de timp stabilit, va fi generată o excepție MongoCursorTimeoutException.
"safe"
Dezaprobat. Utilizați opțiunea WriteConcern w.
Returns an array containing the status of the insertion if the
"w" option is set. Otherwise, returns TRUE if the
inserted array is not empty (a MongoException will be
thrown if the inserted array is empty).
If an array is returned, the following keys may be present:
ok
This should almost be 1 (unless last_error itself failed).
err
If this field is non-null, an error occurred on the previous operation. If this field is set, it will be a string describing the error that occurred.
code
If a database error occurred, the relevant error code will be passed back to the client.
errmsg
This field is set if something goes wrong with a database command. It is coupled with ok being 0. For example, if w is set and times out, errmsg will be set to "timed out waiting for slaves" and ok will be 0. If this field is set, it will be a string describing the error that occurred.
n
If the last operation was an update, upsert, or a remove, the number of documents affected will be returned. For insert operations, this value is always 0.
wtimeout
If the previous option timed out waiting for replication.
waited
How long the operation waited before timing out.
wtime
If w was set and the operation succeeded, how long it took to replicate to w servers.
upserted
If an upsert occurred, this field will contain the new record's _id field. For upserts, either this field or updatedExisting will be present (unless an error occurred).
updatedExisting
If an upsert updated an existing element, this field will be true. For upserts, either this field or upserted will be present (unless an error occurred).
Throws MongoException if the inserted document is empty or if it contains zero-length keys. Attempting to insert an object with protected and private properties will cause a zero-length key error.
Generează o excepție MongoCursorException dacă opțiunea "w" este stabilită și înscrierea eșuează.
Generează o excepție MongoCursorTimeoutException dacă opțiunea "w" este stabilită la o valoare mai mare decât unu și operațiunea durează mai mult de MongoCursor::$timeout milisecunde. Aceasta nu va întrerupe operațiunea pe server, este un timeout de partea clientului. Operațiunea din MongoCollection::$wtimeout este în milisecunde.
| Versiunea | Descriere |
|---|---|
| 1.3.0 |
The options parameter no longer accepts a boolean
to signify a acknowledged write. Instead, this now has to be done with
array('w' => 1) (The default behaviour of
MongoClient).
|
| 1.2.0 | Added "timeout" option. |
| 1.0.11 | Disconnects on "not master" errors if "safe" is set. |
| 1.0.9 |
Added ability to pass integers to the "safe" option, which previously only accepted booleans. Added "fsync" option. The return type was changed to be an array containing error information if the "safe" option is used. Otherwise, a boolean is returned as before. |
| 1.0.5 | Changed second parameter to be an array of options. Pre-1.0.5, the second parameter was a boolean indicating the "safe" option. |
| 1.0.1 | Throw a MongoCursorException if the "safe" option is set and the insert fails. |
Example #1 MongoCollection::insert() _id example
An _id field will be added to the inserted document if not already present. Depending on how the parameter is passed, a generated _id may or may not be available to calling code.
<?php
$m = new MongoClient();
$collection = $m->selectCollection('test', 'phpmanual');
// If an array literal is used, there is no way to access the generated _id
$collection->insert(array('x' => 1));
// The _id is available on an array passed by value
$a = array('x' => 2);
$collection->insert($a);
var_dump($a);
// The _id is not available on an array passed by reference
$b = array('x' => 3);
$ref = &$b;
$collection->insert($ref);
var_dump($ref);
// The _id is available if a wrapping function does not trigger copy-on-write
function insert_no_cow($collection, $document)
{
$collection->insert($document);
}
$c = array('x' => 4);
insert_no_cow($collection, $c);
var_dump($c);
// The _id is not available if a wrapping function triggers copy-on-write
function insert_cow($collection, $document)
{
$document['y'] = 1;
$collection->insert($document);
}
$d = array('x' => 5);
insert_cow($collection, $d);
var_dump($d);
?>
Exemplul de mai sus va afișa ceva similar cu:
array(2) {
["x"]=>
int(2)
["_id"]=>
object(MongoId)#4 (0) {
}
}
array(1) {
["x"]=>
int(3)
}
array(2) {
["x"]=>
int(4)
["_id"]=>
object(MongoId)#5 (0) {
}
}
array(1) {
["x"]=>
int(5)
}
Example #2 MongoCollection::insert() acknowledged write example
This example shows inserting two elements with the same _id, which causes
a MongoCursorException to be thrown, as
w was set.
<?php
$person = array("name" => "Joe", "age" => 20);
$collection->insert($person);
// now $person has an _id field, so if we save it
// again, we will get an exception
try {
$collection->insert($person, array("w" => 1));
} catch(MongoCursorException $e) {
echo "Can't save the same person twice!\n";
}
?>