Function MongoCursor.sort
Controls the order
in which the query returns matching documents.
This method must be called before starting to iterate, or an exeption
will be thrown. If multiple calls to sort
() are issued, only
the last one will have an effect.
Prototype
MongoCursor sort(T)(
T order
);
Parameters
Name | Description |
---|---|
order | A BSON object convertible value that defines the sort order
of the result. This BSON object must be structured according to
the MongoDB documentation (see below). |
Returns
Reference to the modified original curser instance.
Throws
An exception if there is a query or communication error. Also throws if the method was called after beginning of iteration.
See Also
Example
import vibe .core .log;
import vibe .db .mongo .mongo;
void test()
{
auto db = connectMongoDB("127.0.0.1") .getDatabase("test");
auto coll = db["testcoll"];
// find all entries in reverse date order
foreach (entry; coll .find() .sort(["date": -1]))
logInfo("Entry: %s", entry);
// the same, but using a struct to avoid memory allocations
static struct Order { int date; }
foreach (entry; coll .find() .sort(Order(-1)))
logInfo("Entry: %s", entry);
}
Authors
Sönke Ludwig
Copyright
© 2012-2014 RejectedSoftware e.K.
License
Subject to the terms of the MIT license, as written in the included LICENSE.txt file.