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Jim Menard 2009-02-01 10:25:50 -05:00
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@ -132,6 +132,10 @@ they be XGen::Mongo::Driver::ObjectID instances.)
The database itself inserts an _id value if none is specified when a record is
inserted.
The driver automatically sends the _id field to the database first, which is
how Mongo likes it. You don't have to worry about where the _id field is in
your hash record, or worry if you are using an OrderedHash or not.
=== Primary Key Factories
A primary key factory is a class you supply to a DB object that knows how to