flexible ORM module for MongoDB databases

 MongoDBx::Class Perl module is a flexible object relational mapper
 (ORM) for MongoDB databases. Given a schema-like collection of
 document classes, MongoDBx::Class expands MongoDB objects (hash-refs
 in Perl) from the database into objects of those document classes, and
 collapses such objects back to the database.
 .
 MongoDBx::Class takes advantage of the fact that Perl's MongoDB driver
 is Moose-based to extend and tweak the driver's behavior, instead of
 wrapping it. This means MongoDBx::Class does not define its own
 syntax, so you simply use it exactly as you would the MongoDB driver
 directly. That said, MongoDBx::Class adds some sugar that enhances and
 simplifies the syntax unobtrusively (either use it or don't). Thus, it
 is relatively easy to convert your current MongoDB applications to
 MongoDBx::Class. A collection in MongoDBx::Class
 isa('MongoDB::Collection'), a database in MongoDBx::Class
 isa('MongoDB::Database'), etc.