[jpcx01]

Not sure I totally understand. But it looks like its just a rewrite of MongoMapper for Rails3? Seems like the structure is very similar.

What didn't you like about MongoMapper and/or Mongoid? Starting from scratch is a big job.

[spohlenz]

Firstly, MongoModel was started back in November '09 when both MongoModel and and Mongoid were much less mature than they are now. I spent some time contributing patches to MongoMapper but stumbled as I was working on edge rails.

MongoMapper in particular has come a long way since then but still has a few issues in my mind. For example, attributes are converted to/from their mongo representation every single time they are accessed, rather than only when the model is saved or loaded. I also believe MongoModel has a nicer model for typecasting property values (see http://gist.github.com/287379 for an example), and I disagree with the use of has_many associations for embedded collections.

MongoModel isn't perfect either, but it has been the path of least resistance for me in getting my app running on MongoDB.

[jpcx01]

Cool, thanks for the explanation. Btw, mongoid has a new association dsl that I think makes way more sense. embedded_in, embeds_many, referenced_in, references_many. I bet the project would love to see you as a contributor.