Does anyone have a good resource for MongoMapper documentation? I've been reading through the mongoDB docs, but a lot of it doesn't convert across to ruby/mm. I've been trying to figure out how to do a SELECT FROM WHERE EXISTS
with little success.
db.things.find( { a : { $exists : true } } ); // return object if a is present
The only docs I've found so far these which have helped a little.
Thanks.