Using mgo for nested document fields

Question

I am using Golang with mgo driver for mongodb.

According to example at http://labix.org/mgo everything works great. But I can not find any documentation how mgo supports "dot notation" to be able to set and remove nested fields. So, how can I accesss nested fields?

Another question is related to go Lang name convention. When I fill my structure with s.FindId(...).One(&doc) can doc have fields with lower case names like "timer" instead of "Timer"?

Do mgo have possibility to get not structured document from mongo and just return map[string]string?

Answer 1

See mgo/bson docs on how to use lower case fields.