Ok, so firstly Im not very in the know when it comes to Ruby, Rails, Mongo or even ActiveRecord so I apologise if these questions are fairly basic. Firstly, I have an "Event" model and I have added a many relationship to my "Comment" model. Now it is my (basic) understanding of mongo (or any document db) that foreign key lookups (or whatever they are called in mongo) are not advised, instead opting for storing as much as possible in a single document. With this in mind I would expect to have a single Events collection with the Comment JSON/BSON embedded in each document i.e.
event:
{
Title: "some event"
Comments : [
{ user_id: [object id], comment: "comment"},
{ user_id: [object id], comment: "other comment"}
]
}
Instead I am seeing that a comments collection has been created as well as the event collection. Would this be the correct way to map this relationship, if so how do I stop the comment collection been created and instead have the info embedded directly into the event? My guess is that I have to tell my Comment mapping not to have a _id property and thus not belong to its own collection.
EDIT: I found out that what I was looking for here in my first question was to use MongoMapper::EmbeddedDocument instead of including MongoMapper::Document
Secondly, I want users to be able to flag themselves as "attending" or just "interested" an event, which I assumed would be modelled as an array of reference user_id's on the event. So I initially thought it would be mapped as two "many" relationships, but as far as I can tell the name of the constant I am passing to the many method is used to create the getter/setters, which wouldn't work for me if I had two many relationships for the same type.
In other words, if I have this mapping:
class Event
many :users
end
Then it's my understanding that I will then have getters and setters ge