Mongoid random document

Question

Lets say I have a Collection of users. Is there a way of using mongoid to find n random users in the collection where it does not return the same user twice? For now lets say

Answer 1

If you just want one document, and don't want to define a new criteria method, you could just do this:

random_model = Model.skip(rand(Model.count)).first

If you want to find a random model based on some criteria:

criteria = Model.scoped_whatever.where(conditions) # query example
random_model = criteria.skip(rand(criteria.count)).first