How do I get unique elements in this array?

Question

Using Mongoid. Unfortunately, Mongoid does not allow for selecting unique / distinct! Have gotten these results. As you can see, there are 7 results. If you look carefully (at

Answer 1

Have you looked at this page?

http://www.mongodb.org/display/DOCS/Aggregation#Aggregation-Distinct

That might save you some time?

eg db.addresses.distinct("zip-code");