How can I add a two column unique id to the mongodb in a meteor app?

Question

I am trying to create a two column unique index on the underlying mongodb in a meteor app and having trouble. I can\'t find anything in the meteor docs. I have tried from

Answer 1

The Smartpackage aldeed:collection2 supports unique indices, as well as schema-validation. Validation will both occure on server and client (reactivly), so you can react on errors on the client.