Add Time field to Band model

Author: johnnyshields

spec/support/models/band.rb

@@ -15,6 +15,7 @@ class Band
   field :rating, type: Float
   field :upserted, type: Mongoid::Boolean, default: false
   field :created, type: DateTime
+  field :updated, type: Time
   field :sales, type: BigDecimal
   field :decimal, type: BSON::Decimal128
   field :y, as: :years, type: Integer