lib/kosher/offer.rb in kosher-0.5.0 vs lib/kosher/offer.rb in kosher-0.6.0

@@ -4,14 +4,14 @@
   #
   # This is an actual item offered on a particular venue by a seller.
   class Offer < Structure
     include Comparable
 
-    key :id
-    key :venue
-    key :item, :type => Structure
-    key :seller, :type => Structure
-    key :shipping, :type => Structure
+    key     :id
+    has_one :venue
+    has_one :item
+    has_one :seller
+    has_one :shipping
 
     # Compares offer with another offer.
     #
     # A kosher offer is better than an unkosher offer. If both offers are
     # kosher or unkosher, a lower-priced offer is better.