VRFS-3316 : Review Uniqueness validation and spec.

ruby/lib/jam_ruby/models/review.rb

@@ -6,8 +6,15 @@ module JamRuby
     belongs_to :deleted_by_user, foreign_key: 'deleted_by_user_id', class_name: "JamRuby::User"
 
     validates :rating, presence:true, numericality: {only_integer: true, minimum:1, maximum:5}
+
     validates :target, presence:true
     validates :user, presence:true
+    validates :target_id, uniqueness: {scope: :user_id, message: "There is already a review for this User and Target."}
     
+    # # @options - can contain values:
+    # # * target_id (optional)
+    # def reduce(options)
+    #   arel = Review.where("deleted_at=?", nil)
+    # end
   end
 end

ruby/spec/jam_ruby/models/review_spec.rb

@@ -35,9 +35,17 @@ describe Review do
       end
 
       it "complete" do
-        review = Review.create(target:target, rating:3, user:@user)        
+        review = Review.create(target:target, rating:3, user:@user)
         review.valid?.should be_true
       end
+
+      it "unique" do
+        review = Review.create(target:target, rating:3, user:@user)
+        review.valid?.should be_true
+
+        review2 = Review.create(target:target, rating:3, user:@user)
+        review2.valid?.should be_false
+      end
     end
 
     context "validates review summary" do