1 files changed, 17 insertions, 0 deletions
diff --git a/app/models/note.rb b/app/models/note.rb
index e99bc2668d6..1b7e412e9c5 100644
--- a/app/models/note.rb
+++ b/app/models/note.rb
@@ -459,6 +459,23 @@ class Note < ActiveRecord::Base
                 )
   end
 
+  def superceded?(notes)
+    return false unless vote?
+    notes.each do |note|
+      next if note == self
+      if note.vote? &&
+          self[:author_id] == note[:author_id] &&
+          self[:created_at] <= note[:created_at]
+        return true
+      end
+    end
+    false
+  end
+
+  def vote?
+    upvote? || downvote?
+  end
+
   def votable?
     for_issue? || (for_merge_request? && !for_diff_line?)
   end