adds scope for only normal user comments

app/models/comment.rb

@@ -21,6 +21,7 @@ class Comment < ActiveRecord::Base
 
   scope :for_render, -> { with_hidden.includes(user: :organization) }
   scope :with_visible_author, -> { joins(:user).where("users.hidden_at IS NULL") }
+  scope :not_as_admin_or_moderator, -> { where("administrator_id IS NULL").where("moderator_id IS NULL")}
   scope :sort_by_flags, -> { order(flags_count: :desc, updated_at: :desc) }
 
   scope :sort_by_most_voted , -> { order(confidence_score: :desc, created_at: :desc) }

spec/models/comment_spec.rb

@@ -117,4 +117,15 @@ describe Comment do
       expect(comment.author_id).to eq(comment.user.id)
     end
   end
+
+  describe "not_as_admin_or_moderator" do
+    it "returns only comments posted as regular user" do
+      comment1 = create(:comment)
+      create(:comment, administrator_id: create(:administrator).id)
+      create(:comment, moderator_id: create(:moderator).id)
+
+      expect(Comment.not_as_admin_or_moderator.size).to eq(1)
+      expect(Comment.not_as_admin_or_moderator.first).to eq(comment1)
+    end
+  end
 end