Added 'read' check; message name is only bold if unread

db/migrate/20170524181458_create_messages.rb

@@ -6,7 +6,9 @@ class CreateMessages < ActiveRecord::Migration
       t.references :user_target
       t.references :user_editor
       t.references :user_hidden
-      t.datetime :created_at
+      t.boolean :read, default: false
+
+      t.timestamps null: true
     end
   end
 end

db/migrate/20170613144233_add_user_editor_to_messages.rb

@@ -1,5 +0,0 @@
-class AddUserEditorToMessages < ActiveRecord::Migration
-  def change
-    add_reference :messages, :user_editor
-  end
-end