hack奖励金币的消息

app/decorators/grade_decorator.rb

@@ -31,6 +31,9 @@ module GradeDecorator
     when 'check_ta_answer' then
       game = Game.find_by(id: container_id)
       game.present? ? "查看实训“#{game.challenge.shixun.name}”第#{game.challenge.position}关的TA人解答消耗的金币" : ''
+    when 'hack' then
+      hack = Hack.find_by(id: container_id)
+      game.present? ? "完成了题目解答“#{hack.name}”，获得金币奖励：#{hack.score}" : ''
     end
   end
 end