修改课程讨论区500问题

app/models/message.rb

@@ -128,8 +128,7 @@ class Message < ActiveRecord::Base
 
   # 发帖精辟更新发帖总数
   def add_boards_count
-    unless self.project.project_score.nil?
-      if self.project
+    if self.project && !project.project_score.nil?
       # 讨论区
       if self.parent_id.nil?
         count = self.project.project_score.board_num + 1
@@ -140,12 +139,10 @@ class Message < ActiveRecord::Base
       end
     end
   end
-  end
 
   # 删除帖子的时候更新帖子总数, 删除回复的时候总数不减少
   def decrease_boards_count
-    unless self.project.project_score.nil?
-      if self.project && self.parent_id.nil?
+    if self.project && !project.project_score.nil?
       # 讨论区
       if self.parent_id.nil?
         count = self.project.project_score.board_num - 1
@@ -156,7 +153,6 @@ class Message < ActiveRecord::Base
       end
     end
   end
-  end
 
   def reset_counters!
     if parent && parent.id