去除评分时部分重复查询

app/controllers/homework_attach_controller.rb

@@ -435,6 +435,7 @@ class HomeworkAttachController < ApplicationController
     @is_teacher,@is_anonymous_comments,@m_score = params[:is_teacher]=="true",params[:is_anonymous_comments]=="true",params[:stars_value]
     @cur_page,@cur_type = params[:cur_page] || 1,params[:cur_type] || 5
     @homework = HomeworkAttach.find(params[:homework_id])
+    @stars_reates = @homework.rates(:quality)
     homework = @homework
     is_teacher = @is_teacher ? 1 : 0
     #保存评分@homework.rate(@m_score.to_i,User.current.id,:quality, (@is_teacher ? 1 : 0))
@@ -446,12 +447,13 @@ class HomeworkAttachController < ApplicationController
       else
         @homework.rates(:quality).new(:stars => @m_score, :rater_id => User.current.id, :is_teacher_score => is_teacher).save!
       end
+
       if homework.is_teacher_score == 0
         if is_teacher == 1
           homework.score = @m_score
           homework.is_teacher_score = 1
         else
-          homework.score = homework.rates(:quality).select("avg(stars)")
+          homework.score = @stars_reates.select("avg(stars)")
         end
       else
         if is_teacher == 1
@@ -468,7 +470,6 @@ class HomeworkAttachController < ApplicationController
       @homework.addjours User.current.id, params[:new_form][:user_message],0,@is_comprehensive_evaluation
     end
 
-    @stars_reates = @homework.rates(:quality)
     @teacher_stars = @stars_reates.where("is_teacher_score = 1") #老师评分列表
     @student_stars = @stars_reates.where("is_teacher_score = 0") #学生评分列表
     jours = @homework.journals_for_messages.where("is_comprehensive_evaluation = 3 or is_comprehensive_evaluation is null").order("created_on DESC")#jours留言 is null条件用以兼容历史数据