未批作业排序

app/controllers/homework_attach_controller.rb

@@ -12,11 +12,13 @@ class HomeworkAttachController < ApplicationController
   #获取未批作业列表
   def get_not_batch_homework
     sort, direction = params[:sort], params[:direction]
+    order_by = sort == 'score'? "s_score #{direction}" : "created_at #{direction}"
+    
     teachers = find_course_teachers @course
     all_homework_list = HomeworkAttach.eager_load(:attachments,:user,:rate_averages).find_by_sql("SELECT * FROM (SELECT homework_attaches.*,
         (SELECT AVG(stars) FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id = homework_attaches.id AND rater_id IN #{teachers}) AS t_score,
         (SELECT AVG(stars) FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id = homework_attaches.id AND rater_id NOT IN #{teachers}) AS s_score
-        FROM homework_attaches WHERE bid_id = #{@bid.id} ORDER BY s_score DESC,created_at ASC) AS table1
+        FROM homework_attaches WHERE bid_id = #{@bid.id} ORDER BY #{order_by}) AS table1
         WHERE table1.t_score IS NULL")
 
     @homework_list = paginateHelper all_homework_list,10
@@ -40,7 +42,7 @@ class HomeworkAttachController < ApplicationController
     @homework_list = paginateHelper all_homework_list,10
     @direction = direction == 'asc'? 'desc' : 'asc'
     respond_to do |format|
-      format.js
+      format.js.
     end
   end