作品列表的性能优化

app/controllers/homework_commons_controller.rb

@@ -89,7 +89,7 @@ class HomeworkCommonsController < ApplicationController
     @homework_commons = @homework_commons.page(page).per(15)
 
     if @homework_type == 4
-      @homework_commons = @homework_commons.includes(:homework_detail_manual, :published_settings, :shixuns, :student_works)
+      @homework_commons = @homework_commons.includes(:homework_detail_manual, :published_settings, :shixuns)
     elsif @homework_type == 3
         @homework_commons = @homework_commons.includes(:homework_detail_manual, :published_settings, :homework_detail_group)
     else