班级首页的活跃度和英雄榜由3个增加到6个

app/helpers/courses_helper.rb

@@ -895,7 +895,7 @@ module CoursesHelper
     desc.html_safe
   end
 
-  # 学生按作业总分排序，取前3个
+  # 学生按作业总分排序，取前6个
   def hero_homework_score(course, score_sort_by)
     sql_select = "SELECT members.*,(
           SELECT SUM(work_score)
@@ -907,14 +907,14 @@ module CoursesHelper
         FROM members
         JOIN students_for_courses
         ON students_for_courses.student_id = members.user_id AND students_for_courses.course_id = members.course_id
-        WHERE members.course_id = #{course.id} ORDER BY score #{score_sort_by} limit 3"
+        WHERE members.course_id = #{course.id} ORDER BY score #{score_sort_by} limit 6"
     homework_scores = Member.find_by_sql(sql_select)
   end
 
   def contributor_course_scor(course_id)
     ccs = CourseContributorScore.find_by_sql("SELECT * FROM `course_contributor_scores` where course_id = #{course_id} order by
         (message_num*2 + message_reply_num + news_reply_num + news_num +
-         resource_num*5 + journal_num + homework_journal_num ) desc limit 3;")
+         resource_num*5 + journal_num + homework_journal_num ) desc limit 6;")
   end
 
   #用户在该课程是否具有某个角色