fix:优化

cooleshow-user/user-biz/src/main/resources/config/mybatis/CourseHomeworkMapper.xml

@@ -202,23 +202,21 @@
 	<select id="selectStudentInfo" resultType="com.yonge.cooleshow.biz.dal.vo.CourseHomeworkVo">
         select
         cssp.user_id_ as studentId
-        ,s.name_ as subjectName
         ,su.username_ as studentName
         ,su.avatar_ as studentAvatar
-        from course_schedule_student_payment cssp
-        left join course_group cg on cssp.course_group_id_ = cg.id_
-        left join subject s on s.id_ = cg.subject_id_
+        from course_schedule cs
+        left join  course_schedule_student_payment cssp on cssp.course_id_ = cs.id_
         left join sys_user su on cssp.user_id_ = su.id_
         <where>
             <if test="records != null and records.size() != 0">
-                and cssp.course_id_ in
+                and cs.id_ in
                 <foreach collection="records" separator="," close=")" open="(" item="item" >
                     #{item.courseId}
                 </foreach>
             </if>
         </where>
         <if test="records != null and records.size() != 0">
-            order by field(cssp.course_id_,
+            order by field(cs.id_,
             <foreach collection="records" separator="," close=")" open="" item="item" >
                 #{item.courseId}
             </foreach>