1、添加教务老师字段

2、布置作业

mec-biz/src/main/resources/config/mybatis/CourseHomeworkMapper.xml

@@ -183,7 +183,7 @@
 			cg.total_class_times_,
 			cg.current_class_times_,
 			cg.music_group_id_,
-			mg.name_ music_group_name_
+			IF(cs.group_type_='MUSIC',mg.name_,NULL) music_group_name_
 		FROM
 			course_homework ch
 			LEFT JOIN course_schedule cs ON ch.course_schedule_id_=cs.id_

mec-biz/src/main/resources/config/mybatis/StudentCourseHomeworkMapper.xml

@@ -168,7 +168,7 @@
         SELECT
             sch.id_,
             ch.*,
-            mg.name_ music_group_name_,
+            IF(cs.group_type_='MUSIC',mg.name_,NULL) music_group_name_,
             cg.name_ class_group_name_,
             CONCAT( class_date_, ' ', start_class_time_ ) start_class_time_,
             ch.expiry_date_,