不是bug太敏感了，代码还原

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

@@ -2402,7 +2402,7 @@
                 LEFT JOIN course_schedule_student_payment cssp ON cssp.course_schedule_id_ = cs.id_
                 LEFT JOIN student_attendance sa ON sa.course_schedule_id_ = cs.id_ AND cssp.user_id_ = sa.user_id_
             </if>
-            <if test="searchType != 'NO_ATTENDANCE'">
+            <if test="searchType != 'ERR_ATTENDANCE'">
                 LEFT JOIN student_attendance sa ON sa.course_schedule_id_ = cs.id_
             </if>
             <include refid="endFindCourseSchedulesCondition"/>
@@ -3679,5 +3679,23 @@
         </foreach>
     </select>
 
+    <select id="getMusicGroupHasStartCourseNum" resultType="integer">
+        SELECT COUNT(*) FROM course_schedule
+        WHERE music_group_id_ = #{musicGroupId}
+        AND group_type_='MUSIC'
+        AND status_ IN ('UNDERWAY','OVER')
+    </select>
+
+    <select id="getMusicGroupsHasStartCourseNum" resultMap="CourseSchedule">
+        SELECT music_group_id_, COUNT(*) student_num_ FROM course_schedule
+        WHERE music_group_id_ IN
+        <foreach collection="ids" item="id" open="(" close=")" separator=",">
+            #{id}
+        </foreach>
+        AND group_type_='MUSIC'
+        AND status_ IN ('UNDERWAY','OVER')
+        GROUP BY music_group_id_
+    </select>
+
 
 </mapper>