add 添加获取学生维修技师接口

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

@@ -240,10 +240,10 @@
     </select>
 
     <select id="getStudentMusicGroupRepairer" resultMap="com.ym.mec.biz.dal.dao.MusicGroupDao.BasicUserDto">
-        SELECT su.real_name_ username_, su.id_ user_id_, su.avatar_ head_url_
+        SELECT repairer.real_name_ username_, repairer.id_ user_id_, repairer.avatar_ head_url_
         FROM music_group mg
                  LEFT JOIN student_registration sr on sr.music_group_id_ = mg.id_
-                 LEFT JOIN sys_user su ON su.id_ = sr.user_id_
+                 LEFT JOIN sys_user repairer ON repairer.id_ = mg.repair_user_id_
         WHERE sr.user_id_ = #{studentId}
           AND mg.status_ = 'PROGRESS'
           AND mg.repair_user_id_ IS NOT NULL