1、修复由于签到记录不存在导致的签到界面异常

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

@@ -273,8 +273,8 @@
         LEFT JOIN music_group mg ON cg.music_group_id_=mg.id_
         LEFT JOIN school s ON cs.schoole_id_=s.id_
         LEFT JOIN sys_user su ON cs.actual_teacher_id_=su.id_
-        LEFT JOIN teacher_attendance ta ON cs.id_=ta.course_schedule_id_
-        WHERE cs.id_= #{courseID} AND ta.teacher_id_=#{teacherId}
+        LEFT JOIN teacher_attendance ta ON cs.id_=ta.course_schedule_id_ AND ta.teacher_id_=#{teacherId}
+        WHERE cs.id_= #{courseID} LIMIT 1
     </select>
 
     <select id="getTeacherCourseByDateSpeed"