update

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

@@ -526,10 +526,10 @@
     <sql id="queryMusicGroupCourseScheduleSql">
         <where>
                 cg.del_flag_ = 0
-            <if test="classScheduleType != null and classScheduleType != ''">
+            <if test="classScheduleType != null">
                 AND cs.type_ = #{classScheduleType}
             </if>
-            <if test="classScheduleStatus != null and classScheduleStatus != ''">
+            <if test="classScheduleStatus != null">
                 AND cs.status_ = #{classScheduleStatus}
             </if>
             <if test="startTime != null and startTime != ''">

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

@@ -175,7 +175,7 @@
     </select>
     
     <select id="findByTeacherAttendanceInfo" resultMap="TeacherAttendance">
-        SELECT * FROM teacher_attendance WHERE teacher_id_=#{teacherId} AND course_schedule_id_=#{courseScheduleId}
+        SELECT * FROM teacher_attendance WHERE teacher_id_=#{teacherId} AND course_schedule_id_=#{courseScheduleId} LIMIT 1
     </select>
 
     <resultMap id="TeacherAbnormalAttendanceInfoDto" type="com.ym.mec.biz.dal.dto.TeacherAbnormalAttendanceInfoDto">