backend_code/src/main/resources/mapper/template/SmartAttendanceMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.template.mapper.SmartAttendanceMapper">

    <select id="getGroup" resultType="java.lang.Integer">
        SELECT
            `status`
        FROM
            `smart_attendance`
        GROUP BY
            `status`
    </select>

    <select id="askForLeavePage" resultType="com.template.model.vo.AskForLeaveVo">
        SELECT
            sa.id,
            su.head_image as image,
            sa.xw_user_name,
            su.card_no,
            sa.start_time,
            sa.end_time,
            sa.reason,
            sa.if_verification,
            sa.initiate_time
        FROM
            `smart_attendance` sa
                LEFT JOIN smart_user su ON su.id = sa.user_id
        WHERE
        sa.`status` = 6
        AND sa.deleted = 0
        <if test="name != null and name != ''">
            and sa.xw_user_name = #{name}
        </if>
        <if test="cardNo != null and cardNo != ''">
            and su.card_no = #{cardNo}
        </if>
        <if test="startTime != null and startTime != '' and endTime != null and endTime != ''">
            and sa.initiate_time &gt;= #{startTime} and sa.initiate_time &lt;= #{endTime}
        </if>
        <if test="ifVerification != null and ifVerification != ''">
            and sa.if_verification = #{ifVerification}
        </if>
        <if test="classId != null and classId != ''">
            and sa.class_id = #{classId}
        </if>
        ORDER BY sa.initiate_time desc
    </select>

    <select id="queryPage" resultType="com.template.model.vo.SmartAttendanceVo">
        SELECT
            sa.id,
            sa.xw_user_name as name,
            sc.`name` as className,
            sg.`name` as gradeName,
            su.card_no as cardNo,
            su.head_image as headImage,
            sa.attend_time as attendTime,
            sa.initiate_time as initiateTime,
            sa.`status`
        FROM
            `smart_attendance` sa
                LEFT JOIN smart_class sc on sa.class_id=sc.id
                LEFT JOIN smart_grade sg on sc.grade_id=sg.id
                LEFT JOIN smart_user su on sa.user_id=su.id
        where sa.deleted = 0
        <if test="gradeId != null and gradeId != ''">
            and sc.grade_id=#{gradeId}
        </if>
        <if test="classId != null and classId != ''">
            and sa.class_id = #{classId}
        </if>
        <if test="status != null and status != ''">
            and sa.`status` = #{status}
        </if>
        <if test="studentNo != null and studentNo != ''">
            and su.card_no = #{studentNo}
        </if>
        <if test="name != null and name != ''">
            and sa.xw_user_name = #{name}
        </if>
        <if test="startTime != null and startTime != '' and endTime != null and endTime != ''">
            and sa.attend_time &gt;= #{startTime} and sa.attend_time &lt;= #{endTime}
        </if>
        ORDER BY sa.create_time desc
    </select>
</mapper>