electripper/electripper-system/src/main/resources/mapper/system/EtCouponMapper.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.ruoyi.system.mapper.EtCouponMapper">

    <resultMap type="EtCoupon" id="EtCouponResult">
        <result property="couponId"    column="coupon_id"    />
        <result property="type"    column="type"    />
        <result property="discountPercent"    column="discount_percent"    />
        <result property="areaId"    column="area_id"    />
        <result property="userId"    column="user_id"    />
        <result property="discountAmount"    column="discount_amount"    />
        <result property="createTime"    column="create_time"    />
        <result property="validityValue"    column="validity_value"    />
        <result property="validityUnit"    column="validity_unit"    />
        <result property="status"    column="status"    />
        <result property="limitNum"    column="limit_num"    />
        <result property="desc"    column="desc"    />
        <result property="snackPrice"    column="snack_price"    />
    </resultMap>

    <sql id="selectEtCouponVo">
        select coupon_id, type, discount_percent, area_id, user_id, discount_amount, create_time, validity_value, validity_unit, status, limit_num, `desc`, snack_price from et_coupon
    </sql>

    <select id="selectEtCouponList" parameterType="EtCoupon" resultMap="EtCouponResult">
        SELECT
            c.coupon_id,
            c.type,
            c.discount_percent,
            c.area_id,
            a.area_name areaName,
            c.user_id,
            u.user_name userName,
            c.discount_amount,
            c.create_time,
            c.validity_value,
            c.validity_unit,
            c.status,
            c.limit_num,
            c.desc,
            c.snack_price
        FROM
        et_coupon c
        left join et_operating_area a on a.area_id = c.area_id
        left join et_user u on u.user_id = c.user_id
        <where>
            <if test="type != null  and type != ''"> and c.type = #{type}</if>
            <if test="discountPercent != null "> and c.discount_percent = #{discountPercent}</if>
            <if test="areaId != null "> and c.area_id = #{areaId}</if>
            <if test="areaName != null "> and a.area_name like concat('%', #{areaName}, '%')</if>
            <if test="userId != null "> and c.user_id = like concat('%', #{userId}, '%')</if>
            <if test="userName != null "> and u.user_name = #{userName}</if>
            <if test="discountAmount != null "> and c.discount_amount = #{discountAmount}</if>
            <if test="status != null  and status != ''"> and c.status = #{status}</if>
            <if test="limitNum != null  and limitNum != ''"> and c.limit_num = #{limitNum}</if>
        </where>
    </select>

    <select id="selectEtCouponByCouponId" parameterType="Long" resultMap="EtCouponResult">
        <include refid="selectEtCouponVo"/>
        where coupon_id = #{couponId}
    </select>

    <insert id="insertEtCoupon" parameterType="EtCoupon" useGeneratedKeys="true" keyProperty="couponId">
        insert into et_coupon
        <trim prefix="(" suffix=")" suffixOverrides=",">
            <if test="type != null">type,</if>
            <if test="discountPercent != null">discount_percent,</if>
            <if test="areaId != null">area_id,</if>
            <if test="userId != null">user_id,</if>
            <if test="discountAmount != null">discount_amount,</if>
            <if test="createTime != null">create_time,</if>
            <if test="validityValue != null">validity_value,</if>
            <if test="validityUnit != null">validity_unit,</if>
            <if test="status != null">status,</if>
            <if test="limitNum != null">limit_num,</if>
            <if test="desc != null">desc,</if>
            <if test="snackPrice != null">snack_price,</if>
         </trim>
        <trim prefix="values (" suffix=")" suffixOverrides=",">
            <if test="type != null">#{type},</if>
            <if test="discountPercent != null">#{discountPercent},</if>
            <if test="areaId != null">#{areaId},</if>
            <if test="userId != null">#{userId},</if>
            <if test="discountAmount != null">#{discountAmount},</if>
            <if test="createTime != null">#{createTime},</if>
            <if test="validityValue != null">#{validityValue},</if>
            <if test="validityUnit != null">#{validityUnit},</if>
            <if test="status != null">#{status},</if>
            <if test="limitNum != null">#{limitNum},</if>
            <if test="desc != null">#{desc},</if>
            <if test="snackPrice != null">#{snackPrice},</if>
         </trim>
    </insert>

    <update id="updateEtCoupon" parameterType="EtCoupon">
        update et_coupon
        <trim prefix="SET" suffixOverrides=",">
            <if test="type != null">type = #{type},</if>
            <if test="discountPercent != null">discount_percent = #{discountPercent},</if>
            <if test="areaId != null">area_id = #{areaId},</if>
            <if test="userId != null">user_id = #{userId},</if>
            <if test="discountAmount != null">discount_amount = #{discountAmount},</if>
            <if test="createTime != null">create_time = #{createTime},</if>
            <if test="validityValue != null">validity_value = #{validityValue},</if>
            <if test="validityUnit != null">validity_unit = #{validityUnit},</if>
            <if test="status != null">status = #{status},</if>
            <if test="limitNum != null">limit_num = #{limitNum},</if>
            <if test="desc != null">desc = #{desc},</if>
            <if test="snackPrice != null">snack_price = #{snackPrice},</if>
        </trim>
        where coupon_id = #{couponId}
    </update>

    <delete id="deleteEtCouponByCouponId" parameterType="Long">
        delete from et_coupon where coupon_id = #{couponId}
    </delete>

    <delete id="deleteEtCouponByCouponIds" parameterType="String">
        delete from et_coupon where coupon_id in
        <foreach item="couponId" collection="array" open="(" separator="," close=")">
            #{couponId}
        </foreach>
    </delete>
</mapper>