<?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.jeesite.modules.java.dao.UserCouponDao">
    <!-- UserCoupon的resultMap,column是给数据库列起的别名,它对应property类的属性-->
    <resultMap id="result_UserCoupon_Map" type="com.jeesite.modules.java.entity.UserCoupon">
        <id column="id" property="id" />
        <result column="drawTime" property="drawTime" />
        <result column="couponStatus" property="couponStatus" />
        <result column="couponId" property="couponId" />
        <result column="userId" property="userId" />
    </resultMap>

    <!-- 数据库中表名为:user_coupon的列名,as前是数据库的列明,as后是列的别名用于映射成实体类中的属性,需要注意的是别名必须与resultMap中的column别名一致 -->
    <sql id="user_coupon_Column">
        user_coupon.id as id
        ,user_coupon.drawTime as drawTime
        ,user_coupon.couponStatus as couponStatus
        ,user_coupon.couponId as couponId
        ,user_coupon.userId as userId
    </sql>

    <!--获得类名为:UserCoupon对应的数据库表的数据总行数 -->
    <select id="getUserCouponRowCount" resultType="java.lang.Long">
        select count(id) from user_coupon
    </select>
    <!-- 获得类名为:UserCoupon对应数据库中表的数据集合 -->
    <select id="selectUserCoupon" resultMap="result_UserCoupon_Map">
        select 
        <include refid="user_coupon_Column" /> 
        from user_coupon
    </select> 

    <!-- 获得一个UserCoupon对象,以参数UserCoupon对象中不为空的属性作为条件进行查询-->
    <select id="selectUserCouponByObj" parameterType="com.jeesite.modules.java.entity.UserCoupon" resultMap="result_UserCoupon_Map">
        select 
            <include refid="user_coupon_Column" /> 
        from user_coupon
        <where>
            <if test="userId != null "> and user_coupon.userId = #{userId}</if>
            <if test="couponId != null "> and user_coupon.couponId = #{couponId}</if>
            <if test="couponStatus != null "> and user_coupon.couponStatus = #{couponStatus}</if>
            <if test="drawTime != null "> and user_coupon.drawTime = #{drawTime}</if>
            <if test="id != null "> and user_coupon.id = #{id}</if>
        </where>
    </select> 

    <!-- 通过UserCoupon的id获得对应数据库中表的数据对象-->
    <select id="selectUserCouponById" parameterType="java.lang.Long" resultMap="result_UserCoupon_Map">
        select 
            <include refid="user_coupon_Column" /> 
        from user_coupon
        where user_coupon.id = #{id}
    </select> 

    <!-- 将UserCoupon插入到对应数据库的表中,包括属性值为null的数据-->

    <insert id="insertUserCoupon" parameterType="com.jeesite.modules.java.entity.UserCoupon">
        insert into user_coupon(id,drawTime,couponStatus,couponId,userId) 
        values(#{id},#{drawTime},#{couponStatus},#{couponId},#{userId})
    </insert>

    <!-- 将UserCoupon中属性值不为null的数据,插入到对应数据库的表中-->
    <insert id="insertNonEmptyUserCoupon" parameterType="com.jeesite.modules.java.entity.UserCoupon">
        insert into user_coupon
        <trim prefix="(" suffix=")" suffixOverrides=",">
            <if test="id != null">id,</if>
            <if test="drawTime != null">drawTime,</if>
            <if test="couponStatus != null">couponStatus,</if>
            <if test="couponId != null">couponId,</if>
            <if test="userId != null">userId,</if>
        </trim>
        <trim prefix="values (" suffix=")" suffixOverrides=",">
            <if test="id != null"> #{id},</if>
            <if test="drawTime != null"> #{drawTime},</if>
            <if test="couponStatus != null"> #{couponStatus},</if>
            <if test="couponId != null"> #{couponId},</if>
            <if test="userId != null"> #{userId},</if>
        </trim>
    </insert>

    <!-- 将UserCoupon批量插入到对应数据库的表中-->
    <insert id="insertUserCouponByBatch" parameterType="java.util.ArrayList">
        insert into user_coupon(id,drawTime,couponStatus,couponId,userId) values
        <foreach collection="list" item="item" index="index" separator="," >
            (#{item.id},#{item.drawTime},#{item.couponStatus},#{item.couponId},#{item.userId})
        </foreach>
    </insert>

    <!-- 通过UserCoupon的id将数据库表中对应的数据删除-->
    <update id="deleteUserCouponById" parameterType="java.lang.Long">
         update user_coupon set
            couponStatus=-1
        where id=#{id}
    </update>

    <!-- 通过UserCoupon的id将UserCoupon的数据更新到数据库中对应的表,包括值null的数据-->
    <update id="updateUserCouponById" parameterType="com.jeesite.modules.java.entity.UserCoupon">
        update user_coupon set
            drawTime=#{drawTime}
            ,couponStatus=#{couponStatus}
            ,couponId=#{couponId}
            ,userId=#{userId}
        where id=#{id}
    </update>

    <!-- 通过UserCoupon的id将UserCoupon中属性值不为null的数据更新到数据库对应的表中-->
    <update id="updateNonEmptyUserCouponById" parameterType="com.jeesite.modules.java.entity.UserCoupon">
        update user_coupon
        <set>
            <if test="drawTime != null">
                drawTime=#{drawTime},
            </if>
            <if test="couponStatus != null">
                couponStatus=#{couponStatus},
            </if>
            <if test="couponId != null">
                couponId=#{couponId},
            </if>
            <if test="userId != null">
                userId=#{userId},
            </if>
        </set>
        where id=#{id}
    </update>

</mapper>