sweet-hut-service/home-service/src/main/resources/mapper/TravelMapper.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.cxx.home.dao.TravelDao">
    <resultMap id="travelSpotResultMap" type="com.cxx.home.dto.travel.TravelSpotDto">
        <id property="id" column="id"/>
        <result property="name" column="name"/>
        <result property="area" column="area"
                typeHandler="com.baomidou.mybatisplus.extension.handlers.JacksonTypeHandler"/>
        <result property="price" column="price"/>
        <result property="address" column="address"/>
        <result property="recommendRate" column="recommendRate"/>
        <result property="traffic" column="traffic"/>
        <result property="router" column="router"/>
        <result property="foods" column="foods"
                typeHandler="com.baomidou.mybatisplus.extension.handlers.JacksonTypeHandler"/>
        <result property="projects" column="projects"
                typeHandler="com.baomidou.mybatisplus.extension.handlers.JacksonTypeHandler"/>
        <result property="remark" column="remark"/>
        <collection property="recordList" ofType="com.cxx.home.dto.travel.TravelRecordDto"
                    column="id" select="queryTravelRecordById">
        </collection>
    </resultMap>

    <resultMap id="travelSummaryResultMap" type="com.cxx.home.dto.travel.TravelSummaryDto">
        <id property="id" column="id"/>
        <result property="name" column="name"/>
        <result property="area" column="area"
                typeHandler="com.baomidou.mybatisplus.extension.handlers.JacksonTypeHandler"/>
        <result property="recommendRate" column="recommendRate"/>
        <collection property="recordList" ofType="com.cxx.home.dto.travel.TravelRecordDto"
                    column="id" select="queryTravelRecordById">
        </collection>
    </resultMap>

    <resultMap id="travelRecordResultMap" type="com.cxx.home.dto.travel.TravelRecordDto">
        <id property="id" column="id"/>
        <result property="name" column="name"/>
        <result property="area" column="area"
                typeHandler="com.baomidou.mybatisplus.extension.handlers.JacksonTypeHandler"/>
        <result property="date" column="date"/>
        <result property="persons" column="persons"
                typeHandler="com.baomidou.mybatisplus.extension.handlers.JacksonTypeHandler"/>
        <collection property="imageList" ofType="java.lang.String"
                    column="id" select="queryRecordImage"/>
        <collection property="videoList" ofType="java.lang.String"
                    column="id" select="queryRecordVideo"/>
    </resultMap>

    <select id="queryRecordImage" resultType="java.lang.String">
        SELECT image_url AS imageUrl
        FROM travel_image
        WHERE record_id = #{id}
    </select>

    <select id="queryRecordVideo" resultType="java.lang.String">
        SELECT video_url AS videoUrl
        FROM travel_video
        WHERE record_id = #{id}
    </select>

    <select id="queryTravelRecordById" resultMap="travelRecordResultMap">
        SELECT id      AS id,
               date    AS date,
               persons AS persons
        FROM travel_record
        WHERE travel_id = #{id}
        ORDER BY date DESC
    </select>

    <select id="queryTravelRecord" resultMap="travelRecordResultMap">
        SELECT a.id      AS id,
               b.name    AS name,
               b.area    AS area,
               a.date    AS date,
               a.persons AS persons
        FROM travel_record AS a
                 LEFT JOIN travel_spot AS b ON a.travel_id = b.id
        WHERE a.date <![CDATA[ >=]]> STR_TO_DATE(#{startDate}, '%Y-%m-%d')
          AND a.date <![CDATA[ <=]]> STR_TO_DATE(#{endDate}, '%Y-%m-%d')
        ORDER BY date DESC
    </select>

    <select id="queryTravelSpot" resultMap="travelSpotResultMap">
        SELECT a.id             AS id,
               a.name           AS name,
               a.area           AS area,
               a.address        AS address,
               a.price          AS price,
               a.recommend_rate AS recommendRate,
               a.traffic        AS traffic,
               a.router         AS router,
               a.foods          AS foods,
               a.projects       AS projects,
               a.remark         AS remake
        FROM travel_spot a
        WHERE a.id = #{id}
    </select>

    <select id="queryTravelSummary" resultMap="travelSummaryResultMap">
        SELECT a.id AS id,
        a.name AS name,
        a.area AS area,
        a.recommend_rate AS recommendRate
        FROM travel_spot a
        <where>
            <if test="query.category != null and query.category != ''">
                a.city = #{query.category}
            </if>
        </where>
    </select>

    <select id="queryTravelStats" resultType="com.cxx.home.dto.travel.TravelStatsDto">
        SELECT COUNT(DISTINCT a.name) AS spotCount,
               COUNT(DISTINCT a.area) AS cityCount,
               COUNT(b.id)            AS recordCount
        FROM travel_spot a
                 LEFT JOIN travel_record b ON a.id = b.travel_id
    </select>

    <select id="queryTravelCategory" resultType="string">
        SELECT DISTINCT a.city AS city
        FROM travel_spot a
    </select>

    <insert id="insertTravelImage">
        INSERT INTO travel_image (record_id, image_url) VALUES
        <foreach collection="list" item="item" separator=",">
            (#{recordId}, #{item})
        </foreach>
    </insert>

    <insert id="insertTravelVideo">
        INSERT INTO travel_video (record_id, video_url) VALUES
        <foreach collection="list" item="item" separator=",">
            (#{recordId}, #{item})
        </foreach>
    </insert>
</mapper>