ebike-plus/ebike-operations/src/main/resources/mapper/EbikeRegionMapper.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.cdzy.operations.mapper.EbikeRegionMapper">

    <!-- 查询车辆是否在指定运营区内 -->
    <select id="checkBikeInRegion" resultType="boolean">
        SELECT
            ST_Contains(
                    r.region_polygon::geometry,
                    ST_SetSRID(ST_MakePoint(ST_X(b.location), ST_Y(b.location)), 4326)
            ) as in_region
        FROM
            ebike_bike_info b
                INNER JOIN
            ebike_region r ON b.region_id = r.region_id
        WHERE
            b.bike_code = #{bikeCode}
    </select>

    <select id="findAllRegionsOrderByDistance" resultType="com.cdzy.operations.model.entity.EbikeRegion">
        SELECT
            ebike_region.*,
            ST_Distance (  region_polygon::geometry, ST_SetSRID ( ST_MakePoint ( #{lng}, #{lat}), 4326 ) :: geography ) AS distance_meters,
            ST_Contains ( ST_SetSRID(region_polygon::geometry, 4326), ST_SetSRID ( ST_MakePoint ( #{lng}, #{lat}), 4326 ) ) AS is_within_region
        FROM
            ebike_region
        WHERE
            is_deleted IS NOT TRUE
        ORDER BY
            is_within_region DESC,
            distance_meters
    </select>

    <resultMap id="FeignEbikeSiteVoMap" type="com.ebike.feign.model.vo.FeignEbikeSiteVo">
        <id property="siteId" column="site_id"/>
        <result property="siteName" column="site_name"/>
        <result property="operatorId" column="site_operator_id"/>
        <result property="regionId" column="site_region_id"/>
        <result property="sitePolygon" column="site_polygon" typeHandler="com.cdzy.operations.handler.PolygonTypeHandler"/>
        <result property="siteType" column="site_type"/>
        <result property="isDeleted" column="site_is_deleted"/>
    </resultMap>

    <resultMap id="FeignEbikeRegionVoMap" type="com.ebike.feign.model.vo.FeignEbikeRegionVo">
        <id property="regionId" column="region_id"/>
        <result property="operatorId" column="operator_id"/>
        <result property="regionName" column="region_name"/>
        <result property="regionSimpleName" column="region_simple_name"/>
        <result property="regionPolygon" column="region_polygon" typeHandler="com.cdzy.operations.handler.PolygonTypeHandler"/>
        <result property="siteNum" column="site_num"/>
        <result property="status" column="status"/>

        <collection property="ebikeSiteVos"
                    ofType="com.ebike.feign.model.vo.FeignEbikeSiteVo"
                    resultMap="FeignEbikeSiteVoMap"/>
    </resultMap>

    <select id="findCurrentRegion" resultMap="FeignEbikeRegionVoMap">
        WITH nearest_region_in_radius AS (
            -- 先获取半径范围内的区域
            SELECT
                r.*,
                ST_Distance(
                        ST_SetSRID(r.region_polygon::geometry, 4326)::geography,
                        ST_SetSRID(ST_MakePoint(#{point.x}, #{point.y}), 4326)::geography
                ) AS distance_meters,
                ST_Contains(
                        ST_SetSRID(r.region_polygon::geometry, 4326),
                        ST_SetSRID(ST_MakePoint(#{point.x}, #{point.y}), 4326)
                ) AS is_within_region
            FROM ebike_region r
            WHERE r.is_deleted IS NOT TRUE
              AND r.status = 1
              AND ST_DWithin(
                    ST_SetSRID(r.region_polygon::geometry, 4326)::geography,
                    ST_SetSRID(ST_MakePoint(#{point.x}, #{point.y}), 4326)::geography,
                    #{radius}
                  )
            ORDER BY is_within_region DESC, distance_meters
            LIMIT 1
            ),
            nearest_region_overall AS (
        -- 如果没有半径范围内的，获取所有区域中最近的
        SELECT
            r.*,
            ST_Distance(
            ST_SetSRID(r.region_polygon::geometry, 4326)::geography,
            ST_SetSRID(ST_MakePoint(#{point.x}, #{point.y}), 4326)::geography
            ) AS distance_meters,
            ST_Contains(
            ST_SetSRID(r.region_polygon::geometry, 4326),
            ST_SetSRID(ST_MakePoint(#{point.x}, #{point.y}), 4326)
            ) AS is_within_region
        FROM ebike_region r
        WHERE r.is_deleted IS NOT TRUE
          AND r.status = 1
        ORDER BY is_within_region DESC, distance_meters
            LIMIT 1
            ),
            final_region AS (
        SELECT * FROM nearest_region_in_radius
        UNION ALL
        SELECT * FROM nearest_region_overall
        WHERE NOT EXISTS (SELECT 1 FROM nearest_region_in_radius)
            LIMIT 1
            )
        SELECT
            fr.region_id,
            fr.operator_id,
            fr.region_name,
            fr.region_simple_name,
            fr.region_polygon,
            fr.site_num,
            fr.status,
            fr.distance_meters,
            fr.is_within_region,
            s.site_id,
            s.site_name,
            s.operator_id AS site_operator_id,
            s.region_id AS site_region_id,
            s.site_polygon,
            s.site_type,
            s.is_deleted AS site_is_deleted
        FROM final_region fr
                 LEFT JOIN ebike_site s ON fr.region_id = s.region_id
            AND s.is_deleted IS NOT TRUE
            AND s.site_type = 1
    </select>

    <select id="findCurrentPointRegion" resultType="com.cdzy.operations.model.entity.EbikeRegion">
        SELECT *
        FROM ebike_region
        WHERE is_deleted IS NOT TRUE
          AND ST_Contains(
                ST_SetSRID(region_polygon::geometry, 4326),
                ST_SetSRID(ST_MakePoint(#{x}, #{y}), 4326)
              )
            LIMIT 1
    </select>
</mapper>