aeon_business_back/data-center-business-dao/src/main/resources/mappers/ex/LevelMapperExt.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.techsor.datacenter.business.dao.ex.LevelMapperExt">
    
    <!-- 根据levelType选择对应的表名 -->
    <sql id="selectTable">
        <choose>
            <when test="levelType == 1">dashboard_level_branch</when>
            <when test="levelType == 2">dashboard_level_store</when>
            <when test="levelType == 3">dashboard_level_area</when>
            <when test="levelType == 4">dashboard_level_site</when>
        </choose>
    </sql>

    <sql id="selectParentTable">
        <choose>
            <when test="levelType == 2">dashboard_level_branch</when>
            <when test="levelType == 3">dashboard_level_store</when>
            <when test="levelType == 4">dashboard_level_area</when>
        </choose>
    </sql>
    
    <!-- 检查级别名称是否存在 -->
    <select id="checkExist" resultType="java.lang.Long">
        SELECT
            COUNT(1)
        FROM
        <include refid="selectTable" />
        WHERE `flag` = 0 AND name = #{levelName} AND company_id = #{companyId}
        <if test="id != null">
            AND id != #{id}
        </if>

    </select>

    <select id="countParentLevel" resultType="java.lang.Long">
        SELECT
            COUNT(1)
        FROM
        <include refid="selectParentTable" />
        WHERE `flag` = 0 AND company_id = #{companyId}
        AND id IN <foreach collection="parentIdList" item="item" open="(" separator="," close=")">#{item}</foreach>
    </select>

    <!-- 保存级别信息到对应表 -->
    <insert id="saveLevel" useGeneratedKeys="true" keyProperty="id" keyColumn="id">
        INSERT INTO
        <include refid="selectTable" />
        (company_id, name, remark, created_by, created_at)
        VALUES
        (#{companyId}, #{name}, #{remark}, #{createdBy}, #{createdAt})
    </insert>

    <!-- 保存级别信息到对应表 -->
    <insert id="saveLevelRelation">
        INSERT INTO
            ${tableName}
        (${parentField}, ${childField}, created_by, created_at)
        VALUES
        (#{parentId}, #{childId}, #{createdBy}, #{createdAt})
    </insert>

    <delete id="deleteLevelRelation">
        delete from ${tableName} WHERE ${childField} = #{childId}
    </delete>

    <!-- 更新级别信息到对应表 -->
    <update id="updateLevel">
        UPDATE
            <include refid="selectTable" />
        SET
            name = #{name},
            remark = #{remark},
            updated_at = #{updatedAt},
            updated_by = #{updatedBy}
        WHERE id = #{id}
    </update>

    <select id="checkIfReferencedByChildren" resultType="java.lang.Long">
        SELECT
            COUNT(1)
        FROM
            ${param.tableName}
        WHERE ${param.parentField} IN <foreach collection="idList" item="item" open="(" separator="," close=")">#{item}</foreach>
    </select>

    <update id="deleteLevelByIdList">
        UPDATE
            ${tableName}
        SET
            `flag` = 1
        WHERE id IN <foreach collection="idList" item="item" open="(" separator="," close=")">#{item}</foreach>
    </update>

    <delete id="deleteLevelRelationByIdList">
        delete from ${param.tableName}
        WHERE ${param.childField}
        IN <foreach collection="idList" item="item" open="(" separator="," close=")">#{item}</foreach>
    </delete>

    <sql id="commonField">
        base.`id`,
        base.company_id,
        base.`name` AS levelName,
        base.remark,
        base.created_by,
        base.created_at,
        base.updated_by,
        base.updated_at
    </sql>

    <sql id="commonWhere">
        base.flag =0
        <if test="idList != null and idList.size() > 0">
            AND base.`id` IN <foreach collection="idList" item="item" open="(" separator="," close=")">#{item}</foreach>
        </if>
        <if test="levelName != null and levelName != ''">
            AND base.`name` like CONCAT('%',#{levelName},'%')
        </if>
        <if test="parentIdList != null and parentIdList.size() > 0">
            AND pa.id IN <foreach collection="parentIdList" item="item" open="(" separator="," close=")">#{item}</foreach>
        </if>
    </sql>

    <!-- 分页查询级别列表 -->
    <select id="getListPage" resultType="com.techsor.datacenter.business.vo.level.LevelPageDTO">
        <choose>
            <when test="levelType == 1">
                SELECT
                    1 AS levelType,
                    <include refid="commonField" />
                FROM
                    dashboard_level_branch base
                WHERE
                    <include refid="commonWhere" />
            </when>
            <when test="levelType == 2">
                SELECT
                    2 AS levelType,
                    GROUP_CONCAT(pa.id) AS parentIds,
                    GROUP_CONCAT(pa.`name`) AS parentNames,
                    <include refid="commonField" />
                FROM
                    dashboard_level_store base
                LEFT JOIN dashboard_level_relation_branch_store rela ON base.`id` = rela.store_id
                LEFT JOIN dashboard_level_branch pa ON rela.branch_id = pa.`id`
                WHERE
                <include refid="commonWhere" />
                GROUP BY base.`id`
            </when>
            <when test="levelType == 3">
                SELECT
                    3 AS levelType,
                    GROUP_CONCAT(pa.id) AS parentIds,
                    GROUP_CONCAT(pa.`name`) AS parentNames,
                    <include refid="commonField" />
                FROM
                    dashboard_level_area base
                LEFT JOIN dashboard_level_relation_store_area rela ON base.`id` = rela.area_id
                LEFT JOIN dashboard_level_store pa ON rela.store_id = pa.`id`
                WHERE
                <include refid="commonWhere" />
                GROUP BY base.`id`
            </when>
            <when test="levelType == 4">
                SELECT
                    4 AS levelType,
                    GROUP_CONCAT(pa.id) AS parentIds,
                    GROUP_CONCAT(pa.`name`) AS parentNames,
                    <include refid="commonField" />
                FROM
                    dashboard_level_site base
                LEFT JOIN dashboard_level_relation_area_site rela ON base.`id` = rela.site_id
                LEFT JOIN dashboard_level_area pa ON rela.area_id = pa.`id`
                WHERE
                <include refid="commonWhere" />
                GROUP BY base.`id`
            </when>
        </choose>
        order BY base.`id` desc
    </select>

</mapper>