daxueshengzaixianzufangpingtai/src/main/resources/mapper/ForumDao.xml

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<?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.dao.ForumDao">

    <!-- 通用查询结果列 -->
    <sql id="Base_Column_List">
        a.id as id
        ,a.forum_name as forumName
        ,a.yonghu_id as yonghuId
        ,a.fangdong_id as fangdongId
        ,a.users_id as usersId
        ,a.forum_content as forumContent
        ,a.super_ids as superIds
        ,a.forum_state_types as forumStateTypes
        ,a.insert_time as insertTime
        ,a.update_time as updateTime
        ,a.create_time as createTime
    </sql>
    <select id="selectListView" parameterType="map" resultType="com.entity.view.ForumView" >
        SELECT
        <include refid="Base_Column_List" />
        <!-- 级联表的字段 -->
        ,fangdong.fangdong_uuid_number as fangdongUuidNumber
        ,fangdong.fangdong_name as fangdongName
        ,fangdong.fangdong_phone as fangdongPhone
        ,fangdong.fangdong_id_number as fangdongIdNumber
        ,fangdong.fangdong_photo as fangdongPhoto
        ,fangdong.fangdong_email as fangdongEmail
        ,fangdong.new_money as newMoney
        ,yonghu.yonghu_uuid_number as yonghuUuidNumber
        ,yonghu.yonghu_name as yonghuName
        ,yonghu.yonghu_phone as yonghuPhone
        ,yonghu.yonghu_id_number as yonghuIdNumber
        ,yonghu.yonghu_photo as yonghuPhoto
        ,yonghu.yonghu_email as yonghuEmail
        ,yonghu.new_money as newMoney
        ,users.username as uusername
        ,users.password as upassword
        ,users.role as urole
        ,users.addtime as uaddtime

        FROM forum  a
        left JOIN fangdong fangdong ON a.fangdong_id = fangdong.id
        left JOIN yonghu yonghu ON a.yonghu_id = yonghu.id
        left JOIN users users ON a.users_id = users.id

        <where>
            <if test="params.ids != null">
                and a.id in
                <foreach item="item" index="index" collection="params.ids" open="(" separator="," close=")">
                #{item}
                </foreach>
            </if>
            <if test=" params.forumName != '' and params.forumName != null and params.forumName != 'null' ">
                and a.forum_name like CONCAT('%',#{params.forumName},'%')
            </if>
            <if test="params.yonghuId != null and params.yonghuId != ''">
                and (
                    a.yonghu_id = #{params.yonghuId}
                )