<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE mapper
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PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.ard.system.mapper.SysNoticeReadMapper">
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<resultMap type="SysNoticeRead" id="SysNoticeReadResult">
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<id property="readId" column="read_id" />
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<result property="noticeId" column="notice_id" />
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<result property="userId" column="user_id" />
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<result property="readTime" column="read_time" />
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</resultMap>
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<!-- 新增已读记录 -->
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<insert id="insertNoticeRead" parameterType="SysNoticeRead">
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insert ignore into sys_notice_read (notice_id, user_id, read_time)
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values (#{noticeId}, #{userId}, sysdate())
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</insert>
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<!-- 查询未读数量：正常状态公告 减去 当前用户已读数 -->
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<select id="selectUnreadCount" resultType="int">
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select count(*) from sys_notice n
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where n.status = '0' and not exists (select 1 from sys_notice_read r where r.notice_id = n.notice_id and r.user_id = #{userId})
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</select>
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<!-- 查询是否已读 -->
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<select id="selectIsRead" resultType="int">
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select count(*) from sys_notice_read where notice_id = #{noticeId} and user_id = #{userId}
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</select>
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<!-- 查询带已读状态的公告列表（直接在SQL中限制条数） -->
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<select id="selectNoticeListWithReadStatus" resultType="SysNotice">
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select
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n.notice_id as noticeId,
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n.notice_title as noticeTitle,
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n.notice_type as noticeType,
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n.status,
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n.create_by as createBy,
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n.create_time as createTime,
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case when r.notice_id is not null then true else false end as isRead
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from sys_notice n
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left join sys_notice_read r
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on r.notice_id = n.notice_id and r.user_id = #{userId}
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where n.status = '0'
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order by n.notice_id desc
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limit #{limit}
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</select>
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<!-- 批量标记已读 -->
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<insert id="insertNoticeReadBatch">
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insert ignore into sys_notice_read (notice_id, user_id, read_time)
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values
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<foreach collection="noticeIds" item="noticeId" separator=",">
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(#{noticeId}, #{userId}, sysdate())
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</foreach>
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</insert>
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<!-- 删除公告时清理已读记录 -->
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<delete id="deleteByNoticeIds">
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delete from sys_notice_read where notice_id in
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<foreach collection="noticeIds" item="noticeId" open="(" separator="," close=")">
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#{noticeId}
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</foreach>
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</delete>
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<!-- 查询已阅读某公告的用户列表，支持按登录名/用户名模糊筛选 -->
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<select id="selectReadUsersByNoticeId" resultType="java.util.Map">
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select
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u.user_id as userId,
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u.user_name as userName,
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u.nick_name as nickName,
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d.dept_name as deptName,
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u.phonenumber as phonenumber,
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r.read_time as readTime
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from sys_notice_read r
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inner join sys_user u on u.user_id = r.user_id and u.del_flag = '0'
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left join sys_dept d on d.dept_id = u.dept_id
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where r.notice_id = #{noticeId}
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<if test="searchValue != null and searchValue != ''">
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and (
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u.user_name like concat('%', #{searchValue}, '%')
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or u.nick_name like concat('%', #{searchValue}, '%')
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)
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</if>
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order by r.read_time desc
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</select>
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</mapper>
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