<?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.tanpu.community.dao.mapper.community.TopicFollowRelMapper">

    <!-- 通用查询映射结果 -->
    <sql id="Base_Column_List">
        id,
        topic_id,
        user_id,
        follow_time,
        unfollow_time,
        create_time,
        update_time,
        delete_tag
    </sql>
    <resultMap id="BaseResultMap" type="com.tanpu.community.dao.entity.community.TopicFollowRelEntity">
        <id column="id" property="id" />
        <result column="topic_id" property="topicId" />
        <result column="user_id" property="userId" />
        <result column="follow_time" property="followTime" />
        <result column="unfollow_time" property="unfollowTime" />
        <result column="create_time" property="createTime" />
        <result column="update_time" property="updateTime" />
        <result column="delete_tag" property="deleteTag" />
    </resultMap>

<!--auto generated by MybatisCodeHelper on 2022-02-17-->
    <select id="selectTopicIdByUserId" resultType="java.lang.String">
        select topic_id
        from topic_follow_rel
        where user_id=#{userId}
        and delete_tag = 0
    </select>

<!--auto generated by MybatisCodeHelper on 2022-02-17-->
    <select id="queryOneByTopicIdAndUserId" resultMap="BaseResultMap">
        select
        <include refid="Base_Column_List"/>
        from topic_follow_rel
        where topic_id=#{topicId} and user_id=#{userId} and delete_tag = 0
    </select>
</mapper>