forked from iVMiku/guidance-backend
118 lines
5.0 KiB
XML
118 lines
5.0 KiB
XML
<?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.ivmiku.tutorial.mapper.PostMapper">
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<resultMap id="BaseResultMap" type="com.ivmiku.tutorial.entity.Post">
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<id property="postId" column="post_id" jdbcType="BIGINT"/>
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<result property="userOpenid" column="user_openid" jdbcType="VARCHAR"/>
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<result property="communityId" column="community_id" jdbcType="BIGINT"/>
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<result property="title" column="title" jdbcType="VARCHAR"/>
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<result property="content" column="content" jdbcType="VARCHAR"/>
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<result property="videoUrl" column="video_url" jdbcType="VARCHAR"/>
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<result property="imageUrls" column="image_urls" jdbcType="VARCHAR"/>
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<result property="isDeleted" column="is_deleted" jdbcType="TINYINT"/>
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<result property="isOfficial" column="is_official" jdbcType="TINYINT"/>
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<result property="isPublic" column="is_public" jdbcType="TINYINT"/>
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<result property="location" column="location" jdbcType="VARCHAR"/>
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<result property="isDraft" column="is_draft" jdbcType="TINYINT"/>
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<result property="createdAt" column="created_at" jdbcType="TIMESTAMP"/>
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<result property="updatedAt" column="updated_at" jdbcType="TIMESTAMP"/>
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</resultMap>
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<sql id="Base_Column_List">
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post_id, user_openid, community_id, title, content,
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video_url, image_urls,
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is_deleted, is_official, is_public, location, created_at, updated_at
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</sql>
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<!-- 查询指定帖子的所有评论 -->
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<select id="selectCommentsByPostId" resultMap="BaseResultMap">
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SELECT
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<include refid="Base_Column_List"/>
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FROM post
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WHERE post_id = #{postId} AND is_deleted = 0
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</select>
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<!-- 插入新的帖子 -->
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<insert id="insertPost" parameterType="com.ivmiku.tutorial.entity.Post">
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INSERT INTO post (
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post_id, user_openid, community_id, title, content,
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video_url, image_urls,
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is_deleted, is_official, is_public, location, is_draft, created_at, updated_at
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) VALUES (
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#{postId}, #{userOpenid}, #{communityId}, #{title}, #{content},
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#{videoUrl}, #{imageUrls},
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#{isDeleted}, #{isOfficial}, #{isPublic}, #{location}, #{isDraft}, #{createdAt}, #{updatedAt}
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)
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</insert>
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<!-- 更新帖子 -->
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<update id="updatePost" parameterType="com.ivmiku.tutorial.entity.Post">
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UPDATE post
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SET
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user_openid = #{userOpenid},
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community_id = #{communityId},
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title = #{title},
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content = #{content},
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video_url = #{videoUrl},
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image_urls = #{imageUrls},
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is_deleted = #{isDeleted},
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is_official = #{isOfficial},
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is_public = #{isPublic},
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location = #{location},
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is_draft = #{isDraft},
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created_at = #{createdAt},
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updated_at = #{updatedAt}
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WHERE post_id = #{postId}
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</update>
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<!-- 删除帖子，实际上是将is_deleted字段设置为1 -->
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<update id="deletePost">
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UPDATE post
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SET is_deleted = 1, updated_at = CURRENT_TIMESTAMP
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WHERE post_id = #{postId}
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</update>
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<select id="getTagPostList" resultType="com.ivmiku.tutorial.entity.Post">
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SELECT p.post_id, p.user_openid, p.community_id, p.title, p.content,
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p.is_deleted, p.is_official, p.is_public, p.location, p.created_at, p.updated_at
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FROM post p, posttag pt, tag t
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WHERE p.post_id = pt.post_id AND pt.tag_id = t.tag_id AND t.tag_id = #{tagId} AND p.is_deleted = 0 AND p.is_public = 1
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</select>
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<select id="selectPopularSearches" resultType="java.lang.String">
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SELECT title
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FROM post
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WHERE is_deleted = 0 AND is_public = 1
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LIMIT 9
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</select>
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<select id="searchPosts" resultType="com.ivmiku.tutorial.entity.Post">
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SELECT
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<include refid="Base_Column_List"/>
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FROM post
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WHERE is_deleted = 0
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AND is_public = 1
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AND (title LIKE CONCAT('%', #{keyword}, '%')
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OR content LIKE CONCAT('%', #{keyword}, '%'))
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</select>
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<select id="getTopFavoritedPosts" resultType="com.ivmiku.tutorial.entity.Post">
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SELECT p.post_id, p.user_openid, p.community_id, p.title, p.content,
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p.is_deleted, p.is_official, p.is_public, p.location, p.created_at, p.updated_at
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FROM post p
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JOIN favorite f ON p.post_id = f.post_id
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WHERE p.is_deleted = 0 AND p.is_public = 1 AND f.is_deleted = 0
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GROUP BY p.post_id
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ORDER BY COUNT(f.id) DESC
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LIMIT #{limit}
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</select>
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<select id="getPostsBasedOnHistoryAndHotness" resultType="com.ivmiku.tutorial.entity.Post">
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SELECT *
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FROM post
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WHERE content LIKE CONCAT('%', #{searchHistory}, '%')
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ORDER BY hotness DESC
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</select>
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</mapper>
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