minio

community-8073/src/main/resources/mapper/CommentMapper.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.ivmiku.tutorial.mapper.CommentMapper">
+
+    <resultMap id="BaseResultMap" type="com.ivmiku.tutorial.entity.Comment">
+        <id property="commentId" column="comment_id" jdbcType="BIGINT"/>
+        <result property="userOpenid" column="user_openid" jdbcType="VARCHAR"/>
+        <result property="postId" column="post_id" jdbcType="BIGINT"/>
+        <result property="content" column="content" jdbcType="VARCHAR"/>
+        <result property="parentCommentId" column="parent_comment_id" jdbcType="BIGINT"/>
+        <result property="isDeleted" column="is_deleted" jdbcType="TINYINT"/>
+        <result property="createdAt" column="created_at" jdbcType="TIMESTAMP"/>
+        <result property="updatedAt" column="updated_at" jdbcType="TIMESTAMP"/>
+        <result property="mentionedUserId" column="mentioned_user_id" jdbcType="VARCHAR"/> <!-- 新增字段 -->
+        <result column="image_urls" property="imageUrls" />
+        <result column="video_url" property="videoUrl" />
+    </resultMap>
+
+    <sql id="Base_Column_List">
+        comment_id, user_openid, post_id, content,
+        parent_comment_id, is_deleted, created_at, updated_at,
+        mentioned_user_id, image_urls, video_url
+    </sql>
+
+    <!-- 查询指定帖子的所有评论 -->
+    <select id="selectCommentsByPostId" resultMap="BaseResultMap">
+        SELECT
+        <include refid="Base_Column_List"/>
+        FROM comment
+        WHERE post_id = #{postId} AND is_deleted = 0
+    </select>
+
+    <!-- 查询指定评论的所有回复 -->
+    <select id="selectRepliesByCommentId" resultMap="BaseResultMap">
+        SELECT
+        <include refid="Base_Column_List"/>
+        FROM comment
+        WHERE parent_comment_id = #{commentId} AND is_deleted = 0
+    </select>
+
+    <!-- 插入新的评论 -->
+    <insert id="insertComment" parameterType="com.ivmiku.tutorial.entity.Comment">
+        INSERT INTO comment (
+            user_openid, post_id, content, parent_comment_id,
+            is_deleted, created_at, updated_at, mentioned_user_id
+        ) VALUES (
+                     #{userOpenid}, #{postId}, #{content}, #{parentCommentId},
+                     #{isDeleted}, #{createdAt}, #{updatedAt}, #{mentionedUserId}, #{imageUrls}, #{videoUrl}
+                 )
+    </insert>
+
+    <!-- 更新评论 -->
+    <update id="updateComment" parameterType="com.ivmiku.tutorial.entity.Comment">
+        UPDATE comment
+        SET
+            user_openid = #{userOpenid},
+            post_id = #{postId},
+            content = #{content},
+            parent_comment_id = #{parentCommentId},
+            is_deleted = #{isDeleted},
+            created_at = #{createdAt},
+            updated_at = #{updatedAt},
+            mentioned_user_id = #{mentionedUserId},
+            image_urls = #{imageUrls},
+            video_url = #{videoUrl}
+        WHERE comment_id = #{commentId}
+    </update>
+
+    <!-- 删除评论，实际上是将is_deleted字段设置为1 -->
+    <update id="deleteComment">
+        UPDATE comment
+        SET is_deleted = 1, updated_at = CURRENT_TIMESTAMP
+        WHERE comment_id = #{commentId}
+    </update>
+</mapper>