ruoyi-admin/src/main/resources/mapper/post/PostCommentMapper.xml

<?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.ruoyi.web.controller.post.mapper.PostCommentMapper">
    
    <resultMap type="PostComment" id="PostCommentResult">
        <id     property="commentId"     column="comment_id"     />
        <result property="postId"        column="post_id"        />
        <result property="content"       column="content"        />
        <result property="userId"        column="user_id"        />
        <result property="userName"      column="user_name"      />
        <result property="userAvatar"    column="user_avatar"    />
        <result property="parentId"      column="parent_id"      />
        <result property="replyUserId"   column="reply_user_id"  />
        <result property="replyUserName" column="reply_user_name"/>
        <result property="status"        column="status"         />
        <result property="likes"         column="likes"          />
        <result property="createBy"      column="create_by"      />
        <result property="createTime"    column="create_time"    />
        <result property="updateBy"      column="update_by"      />
        <result property="updateTime"    column="update_time"    />
        <result property="remark"        column="remark"         />
    </resultMap>
    
    <sql id="selectPostCommentVo">
        select comment_id, post_id, content, user_id, user_name, user_avatar, parent_id, reply_user_id, reply_user_name, status, likes,
            create_by, create_time, update_by, update_time, remark
        from post_comment
    </sql>
    
    <select id="selectPostCommentList" parameterType="PostComment" resultMap="PostCommentResult">
        <include refid="selectPostCommentVo"/>
        <where>
            <if test="postId != null">
                AND post_id = #{postId}
            </if>
            <if test="userId != null">
                AND user_id = #{userId}
            </if>
            <if test="userName != null  and userName != ''">
                AND user_name like concat('%', #{userName}, '%')
            </if>
            <if test="parentId != null">
                AND parent_id = #{parentId}
            </if>
            <if test="status != null  and status != ''">
                AND status = #{status}
            </if>
        </where>
        order by create_time desc
    </select>
    
    <select id="selectPostCommentById" parameterType="Long" resultMap="PostCommentResult">
        <include refid="selectPostCommentVo"/>
        where comment_id = #{commentId}
    </select>
    
    <select id="selectCommentsByPostId" resultMap="PostCommentResult">
        <include refid="selectPostCommentVo"/>
        where post_id = #{postId} and parent_id = 0 and status = '1'
        order by create_time desc
        <if test="limit > 0">
            limit #{limit}
        </if>
    </select>
    
    <select id="selectCommentsByParentId" parameterType="Long" resultMap="PostCommentResult">
        <include refid="selectPostCommentVo"/>
        where parent_id = #{parentId} and status = '1'
        order by create_time asc
    </select>
    
    <insert id="insertPostComment" parameterType="PostComment" useGeneratedKeys="true" keyProperty="commentId">
        insert into post_comment (
            post_id,
            content,
            user_id,
            user_name,
            user_avatar,
            parent_id,
            reply_user_id,
            reply_user_name,
            status,
            likes,
            create_by,
            create_time,
            update_by,
            update_time,
            remark
        ) values (
            #{postId},
            #{content},
            #{userId},
            #{userName},
            #{userAvatar},
            #{parentId},
            #{replyUserId},
            #{replyUserName},
            #{status},
            #{likes},
            #{createBy},
            now(),
            #{updateBy},
            now(),
            #{remark}
        )
    </insert>
    
    <update id="updatePostComment" parameterType="PostComment">
        update post_comment
        <set>
            <if test="content != null and content != ''">content = #{content},</if>
            <if test="status != null and status != ''">status = #{status},</if>
            <if test="likes != null">likes = #{likes},</if>
            <if test="updateBy != null and updateBy != ''">update_by = #{updateBy},</if>
            update_time = now(),
            <if test="remark != null">remark = #{remark},</if>
        </set>
        where comment_id = #{commentId}
    </update>
    
    <delete id="deletePostCommentById" parameterType="Long">
        delete from post_comment where comment_id = #{commentId}
    </delete>
    
    <delete id="deletePostCommentByIds" parameterType="Long">
        delete from post_comment where comment_id in 
        <foreach collection="array" item="commentId" open="(" separator="," close=")">
            #{commentId}
        </foreach>
    </delete>
    
    <delete id="deletePostCommentByPostId" parameterType="Long">
        delete from post_comment where post_id = #{postId}
    </delete>
    
    <update id="updateCommentLikes" parameterType="PostComment">
        update post_comment set likes = likes + #{likes} where comment_id = #{commentId}
    </update>
    
</mapper>