Herding_Hub/chenhai-system/src/main/resources/mapper/system/PostsMapper.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.chenhai.system.mapper.PostsMapper">
    
    <resultMap type="Posts" id="PostsResult">
        <result property="postId"    column="post_id"    />
        <result property="authorId"    column="author_id"    />
        <result property="postType"    column="post_type"    />
        <result property="title"    column="title"    />
        <result property="content"    column="content"    />
        <result property="category"    column="category"    />
        <result property="images"    column="images"    />
        <result property="videoUrl"    column="video_url"    />
        <result property="status"    column="status"    />
        <result property="isSensitive"    column="is_sensitive"    />
        <result property="sensitiveWords"    column="sensitive_words"    />
        <result property="auditRemark"    column="audit_remark"    />
        <result property="viewCount"    column="view_count"    />
        <result property="publishedAt"    column="published_at"    />
        <result property="lastReplyAt"    column="last_reply_at"    />
        <result property="createdAt"    column="created_at"    />
        <result property="updatedAt"    column="updated_at"    />
    </resultMap>

    <sql id="selectPostsVo">
        select post_id, author_id, post_type, title, content, category, images, video_url, status, is_sensitive, sensitive_words, audit_remark, view_count, published_at, last_reply_at, created_at, updated_at from posts
    </sql>

    <select id="selectPostsList" parameterType="Posts" resultMap="PostsResult">
        <include refid="selectPostsVo"/>
        <where>  
            <if test="authorId != null "> and author_id = #{authorId}</if>
            <if test="postType != null  and postType != ''"> and post_type = #{postType}</if>
            <if test="title != null  and title != ''"> and title = #{title}</if>
            <if test="content != null  and content != ''"> and content = #{content}</if>
            <if test="category != null  and category != ''"> and category = #{category}</if>
            <if test="images != null  and images != ''"> and images = #{images}</if>
            <if test="videoUrl != null  and videoUrl != ''"> and video_url = #{videoUrl}</if>
            <if test="status != null  and status != ''"> and status = #{status}</if>
            <if test="isSensitive != null "> and is_sensitive = #{isSensitive}</if>
            <if test="sensitiveWords != null  and sensitiveWords != ''"> and sensitive_words = #{sensitiveWords}</if>
            <if test="auditRemark != null  and auditRemark != ''"> and audit_remark = #{auditRemark}</if>
            <if test="viewCount != null "> and view_count = #{viewCount}</if>
            <if test="publishedAt != null "> and published_at = #{publishedAt}</if>
            <if test="lastReplyAt != null "> and last_reply_at = #{lastReplyAt}</if>
            <if test="createdAt != null "> and created_at = #{createdAt}</if>
            <if test="updatedAt != null "> and updated_at = #{updatedAt}</if>
        </where>
    </select>
    
    <select id="selectPostsByPostId" parameterType="Long" resultMap="PostsResult">
        <include refid="selectPostsVo"/>
        where post_id = #{postId}
    </select>

    <insert id="insertPosts" parameterType="Posts" useGeneratedKeys="true" keyProperty="postId">
        insert into posts
        <trim prefix="(" suffix=")" suffixOverrides=",">
            <if test="authorId != null">author_id,</if>
            <if test="postType != null and postType != ''">post_type,</if>
            <if test="title != null and title != ''">title,</if>
            <if test="content != null and content != ''">content,</if>
            <if test="category != null">category,</if>
            <if test="images != null">images,</if>
            <if test="videoUrl != null">video_url,</if>
            <if test="status != null">status,</if>
            <if test="isSensitive != null">is_sensitive,</if>
            <if test="sensitiveWords != null">sensitive_words,</if>
            <if test="auditRemark != null">audit_remark,</if>
            <if test="viewCount != null">view_count,</if>
            <if test="publishedAt != null">published_at,</if>
            <if test="lastReplyAt != null">last_reply_at,</if>
            <if test="createdAt != null">created_at,</if>
            <if test="updatedAt != null">updated_at,</if>
         </trim>
        <trim prefix="values (" suffix=")" suffixOverrides=",">
            <if test="authorId != null">#{authorId},</if>
            <if test="postType != null and postType != ''">#{postType},</if>
            <if test="title != null and title != ''">#{title},</if>
            <if test="content != null and content != ''">#{content},</if>
            <if test="category != null">#{category},</if>
            <if test="images != null">#{images},</if>
            <if test="videoUrl != null">#{videoUrl},</if>
            <if test="status != null">#{status},</if>
            <if test="isSensitive != null">#{isSensitive},</if>
            <if test="sensitiveWords != null">#{sensitiveWords},</if>
            <if test="auditRemark != null">#{auditRemark},</if>
            <if test="viewCount != null">#{viewCount},</if>
            <if test="publishedAt != null">#{publishedAt},</if>
            <if test="lastReplyAt != null">#{lastReplyAt},</if>
            <if test="createdAt != null">#{createdAt},</if>
            <if test="updatedAt != null">#{updatedAt},</if>
         </trim>
    </insert>

    <update id="updatePosts" parameterType="Posts">
        update posts
        <trim prefix="SET" suffixOverrides=",">
            <if test="authorId != null">author_id = #{authorId},</if>
            <if test="postType != null and postType != ''">post_type = #{postType},</if>
            <if test="title != null and title != ''">title = #{title},</if>
            <if test="content != null and content != ''">content = #{content},</if>
            <if test="category != null">category = #{category},</if>
            <if test="images != null">images = #{images},</if>
            <if test="videoUrl != null">video_url = #{videoUrl},</if>
            <if test="status != null">status = #{status},</if>
            <if test="isSensitive != null">is_sensitive = #{isSensitive},</if>
            <if test="sensitiveWords != null">sensitive_words = #{sensitiveWords},</if>
            <if test="auditRemark != null">audit_remark = #{auditRemark},</if>
            <if test="viewCount != null">view_count = #{viewCount},</if>
            <if test="publishedAt != null">published_at = #{publishedAt},</if>
            <if test="lastReplyAt != null">last_reply_at = #{lastReplyAt},</if>
            <if test="createdAt != null">created_at = #{createdAt},</if>
            <if test="updatedAt != null">updated_at = #{updatedAt},</if>
        </trim>
        where post_id = #{postId}
    </update>

    <delete id="deletePostsByPostId" parameterType="Long">
        delete from posts where post_id = #{postId}
    </delete>

    <delete id="deletePostsByPostIds" parameterType="String">
        delete from posts where post_id in 
        <foreach item="postId" collection="array" open="(" separator="," close=")">
            #{postId}
        </foreach>
    </delete>
</mapper>