huayang/backend/ruoyi-system/target/classes/mapper/system/HuayangNewsMapper.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.system.mapper.HuayangNewsMapper">

    <resultMap type="com.ruoyi.system.domain.HuayangNews" id="HuayangNewsResult">
        <result property="newsId"       column="news_id"       />
        <result property="newsTitle"     column="news_title"     />
        <result property="newsContent"   column="news_content"   />
        <result property="newsType"      column="news_type"      />
        <result property="newsCover"     column="news_cover"     />
        <result property="newsAuthor"    column="news_author"    />
        <result property="publishTime"   column="publish_time"   />
        <result property="readCount"     column="read_count"     />
        <result property="sortOrder"     column="sort_order"     />
        <result property="status"        column="status"          />
        <result property="isHome"        column="is_home"         />
        <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="selectHuayangNewsVo">
        SELECT news_id, news_title, news_content, news_type, news_cover,
               news_author, publish_time, read_count, sort_order, status, is_home,
               create_by, create_time, update_by, update_time, remark
        FROM huayang_news
    </sql>

    <select id="selectHuayangNewsList" parameterType="com.ruoyi.system.domain.HuayangNews" resultMap="HuayangNewsResult">
        <include refid="selectHuayangNewsVo"/>
        <where>
            <if test="newsTitle != null and newsTitle != ''">
                AND news_title LIKE CONCAT('%', #{newsTitle}, '%')
            </if>
            <if test="newsType != null and newsType != ''">
                AND news_type = #{newsType}
            </if>
            <if test="status != null and status != ''">
                AND status = #{status}
            </if>
            <if test="isHome != null and isHome != ''">
                AND is_home = #{isHome}
            </if>
        </where>
        ORDER BY sort_order ASC, news_id DESC
    </select>

    <select id="selectHuayangNewsById" parameterType="Long" resultMap="HuayangNewsResult">
        <include refid="selectHuayangNewsVo"/>
        WHERE news_id = #{newsId}
    </select>

    <select id="selectNewsForHome" resultMap="HuayangNewsResult">
        <include refid="selectHuayangNewsVo"/>
        WHERE status = '0'
        <if test="newsType != null and newsType != ''">
            AND news_type = #{newsType}
        </if>
        ORDER BY sort_order ASC, publish_time DESC
        <choose>
            <when test="offset != null and limit != null and limit > 0">
                LIMIT #{offset}, #{limit}
            </when>
            <when test="limit != null and limit > 0">
                LIMIT #{limit}
            </when>
        </choose>
    </select>

    <select id="countNewsPublic" resultType="long">
        SELECT COUNT(*) FROM huayang_news
        WHERE status = '0'
        <if test="newsType != null and newsType != ''">
            AND news_type = #{newsType}
        </if>
    </select>

    <insert id="insertHuayangNews" parameterType="com.ruoyi.system.domain.HuayangNews" useGeneratedKeys="true" keyProperty="newsId">
        INSERT INTO huayang_news
        <trim prefix="(" suffix=")" suffixOverrides=",">
            <if test="newsTitle != null and newsTitle != ''">news_title,</if>
            <if test="newsContent != null">news_content,</if>
            <if test="newsType != null and newsType != ''">news_type,</if>
            <if test="newsCover != null">news_cover,</if>
            <if test="newsAuthor != null">news_author,</if>
            <if test="publishTime != null">publish_time,</if>
            <if test="readCount != null">read_count,</if>
            <if test="sortOrder != null">sort_order,</if>
            <if test="status != null">status,</if>
            <if test="isHome != null">is_home,</if>
            <if test="createBy != null">create_by,</if>
            <if test="createTime != null">create_time,</if>
            <if test="remark != null">remark,</if>
        </trim>
        <trim prefix="values (" suffix=")" suffixOverrides=",">
            <if test="newsTitle != null and newsTitle != ''">#{newsTitle},</if>
            <if test="newsContent != null">#{newsContent},</if>
            <if test="newsType != null and newsType != ''">#{newsType},</if>
            <if test="newsCover != null">#{newsCover},</if>
            <if test="newsAuthor != null">#{newsAuthor},</if>
            <if test="publishTime != null">#{publishTime},</if>
            <if test="readCount != null">#{readCount},</if>
            <if test="sortOrder != null">#{sortOrder},</if>
            <if test="status != null">#{status},</if>
            <if test="isHome != null">#{isHome},</if>
            <if test="createBy != null">#{createBy},</if>
            <if test="createTime != null">#{createTime},</if>
            <if test="remark != null">#{remark},</if>
        </trim>
    </insert>

    <update id="updateHuayangNews" parameterType="com.ruoyi.system.domain.HuayangNews">
        UPDATE huayang_news
        <trim prefix="SET" suffixOverrides=",">
            <if test="newsTitle != null and newsTitle != ''">news_title = #{newsTitle},</if>
            <if test="newsContent != null">news_content = #{newsContent},</if>
            <if test="newsType != null and newsType != ''">news_type = #{newsType},</if>
            <if test="newsCover != null">news_cover = #{newsCover},</if>
            <if test="newsAuthor != null">news_author = #{newsAuthor},</if>
            <if test="publishTime != null">publish_time = #{publishTime},</if>
            <if test="readCount != null">read_count = #{readCount},</if>
            <if test="sortOrder != null">sort_order = #{sortOrder},</if>
            <if test="status != null">status = #{status},</if>
            <if test="isHome != null">is_home = #{isHome},</if>
            <if test="updateBy != null">update_by = #{updateBy},</if>
            <if test="updateTime != null">update_time = #{updateTime},</if>
            <if test="remark != null">remark = #{remark},</if>
        </trim>
        WHERE news_id = #{newsId}
    </update>

    <delete id="deleteHuayangNewsById" parameterType="Long">
        DELETE FROM huayang_news WHERE news_id = #{newsId}
    </delete>

    <delete id="deleteHuayangNewsByIds" parameterType="Long">
        DELETE FROM huayang_news WHERE news_id IN
        <foreach item="newsId" collection="array" open="(" separator="," close=")">
            #{newsId}
        </foreach>
    </delete>

    <update id="incrementReadCount" parameterType="Long">
        UPDATE huayang_news SET read_count = read_count + 1 WHERE news_id = #{newsId}
    </update>

</mapper>