FrameTour-BE/src/main/resources/mapper/VideoReviewMapper.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.ycwl.basic.mapper.VideoReviewMapper">

    <!-- 结果映射 -->
    <resultMap id="VideoReviewRespMap" type="com.ycwl.basic.model.pc.videoreview.dto.VideoReviewRespDTO">
        <id property="id" column="id"/>
        <result property="videoId" column="video_id"/>
        <result property="videoUrl" column="video_url"/>
        <result property="templateId" column="template_id"/>
        <result property="templateName" column="template_name"/>
        <result property="scenicId" column="scenic_id"/>
        <result property="scenicName" column="scenic_name"/>
        <result property="creator" column="creator"/>
        <result property="creatorName" column="creator_name"/>
        <result property="rating" column="rating"/>
        <result property="content" column="content"/>
        <result property="cameraPositionRating" column="camera_position_rating"
                typeHandler="com.ycwl.basic.handler.NestedMapTypeHandler"/>
        <result property="createTime" column="create_time"/>
        <result property="updateTime" column="update_time"/>
    </resultMap>

    <!-- 分页查询评价列表 -->
    <select id="selectReviewList" parameterType="com.ycwl.basic.model.pc.videoreview.dto.VideoReviewListReqDTO"
            resultMap="VideoReviewRespMap">
        SELECT
            vr.id,
            vr.video_id,
            vr.scenic_id,
            vr.creator,
            vr.rating,
            vr.content,
            vr.camera_position_rating,
            vr.create_time,
            vr.update_time,
            v.video_url,
            v.template_id,
            t.name AS template_name,
            s.name AS scenic_name,
            u.name AS creator_name
        FROM video_review vr
        LEFT JOIN video v ON vr.video_id = v.id
        LEFT JOIN template t ON v.template_id = t.id
        LEFT JOIN scenic s ON vr.scenic_id = s.id
        LEFT JOIN admin_user u ON vr.creator = u.id
        <where>
            <if test="videoId != null">
                AND vr.video_id = #{videoId}
            </if>
            <if test="scenicId != null">
                AND vr.scenic_id = #{scenicId}
            </if>
            <if test="creator != null">
                AND vr.creator = #{creator}
            </if>
            <if test="rating != null">
                AND vr.rating = #{rating}
            </if>
            <if test="minRating != null">
                AND vr.rating &gt;= #{minRating}
            </if>
            <if test="maxRating != null">
                AND vr.rating &lt;= #{maxRating}
            </if>
            <if test="startTime != null and startTime != ''">
                AND vr.create_time &gt;= #{startTime}
            </if>
            <if test="endTime != null and endTime != ''">
                AND vr.create_time &lt;= #{endTime}
            </if>
            <if test="keyword != null and keyword != ''">
                AND vr.content LIKE CONCAT('%', #{keyword}, '%')
            </if>
        </where>
        ORDER BY
        <choose>
            <when test="orderBy == 'rating'">
                vr.rating
            </when>
            <when test="orderBy == 'update_time'">
                vr.update_time
            </when>
            <otherwise>
                vr.create_time
            </otherwise>
        </choose>
        <choose>
            <when test="orderDirection == 'ASC'">
                ASC
            </when>
            <otherwise>
                DESC
            </otherwise>
        </choose>
    </select>

    <!-- 统计总评价数 -->
    <select id="countTotal" resultType="java.lang.Long">
        SELECT COUNT(*) FROM video_review
    </select>

    <!-- 计算平均评分 -->
    <select id="calculateAverageRating" resultType="java.lang.Double">
        SELECT AVG(rating) FROM video_review
    </select>

    <!-- 统计评分分布 -->
    <select id="countRatingDistribution" resultType="java.util.Map">
        SELECT
            rating AS ratingValue,
            COUNT(*) AS count
        FROM video_review
        GROUP BY rating
        ORDER BY rating
    </select>

    <!-- 统计最近N天的评价趋势 -->
    <select id="countRecentTrend" resultType="java.util.Map">
        SELECT
            DATE_FORMAT(create_time, '%Y-%m-%d') AS dateStr,
            COUNT(*) AS count
        FROM video_review
        WHERE create_time &gt;= DATE_SUB(CURDATE(), INTERVAL #{days} DAY)
        GROUP BY DATE_FORMAT(create_time, '%Y-%m-%d')
        ORDER BY dateStr
    </select>

    <!-- 统计景区评价排行 -->
    <select id="countScenicRank" resultType="com.ycwl.basic.model.pc.videoreview.dto.VideoReviewStatisticsRespDTO$ScenicReviewRank">
        SELECT
            vr.scenic_id AS scenicId,
            s.name AS scenicName,
            COUNT(*) AS reviewCount,
            AVG(vr.rating) AS averageRating
        FROM video_review vr
        LEFT JOIN scenic s ON vr.scenic_id = s.id
        GROUP BY vr.scenic_id, s.name
        ORDER BY reviewCount DESC, averageRating DESC
        LIMIT #{limit}
    </select>

    <!-- 查询所有机位评价数据 -->
    <select id="selectAllCameraPositionRatings" resultType="java.util.Map">
        SELECT camera_position_rating
        FROM video_review
        WHERE camera_position_rating IS NOT NULL AND camera_position_rating != ''
    </select>

</mapper>