guardia-mall/backend/target/classes/mapper/ReviewMapper.xml

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "https://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.zioinfo.mall.review.mapper.ReviewMapper">
<select id="findByProduct" resultType="com.zioinfo.mall.review.MallReview">
SELECT * FROM mall_review WHERE product_id = #{productId} ORDER BY id DESC LIMIT #{limit}
</select>
<select id="findById" resultType="com.zioinfo.mall.review.MallReview">SELECT * FROM mall_review WHERE id = #{id}</select>
<insert id="insert" parameterType="com.zioinfo.mall.review.MallReview" useGeneratedKeys="true" keyProperty="id">
INSERT INTO mall_review (product_id, order_id, author, rating, title, content, image_url, store_id, helpful_count)
VALUES (#{productId}, #{orderId}, #{author}, #{rating}, #{title}, #{content}, #{imageUrl}, #{storeId}, 0)
</insert>
<delete id="delete">DELETE FROM mall_review WHERE id = #{id} AND author = #{author}</delete>
<update id="incHelpful">UPDATE mall_review SET helpful_count = COALESCE(helpful_count,0) + 1 WHERE id = #{id}</update>
<select id="stats" resultType="java.util.Map">
SELECT COALESCE(ROUND(AVG(rating)::numeric,2),0) AS avg, COUNT(*) AS cnt FROM mall_review WHERE product_id = #{productId}
</select>
<update id="applyStats">
UPDATE mall_product SET
rating_avg = (SELECT COALESCE(ROUND(AVG(rating)::numeric,2),0) FROM mall_review WHERE product_id = #{productId}),
review_count = (SELECT COUNT(*) FROM mall_review WHERE product_id = #{productId})
WHERE id = #{productId}
</update>
<select id="recentContents" resultType="string">
SELECT content FROM mall_review WHERE product_id = #{productId} AND content IS NOT NULL ORDER BY id DESC LIMIT #{limit}
</select>
</mapper>