tasteby/backend-java/src/main/resources/mybatis/mapper/ReviewMapper.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.tasteby.mapper.ReviewMapper">

    <resultMap id="reviewResultMap" type="com.tasteby.domain.Review">
        <id property="id" column="id"/>
        <result property="userId" column="user_id"/>
        <result property="restaurantId" column="restaurant_id"/>
        <result property="rating" column="rating"/>
        <result property="reviewText" column="review_text" typeHandler="com.tasteby.config.ClobTypeHandler"/>
        <result property="visitedAt" column="visited_at"/>
        <result property="createdAt" column="created_at"/>
        <result property="updatedAt" column="updated_at"/>
        <result property="userNickname" column="nickname"/>
        <result property="userAvatarUrl" column="avatar_url"/>
        <result property="restaurantName" column="restaurant_name"/>
    </resultMap>

    <resultMap id="restaurantResultMap" type="com.tasteby.domain.Restaurant">
        <id property="id" column="id"/>
        <result property="name" column="name"/>
        <result property="address" column="address"/>
        <result property="region" column="region"/>
        <result property="latitude" column="latitude"/>
        <result property="longitude" column="longitude"/>
        <result property="cuisineType" column="cuisine_type"/>
        <result property="priceRange" column="price_range"/>
        <result property="googlePlaceId" column="google_place_id"/>
        <result property="businessStatus" column="business_status"/>
        <result property="rating" column="rating"/>
        <result property="ratingCount" column="rating_count"/>
        <result property="updatedAt" column="created_at"/>
    </resultMap>

    <insert id="insertReview">
        INSERT INTO user_reviews (id, user_id, restaurant_id, rating, review_text, visited_at)
        VALUES (#{id}, #{userId}, #{restaurantId}, #{rating}, #{reviewText},
                <choose>
                    <when test="visitedAt != null">TO_DATE(#{visitedAt}, 'YYYY-MM-DD')</when>
                    <otherwise>NULL</otherwise>
                </choose>)
    </insert>

    <update id="updateReview">
        UPDATE user_reviews SET
            rating = COALESCE(#{rating}, rating),
            review_text = COALESCE(#{reviewText}, review_text),
            visited_at = COALESCE(
                <choose>
                    <when test="visitedAt != null">TO_DATE(#{visitedAt}, 'YYYY-MM-DD')</when>
                    <otherwise>NULL</otherwise>
                </choose>, visited_at),
            updated_at = SYSTIMESTAMP
        WHERE id = #{id} AND user_id = #{userId}
    </update>

    <delete id="deleteReview">
        DELETE FROM user_reviews WHERE id = #{id} AND user_id = #{userId}
    </delete>

    <select id="findById" resultMap="reviewResultMap">
        SELECT r.id, r.user_id, r.restaurant_id, r.rating, r.review_text,
               r.visited_at, r.created_at, r.updated_at,
               u.nickname, u.avatar_url
        FROM user_reviews r
        JOIN tasteby_users u ON u.id = r.user_id
        WHERE r.id = #{id}
    </select>

    <select id="findByRestaurant" resultMap="reviewResultMap">
        SELECT r.id, r.user_id, r.restaurant_id, r.rating, r.review_text,
               r.visited_at, r.created_at, r.updated_at,
               u.nickname, u.avatar_url
        FROM user_reviews r
        JOIN tasteby_users u ON u.id = r.user_id
        WHERE r.restaurant_id = #{restaurantId}
        ORDER BY r.created_at DESC
        OFFSET #{offset} ROWS FETCH NEXT #{limit} ROWS ONLY
    </select>

    <select id="getAvgRating" resultType="map">
        <!-- #294 — review 0건이면 AVG는 NULL → 클라이언트 NaN 처리 부담. NVL로 0.0 보장. -->
        SELECT NVL(ROUND(AVG(rating), 1), 0) AS avg_rating, COUNT(*) AS review_count
        FROM user_reviews
        WHERE restaurant_id = #{restaurantId}
    </select>

    <select id="findByUser" resultMap="reviewResultMap">
        SELECT r.id, r.user_id, r.restaurant_id, r.rating, r.review_text,
               r.visited_at, r.created_at, r.updated_at,
               u.nickname, u.avatar_url,
               rest.name AS restaurant_name
        FROM user_reviews r
        JOIN tasteby_users u ON u.id = r.user_id
        LEFT JOIN restaurants rest ON rest.id = r.restaurant_id
        WHERE r.user_id = #{userId}
        ORDER BY r.created_at DESC
        OFFSET #{offset} ROWS FETCH NEXT #{limit} ROWS ONLY
    </select>

    <select id="countFavorite" resultType="int">
        SELECT COUNT(*) FROM user_favorites
        WHERE user_id = #{userId} AND restaurant_id = #{restaurantId}
    </select>

    <insert id="insertFavorite">
        INSERT INTO user_favorites (id, user_id, restaurant_id)
        VALUES (#{id}, #{userId}, #{restaurantId})
    </insert>

    <delete id="deleteFavorite">
        DELETE FROM user_favorites
        WHERE user_id = #{userId} AND restaurant_id = #{restaurantId}
    </delete>

    <select id="findFavoriteId" resultType="string">
        SELECT id FROM user_favorites
        WHERE user_id = #{userId} AND restaurant_id = #{restaurantId}
    </select>

    <select id="getUserFavorites" resultMap="restaurantResultMap">
        SELECT r.id, r.name, r.address, r.region, r.latitude, r.longitude,
               r.cuisine_type, r.price_range, r.google_place_id,
               r.business_status, r.rating, r.rating_count, f.created_at
        FROM user_favorites f
        JOIN restaurants r ON r.id = f.restaurant_id
        WHERE f.user_id = #{userId}
        ORDER BY f.created_at DESC
    </select>

</mapper>