Feat: 상품 목록 조회 필드 추가

src/main/java/com/uhdyl/backend/product/dto/response/ProductListResponse.java

@@ -11,10 +11,12 @@ public record ProductListResponse(
         String sellerPicture,
         String mainImageUrl,
         boolean isCompleted,
-        Long zzimCount
-) {
+        Long zzimCount,
+        Double sellerRating,
+        Long reviewsCount
+        ) {
     @QueryProjection
-    public ProductListResponse(Long id, String title, Long price, String sellerName, String sellerPicture, String mainImageUrl, boolean isCompleted, Long zzimCount) {
+    public ProductListResponse(Long id, String title, Long price, String sellerName, String sellerPicture, String mainImageUrl, boolean isCompleted, Long zzimCount, Double sellerRating, Long reviewsCount) {
         this.id = id;
         this.title = title;
         this.price = price;
@@ -23,5 +25,7 @@ public ProductListResponse(Long id, String title, Long price, String sellerName,
         this.mainImageUrl = mainImageUrl;
         this.isCompleted = isCompleted;
         this.zzimCount = zzimCount;
+        this.sellerRating = sellerRating;
+        this.reviewsCount = reviewsCount;
     }
 }

src/main/java/com/uhdyl/backend/product/repository/CustomProductRepositoryImpl.java

@@ -205,6 +205,7 @@ public GlobalPageResponse<ProductListResponse> getAllProducts(Pageable pageable)
         QImage image = QImage.image;
         QUser user = QUser.user;
         QZzim zzim = QZzim.zzim;
+        QReview review = QReview.review;
 
         PathBuilder<Product> entityPath = new PathBuilder<>(Product.class, "product");
 
@@ -219,8 +220,15 @@ public GlobalPageResponse<ProductListResponse> getAllProducts(Pageable pageable)
                         user.picture.coalesce(""),
                         image.imageUrl,
                         product.isSale.not(),
-                        zzim.id.count()
-
+                        zzim.id.count(),
+                        JPAExpressions
+                                .select(review.rating.avg().coalesce(0.0))
+                                .from(review)
+                                .where(review.targetUserId.eq(user.id).and(review.productId.eq(product.id))),
+                        JPAExpressions
+                                .select(review.count())
+                                .from(review)
+                                .where(review.targetUserId.eq(product.user.id).and(review.productId.eq(product.id)))
                 ))
                 .from(product)
                 .leftJoin(product.images, image).on(image.imageOrder.eq(0L))

src/main/java/com/uhdyl/backend/review/domain/Review.java

@@ -22,7 +22,7 @@ public class Review extends BaseEntity {
 
     private String publicId;
 
-    private Long rating;
+    private Double rating;
 
     @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "user_id")
@@ -33,7 +33,7 @@ public class Review extends BaseEntity {
     private Long productId;
 
     @Builder
-    public Review(User user, String content, String imageUrl, String publicId, Long rating, Long targetUserId, Long productId) {
+    public Review(User user, String content, String imageUrl, String publicId, Double rating, Long targetUserId, Long productId) {
         this.user = user;
         this.content = content;
         this.imageUrl = imageUrl;

src/main/java/com/uhdyl/backend/review/dto/request/ReviewCreateRequest.java

@@ -2,7 +2,7 @@
 
 public record ReviewCreateRequest (
         String content,
-        Long rating,
+        Double rating,
         String imageUrl,
         String publicId,
         Long productId

src/main/java/com/uhdyl/backend/review/dto/response/ReviewResponse.java

@@ -4,11 +4,10 @@
 
 import java.time.LocalDateTime;
 
-// TODO: 상품 도메인 개발 후 상품의 제목도 함께 전달하기
 public record ReviewResponse(
         Long Id,
         String content,
-        Long rating,
+        Double rating,
         String nickName,
         String imageUrl,
         String title,