feat/#152: 리뷰 목록 조회 시 답변 완료 여부 필드 추가

Author: JeongHyck06

src/main/java/com/example/nexus/app/review/dto/ReviewResponse.java

@@ -17,6 +17,8 @@ public class ReviewResponse {
     private String content;
     private LocalDateTime createdAt;
     private LocalDateTime updatedAt;
+    // 답변 완료 여부
+    private Boolean hasReply;
     // 작성자 정보 (내부 클래스로 구성)
     private WriterInfo writer;
 

src/main/java/com/example/nexus/app/review/repository/ReviewReplyRepository.java

@@ -32,5 +32,8 @@ public interface ReviewReplyRepository extends JpaRepository<ReviewReply, Long>
     Page<ReviewReply> findByCreatedByOrderByCreatedAtDesc(@Param("userId") Long userId, Pageable pageable);
 
     Long countByReviewId(Long reviewId);
+
+    @Query("SELECT rr.review.id, COUNT(rr) FROM ReviewReply rr WHERE rr.review.id IN :reviewIds GROUP BY rr.review.id")
+    List<Object[]> countByReviewIds(@Param("reviewIds") List<Long> reviewIds);
 }
 

src/main/java/com/example/nexus/app/review/service/ReviewService.java

@@ -104,10 +104,31 @@ public ReviewResponse getReview(Long reviewId) {
 
     @Transactional(readOnly = true)
     public List<ReviewResponse> getReviewsByPostId(Long postId) {
-        return reviewRepository
-                .findByPostId(postId)
-                .stream()
-                .map(this::toReviewResponse)
+        List<Review> reviews = reviewRepository.findByPostId(postId);
+        
+        List<Long> reviewIds = reviews.stream()
+                .map(Review::getId)
+                .collect(Collectors.toList());
+        
+        // 리뷰 ID별 답글 개수 Map 생성
+        java.util.Map<Long, Long> replyCountMap = java.util.Collections.emptyMap();
+        if (!reviewIds.isEmpty()) {
+            replyCountMap = reviewReplyRepository.countByReviewIds(reviewIds)
+                    .stream()
+                    .collect(Collectors.toMap(
+                            result -> ((Number) result[0]).longValue(),
+                            result -> ((Number) result[1]).longValue()
+                    ));
+        }
+        
+        final java.util.Map<Long, Long> finalReplyCountMap = replyCountMap;
+        
+        return reviews.stream()
+                .map(review -> {
+                    boolean hasReply = finalReplyCountMap.containsKey(review.getId()) 
+                            && finalReplyCountMap.get(review.getId()) > 0;
+                    return toReviewResponse(review, hasReply);
+                })
                 .collect(Collectors.toList());
     }
 
@@ -239,6 +260,10 @@ public ReviewStatusResponse getReviewStatus(Long userId, Long postId) {
     }
 
     private ReviewResponse toReviewResponse(Review review) {
+        return toReviewResponse(review, false);
+    }
+
+    private ReviewResponse toReviewResponse(Review review, boolean hasReply) {
         User createdBy = review.getCreatedBy();
 
         return ReviewResponse.builder()
@@ -248,6 +273,7 @@ private ReviewResponse toReviewResponse(Review review) {
                 .content(review.getContent())
                 .createdAt(review.getCreatedAt())
                 .updatedAt(review.getUpdatedAt())
+                .hasReply(hasReply)
                 .writer(ReviewResponse.WriterInfo.builder()
                         .id(createdBy.getId())
                         .nickname(createdBy.getNickname() != null ? createdBy.getNickname() : "")