🐛 Fix: Notification receiver 이슈 해결

Author: koojun99

src/main/java/treehouse/server/api/member/business/MemberMapper.java

@@ -25,7 +25,6 @@ public static Member toMember(User user, MemberRequestDTO.registerMember request
                 .bio(request.getBio())
                 .profileImageUrl(request.getProfileImageURL())
                 .treeHouse(treeHouse)
-                .notificationList(new ArrayList<>())
                 .commentList(new ArrayList<>())
                 .invitationList(new ArrayList<>())
                 .reactionList(new ArrayList<>())

src/main/java/treehouse/server/api/member/implementation/MemberQueryAdapter.java

@@ -1,6 +1,7 @@
 package treehouse.server.api.member.implementation;
 
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import treehouse.server.api.member.persistence.MemberRepository;
 import treehouse.server.global.annotations.Adapter;
 import treehouse.server.global.entity.User.User;
@@ -9,6 +10,7 @@
 import treehouse.server.global.exception.GlobalErrorCode;
 import treehouse.server.global.exception.ThrowClass.MemberException;
 
+@Slf4j
 @Adapter
 @RequiredArgsConstructor
 public class MemberQueryAdapter {
@@ -20,6 +22,7 @@ public Member getMember(User user){
     }
 
     public Member findByUserAndTreehouse(User user, TreeHouse treehouse) {
+        log.info("user: {}, treehouse: {}", user.getId(), treehouse.getId());
         return memberRepository.findByUserAndTreeHouse(user, treehouse).orElseThrow(() -> new MemberException(GlobalErrorCode.MEMBER_NOT_FOUND));
     }
 

src/main/java/treehouse/server/api/notification/business/NotificationMapper.java

@@ -16,7 +16,7 @@
 @NoArgsConstructor(access = AccessLevel.PRIVATE)
 public class NotificationMapper {
 
-    public static Notification toNotification(Member sender, Member receiver, NotificationRequestDTO.createNotification request, String reactionName) {
+    public static Notification toNotification(Member sender, User receiver, NotificationRequestDTO.createNotification request, String reactionName) {
 
         return Notification.builder()
                 .sender(sender)

src/main/java/treehouse/server/api/notification/business/NotificationService.java

@@ -30,6 +30,7 @@ public class NotificationService {
     private final NotificationQueryAdapter notificationQueryAdapter;
 
     private final MemberQueryAdapter memberQueryAdapter;
+    private final UserQueryAdapter userQueryAdapter;
 
     private final TreehouseQueryAdapter treehouseQueryAdapter;
 
@@ -45,10 +46,10 @@ public class NotificationService {
     public void createNotification(User user, Long treehouseId, NotificationRequestDTO.createNotification request, String reactionName) {
         TreeHouse treeHouse = treehouseQueryAdapter.getTreehouseById(treehouseId);
         Member sender = memberQueryAdapter.findByUserAndTreehouse(user, treeHouse);
-        Member receiver = memberQueryAdapter.findById(request.getReceiverId());
+        User receiver = userQueryAdapter.findById(request.getReceiverId());
         Notification notification = NotificationMapper.toNotification(sender, receiver, request, reactionName);
         if(user.isPushAgree()) {
-            fcmService.sendFcmMessage(receiver.getUser(), notification.getTitle(), notification.getBody());
+            fcmService.sendFcmMessage(receiver, notification.getTitle(), notification.getBody());
         }
         notificationCommandAdapter.createNotification(notification);
     }
@@ -61,11 +62,7 @@ public void createNotification(User user, Long treehouseId, NotificationRequestD
     @Transactional(readOnly = true)
     public NotificationResponseDTO.getNotifications getNotifications(User user){ //@AuthMember로 들어온 User 객체
         List<Member> members = user.getMemberList(); // 사용자의 Member(가입된 트리하우스 프로필) 목록 조회
-        List<Notification> notifications = members.stream()
-                .map(Member::getNotificationList)
-                .flatMap(List::stream)
-                .sorted(Comparator.comparing(Notification::getCreatedAt).reversed()) // createdAt 기준으로 내림차순 정렬
-                .toList();
+        List<Notification> notifications = user.getNotificationList(); // 사용자의 알림 목록 조회
 
         List<NotificationResponseDTO.getNotification> notificationDtos = notifications.stream()
                 .map(notification -> {

src/main/java/treehouse/server/api/user/business/UserMapper.java

@@ -9,6 +9,7 @@
 import treehouse.server.global.entity.User.UserRole;
 import treehouse.server.global.entity.User.UserStatus;
 
+import java.util.ArrayList;
 import java.util.List;
 
 @Component
@@ -40,6 +41,7 @@ public static User toUser(String name, String phone){
                 .phone(phone)
                 .role(UserRole.USER)
                 .status(UserStatus.ACTIVE)
+                .notificationList(new ArrayList<>())
                 .build();
     }
 

src/main/java/treehouse/server/global/entity/User/User.java

@@ -10,6 +10,7 @@
 import org.hibernate.annotations.SQLDelete;
 import treehouse.server.global.entity.common.BaseDateTimeEntity;
 import treehouse.server.global.entity.member.Member;
+import treehouse.server.global.entity.notification.Notification;
 
 import java.time.LocalDateTime;
 import java.util.List;
@@ -59,6 +60,9 @@ public class User extends BaseDateTimeEntity {
     @OneToMany(mappedBy = "user")
     private List<Member> memberList;
 
+    @OneToMany(mappedBy = "receiver")
+    List<Notification> notificationList;
+
     public void addMember(Member member) {
         memberList.add(member);
     }

src/main/java/treehouse/server/global/entity/member/Member.java

@@ -40,8 +40,6 @@ public class Member extends BaseDateTimeEntity {
     @ManyToOne(fetch = FetchType.LAZY)
     private TreeHouse treeHouse;
 
-    @OneToMany(mappedBy = "receiver")
-    List<Notification> notificationList;
 
     @OneToMany(mappedBy = "writer")
     List<Comment> commentList;

src/main/java/treehouse/server/global/entity/notification/Notification.java

@@ -2,6 +2,7 @@
 
 import jakarta.persistence.*;
 import lombok.*;
+import treehouse.server.global.entity.User.User;
 import treehouse.server.global.entity.common.BaseDateTimeEntity;
 import treehouse.server.global.entity.member.Member;
 
@@ -33,7 +34,7 @@ public class Notification extends BaseDateTimeEntity {
 
     @JoinColumn(name = "receiverId")
     @ManyToOne(fetch = FetchType.LAZY)
-    private Member receiver;
+    private User receiver;
 
     private Long targetId;
     private LocalDateTime receivedTime;