Merge pull request #113 from prgrms-web-devcourse-final-project/Feature/QFEED-168-GrouPostComment

[QFEED-147] feature : 그룹 게시물/댓글 작성 시 그룹 멤버 여부 확인 로직 추가

Author: jieun5119

module-application/src/main/java/com/wsws/moduleapplication/group/service/GroupCommentService.java

@@ -8,12 +8,14 @@
 import com.wsws.moduleapplication.group.event.GroupCommentLikedEvent;
 import com.wsws.moduleapplication.group.exception.GroupCommentNotFoundException;
 import com.wsws.moduleapplication.group.exception.GroupPostNotFoundException;
+import com.wsws.moduleapplication.group.exception.MemberNotInGroupException;
 import com.wsws.moduleapplication.group.exception.NotOwnerException;
 import com.wsws.moduleapplication.usercontext.user.exception.AlreadyLikedException;
 import com.wsws.moduleapplication.usercontext.user.exception.NotLikedException;
 import com.wsws.moduledomain.group.GroupComment;
 import com.wsws.moduledomain.group.GroupPost;
 import com.wsws.moduledomain.group.repo.GroupCommentRepository;
+import com.wsws.moduledomain.group.repo.GroupMemberRepository;
 import com.wsws.moduledomain.group.repo.GroupPostRepository;
 import com.wsws.moduledomain.feed.like.Like;
 import com.wsws.moduledomain.feed.like.LikeRepository;
@@ -37,6 +39,7 @@ public class GroupCommentService {
     private final LikeRepository likeRepository;
     private final GroupPostRepository groupPostRepository;
     private final ApplicationEventPublisher eventPublisher;
+    private final GroupMemberRepository groupMemberRepository;
 
 
 
@@ -45,6 +48,8 @@ public class GroupCommentService {
     public void createGroupComment(CreateGroupCommentRequest request, Long groupPostId, String userId) {
         GroupPost groupPost = getGroupPost(groupPostId);
 
+        validateGroupMembership(userId, groupPost.getGroupId().getValue());
+
         GroupComment groupComment = GroupComment.create(
                 null,
                 request.content(),
@@ -165,11 +170,19 @@ private GroupPost getGroupPost(Long groupPostId) {
                 .orElseThrow(() -> GroupPostNotFoundException.EXCEPTION);
     }
 
+
     private GroupComment getGroupComment(Long groupCommentId) {
         return groupCommentRepository.findById(groupCommentId)
                 .orElseThrow(() -> GroupCommentNotFoundException.EXCEPTION);
     }
 
+    // 그룹 멤버 여부 확인
+    private void validateGroupMembership(String userId, Long groupId) {
+        boolean isMember = groupMemberRepository.existsByUserIdAndGroupId(userId, groupId);
+        if (!isMember) {
+            throw MemberNotInGroupException.EXCEPTION;        }
+        }
+
     // 본인 여부 확인
     private void validateUser(GroupComment groupComment, String userId) {
         if (!groupComment.getUserId().equals(UserId.of(userId))) {
@@ -181,4 +194,3 @@ private void validateUser(GroupComment groupComment, String userId) {
 
 
 
-

module-application/src/main/java/com/wsws/moduleapplication/group/service/GroupPostService.java

@@ -6,6 +6,7 @@
 import com.wsws.moduleapplication.feed.dto.LikeServiceRequest;
 import com.wsws.moduleapplication.group.event.GroupPostLikeEvent;
 import com.wsws.moduleapplication.group.exception.GroupPostNotFoundException;
+import com.wsws.moduleapplication.group.exception.MemberNotInGroupException;
 import com.wsws.moduleapplication.group.exception.NotOwnerException;
 import com.wsws.moduleapplication.usercontext.user.exception.AlreadyLikedException;
 import com.wsws.moduleapplication.usercontext.user.exception.NotLikedException;
@@ -16,6 +17,7 @@
 import com.wsws.moduledomain.group.dto.GroupCommentDto;
 import com.wsws.moduledomain.group.dto.GroupPostDetailDto;
 import com.wsws.moduledomain.group.repo.GroupCommentRepository;
+import com.wsws.moduledomain.group.repo.GroupMemberRepository;
 import com.wsws.moduledomain.group.repo.GroupPostRepository;
 import com.wsws.moduledomain.feed.like.Like;
 import com.wsws.moduledomain.feed.like.LikeRepository;
@@ -38,10 +40,15 @@ public class GroupPostService {
     private final LikeRepository likeRepository;
     private final GroupCommentRepository groupCommentRepository;
     private final ApplicationEventPublisher eventPublisher;
+    private final GroupMemberRepository groupMemberRepository;
+
 
     // 게시물 생성
     @Transactional
     public void createGroupPost(CreateGroupPostRequest request, Long groupId, String userId) {
+
+        validateGroupMembership(userId, groupId);
+
         GroupPost post = GroupPost.create(
                 null, groupId, request.content(),
                 processGroupPostImage(request.url()), userId, 0L, 0L
@@ -150,6 +157,14 @@ private boolean isAlreadyLiked(Long targetId, String userId, TargetType targetTy
         return likeRepository.existsByTargetIdAndUserIdAndTargetType(targetId, userId, targetType);
     }
 
+
+    // 그룹 멤버 여부 확인
+    private void validateGroupMembership(String userId, Long groupId) {
+        boolean isMember = groupMemberRepository.existsByUserIdAndGroupId(userId, groupId);
+        if (!isMember) {
+            throw MemberNotInGroupException.EXCEPTION;        }
+    }
+
     // 게시글 이미지
     private String processGroupPostImage(MultipartFile groupImageFile) {
         if (groupImageFile != null && !groupImageFile.isEmpty()) {