[feat/#164] Create Community Post Modify API

src/main/java/com/example/helloworldmvc/converter/CommunityConverter.java

@@ -116,5 +116,13 @@ public static CommunityResponseDTO.DeletedPostDTO toDeletedPostDTO(Community com
                 .post_id(community.getId())
                 .build();
     }
-
+    public static CommunityResponseDTO.ModifyPostDTO toModifyPostDTO(Community community, Boolean isOwner){
+        return CommunityResponseDTO.ModifyPostDTO.builder()
+                .title(community.getTitle())
+                .content(community.getContent())
+                .communityWriterEmail(community.getUser().getEmail())
+                .created_at(community.getCreatedAt())
+                .isOwner(isOwner)
+                .build();
+    }
 }

src/main/java/com/example/helloworldmvc/domain/Community.java

@@ -49,4 +49,11 @@ public void setUser(User user) {
         user.getCommunityList().add(this);
     }
 
+    public void setTitle(String title) {
+        this.title = title;
+    }
+    public void setContent(String content) {
+        this.content = content;
+    }
+
 }

src/main/java/com/example/helloworldmvc/service/CommunityService.java

@@ -12,5 +12,6 @@ public interface CommunityService {
     CommunityResponseDTO.PostListDTO getCommunityList(String userId, Long categoryId, Integer page, Integer size);
     CommunityResponseDTO.PostDetailDTO getCommunityDetail(String userId, Long communityId, Integer page, Integer size);
     CommunityResponseDTO.DeletedPostDTO deleteCommunityPost(String userId, Long categoryId, Long communityId);
+    CommunityResponseDTO.ModifyPostDTO modifyCommunityPost(String userId, Long communityId, CommunityRequestDTO.ModifyPostDTO modifyPostDTO);
 
 }

src/main/java/com/example/helloworldmvc/service/CommunityServiceImpl.java

@@ -82,4 +82,25 @@ public CommunityResponseDTO.DeletedPostDTO deleteCommunityPost(String userId, Lo
         communityRepository.deleteById(community.getId());
         return CommunityConverter.toDeletedPostDTO(community);
     }
+
+    @Override
+    public CommunityResponseDTO.ModifyPostDTO modifyCommunityPost(String userId, Long communityId, CommunityRequestDTO.ModifyPostDTO modifyPostDTO) {
+        User user = userRepository.findByEmail(userId).orElseThrow(() -> new GeneralException(ErrorStatus.USER_NOT_FOUND));
+        Community community = communityRepository.findById(communityId).orElseThrow(() -> new GeneralException(ErrorStatus.COMMUNITY_POST_NOT_FOUND));
+        if(!community.getUser().getId().equals(user.getId())){
+            throw new GeneralException(ErrorStatus.COMMUNITY_NOT_OWNER);
+        }
+        if(!modifyPostDTO.getTitle().isEmpty()){
+            community.setTitle(modifyPostDTO.getTitle());
+        }
+        if(!modifyPostDTO.getContent().isEmpty()){
+            community.setContent(modifyPostDTO.getContent());
+        }
+        boolean isOwner = false;
+        if(community.getUser().getEmail().equals(user.getEmail())) {
+            isOwner = true;
+        }
+        communityRepository.save(community);
+        return CommunityConverter.toModifyPostDTO(community, isOwner);
+    }
 }

src/main/java/com/example/helloworldmvc/web/controller/CommunityController.java

@@ -122,4 +122,22 @@ public ApiResponse<CommunityResponseDTO.DeletedPostDTO> deleteCommunity(@Request
         String gmail = jwtTokenProvider.getGoogleEmail(accessToken);
         return ApiResponse.onSuccess(communityService.deleteCommunityPost(gmail, categoryId, communityId));
     }
+
+    @PatchMapping(value = "/{category_id}/{community_id}/modify")
+    @Operation(summary = "커뮤니티 글 수정 API", description = "커뮤니티 게시판에 글을 수정하는 API입니다.")
+    @ApiResponses({
+            @io.swagger.v3.oas.annotations.responses.ApiResponse(responseCode = "COMMON200", description = "OK, 성공"),
+            @io.swagger.v3.oas.annotations.responses.ApiResponse(responseCode = "USER4001", description = "사용자를 찾을수 없습니다.")
+    })
+    @Parameters({
+            @Parameter(name = "Authorization", description = "RequestHeader - 로그인한 사용자 토큰"),
+            @Parameter(name = "community_id", description = "PathVariable - 게시글 아이디"),
+    })
+    public ApiResponse<CommunityResponseDTO.ModifyPostDTO> modifyCommunity(@RequestHeader(name = "Authorization") String accessToken,
+                                                                            @PathVariable(name = "community_id") Long communityId,
+                                                                            @RequestBody @Valid CommunityRequestDTO.ModifyPostDTO modifyPostDTO
+                                                                           ) {
+        String gmail = jwtTokenProvider.getGoogleEmail(accessToken);
+        return ApiResponse.onSuccess(communityService.modifyCommunityPost(gmail, communityId, modifyPostDTO));
+    }
 }

src/main/java/com/example/helloworldmvc/web/dto/CommunityRequestDTO.java

@@ -20,4 +20,14 @@ public static class CreatePostDTO {
 
         List<MultipartFile> images;
     }
+
+    @Getter
+    @Setter
+    public static class ModifyPostDTO {
+        @NotBlank
+        String title;
+
+        @NotBlank
+        String content;
+    }
 }

src/main/java/com/example/helloworldmvc/web/dto/CommunityResponseDTO.java

@@ -71,4 +71,16 @@ public static class DeletedPostDTO{
         String categoryName;
         Long post_id;
     }
+
+    @Builder
+    @Getter
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class ModifyPostDTO{
+        String title;
+        String content;
+        String communityWriterEmail;
+        LocalDateTime created_at;
+        Boolean isOwner;
+    }
 }