[J2KB-3rd-Season#25]feat: 게시글 수정 추가

Author: enjay27

src/main/java/com/devin/dev/controller/post/PostController.java

@@ -60,4 +60,9 @@ public DefaultResponse<?> changePostLike(@PathVariable("id") Long postId, HttpSe
         return postService.changePostLike(postId, request);
     }
 
+    @PutMapping("/post/{id}/update")
+    public DefaultResponse<?> reply(@PathVariable("id") Long replyId, @RequestBody PostUpdateForm form, HttpServletRequest request) {
+        return postService.editPost(replyId, form, request);
+    }
+
 }

src/main/java/com/devin/dev/controller/post/PostUpdateForm.java

@@ -0,0 +1,25 @@
+package com.devin.dev.controller.post;
+
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Data
+@NoArgsConstructor
+public class PostUpdateForm {
+    private Long id;
+    private String title;
+    private String content;
+    private List<String> post_images = new ArrayList<>();
+    private List<String> post_tags = new ArrayList<>();
+
+    public PostUpdateForm(Long id, String title, String content, List<String> post_images, List<String> post_tags) {
+        this.id = id;
+        this.title = title;
+        this.content = content;
+        this.post_images = post_images;
+        this.post_tags = post_tags;
+    }
+}

src/main/java/com/devin/dev/repository/post/PostRepositoryQueryImpl.java

@@ -122,7 +122,7 @@ public Page<Post> findAllByTagId(Long id, Pageable pageable) {
     }
 
     @Override
-    public Optional<PostDetailsDto> findPostDetailsById(Long id, ReplyOrderCondition condition) {
+    public Optional<PostDetailsDto> findPostDetailsByIdWithUserType(Long id, UserStatus status, ReplyOrderCondition condition) {
         Post result = queryFactory
                 .select(post)
                 .from(post)

src/main/java/com/devin/dev/service/PostService.java

@@ -2,6 +2,8 @@
 
 import com.devin.dev.controller.post.PostForm;
 import com.devin.dev.controller.post.PostSearchCondition;
+import com.devin.dev.controller.post.PostUpdateForm;
+import com.devin.dev.controller.post.ReplyUpdateForm;
 import com.devin.dev.controller.reply.ReplyOrderCondition;
 import com.devin.dev.dto.post.PostDetailsDto;
 import com.devin.dev.dto.post.PostInfoDto;
@@ -283,6 +285,58 @@ public DefaultResponse<?> changePostLike(Long postId, HttpServletRequest request
     private boolean isNotSameUser(User firstUser, User secondUser) {
         return !firstUser.getId().equals(secondUser.getId());
     }
+
+    @Transactional
+    public DefaultResponse<?> editPost(Long postId, PostUpdateForm form, HttpServletRequest request) {
+        String token = tokenProvider.parseToken(request);
+        Long userId;
+        if (tokenProvider.validateToken(token)) {
+            userId = tokenProvider.getUserId(token);
+        } else {
+            return new DefaultResponse<>(StatusCode.FAIL_AUTH, ResponseMessage.NOT_FOUND_USER);
+        }
+        Optional<User> userOptional = userRepository.findById(userId);
+        if (userOptional.isEmpty()) {
+            return new DefaultResponse<>(StatusCode.NOT_EXIST, ResponseMessage.NOT_FOUND_USER);
+        }
+        Optional<Post> postOptional = postRepository.findById(postId);
+        if (postOptional.isEmpty()) {
+            return new DefaultResponse<>(StatusCode.NOT_EXIST, ResponseMessage.NOT_FOUND_POST);
+        }
+        Post post = postOptional.get();
+        List<Subject> postSubjects = subjectRepository.findByNameIn(form.getPost_tags());
+
+        // 기존 태그 및 이미지 경로 삭제
+        List<PostImage> postImages = postImageRepository.findByPost(post);
+        postImageRepository.deleteInBatch(postImages);
+
+        // 수정된 내용 반영
+        List<PostImage> newPostImages = PostImage.createPostImages(form.getPost_images());
+        post.setTitle(form.getTitle());
+        post.setContent(form.getContent());
+        List<PostTag> deleteList = new ArrayList<>();
+
+        for (PostTag tag : post.getTags()) {
+            if (!postSubjects.contains(tag.getTag())) {
+                deleteList.add(tag);
+            } else {
+                postSubjects.remove(tag.getTag());
+            }
+        }
+        List<PostTag> newPostTags = PostTag.createPostTags(postSubjects);
+        postTagRepository.deleteInBatch(deleteList);
+
+        post.setPostTags(newPostTags);
+        post.setPostImages(newPostImages);
+
+        // 저장
+        postImageRepository.saveAll(newPostImages);
+        postRepository.save(post);
+        postTagRepository.saveAll(newPostTags);
+
+        // 성공 메시지 및 코드 반환
+        return new DefaultResponse<>(StatusCode.SUCCESS, ResponseMessage.POST_EDIT_SUCCESS);
+    }
 }