Merge pull request #36 from IT-Cotato/feat/21-post

[REFACTOR] Post Create 로직 수정 + Post 엔티티 수정

src/main/java/com/cotato/kampus/domain/post/api/PostController.java

@@ -4,7 +4,6 @@
 
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.DeleteMapping;
-import org.springframework.web.bind.annotation.PatchMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -41,6 +40,7 @@ public ResponseEntity<DataResponse<PostCreateResponse>> createPost(
 				request.title(),
 				request.content(),
 				request.postCategory(),
+				request.anonymity(),
 				images
 				)
 			)
@@ -51,6 +51,7 @@ public ResponseEntity<DataResponse<PostCreateResponse>> createPost(
 	public ResponseEntity<DataResponse<PostDeleteResponse>> deletePost(
 		@PathVariable Long postId
 	){
+
 		return ResponseEntity.ok(DataResponse.from(
 			PostDeleteResponse.of(
 				postService.deletePost(

src/main/java/com/cotato/kampus/domain/post/application/PostAppender.java

@@ -21,7 +21,14 @@ public class PostAppender {
 	private final PostRepository postRepository;
 
 	@Transactional
-	public Long append(Long boardId, String title, String content, String postCategory){
+	public Long append(
+		Long boardId,
+		String title,
+		String content,
+		String postCategory,
+		Anonymity anonymity
+	){
+
 		Long userId = apiUserResolver.getUserId();
 
 		Post post = Post.builder()
@@ -31,9 +38,10 @@ public Long append(Long boardId, String title, String content, String postCatego
 			.content(content)
 			.likes(0L)
 			.scraps(0L)
-			.anonymity(Anonymity.ANONYMOUS)
+			.anonymity(anonymity)
 			.postStatus(PostStatus.PUBLISHED)
 			.postCategory(postCategory)
+			.nextAnonymousNumber(1L)
 			.build();
 
 		return postRepository.save(post).getId();

src/main/java/com/cotato/kampus/domain/post/application/PostFinder.java

@@ -17,8 +17,16 @@
 public class PostFinder {
 	private final PostRepository postRepository;
 
-	public Post getById(Long postId){
+	public Post getPost(Long postId){
+
 		return postRepository.findById(postId)
 			.orElseThrow(() -> new AppException(ErrorCode.POST_NOT_FOUND));
 	}
+
+	public Long getAuthorId(Long postId){
+		Post post = postRepository.findById(postId)
+			.orElseThrow(() -> new AppException(ErrorCode.POST_NOT_FOUND));
+
+		return post.getUserId();
+	}
 }

src/main/java/com/cotato/kampus/domain/post/application/PostService.java

@@ -5,7 +5,11 @@
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
 
+import com.cotato.kampus.domain.common.application.ApiUserResolver;
+import com.cotato.kampus.domain.common.enums.Anonymity;
 import com.cotato.kampus.domain.product.application.PostDeleter;
+import com.cotato.kampus.global.error.ErrorCode;
+import com.cotato.kampus.global.error.exception.AppException;
 import com.cotato.kampus.global.error.exception.ImageException;
 import com.cotato.kampus.global.util.s3.S3Uploader;
 
@@ -21,30 +25,50 @@ public class PostService {
 	private final PostDeleter postDeleter;
 	private final PostImageAppender postImageAppender;
 	private static final String PRODUCT_IMAGE_FOLDER = "post";
+	private final ApiUserResolver apiUserResolver;
+	private final PostFinder postFinder;
 
 	@Transactional
 	public Long createPost(
 		Long boardId,
 		String title,
 		String content,
 		String postCategory,
+		Anonymity anonymity,
 		List<MultipartFile> images
 	) throws ImageException {
 		// s3에 이미지 업로드
 		List<String> imageUrls = (images == null || images.isEmpty()) ?
-			List.of() : s3Uploader.uploadFiles(images, PRODUCT_IMAGE_FOLDER);
+			List.of() :
+			s3Uploader.uploadFiles(
+				images.stream()
+					.filter(image -> image != null && image.getOriginalFilename() != null && !image.getOriginalFilename().isEmpty())
+					.toList(),
+				PRODUCT_IMAGE_FOLDER
+			);
 
 		// 게시글 추가
-		Long postId = postAppender.append(boardId, title, content, postCategory);
+		Long postId = postAppender.append(boardId, title, content, postCategory, anonymity);
 
 		// 게시글 이미지 추가
-		postImageAppender.appendAll(postId, imageUrls);
+		if(!imageUrls.isEmpty()) {
+			postImageAppender.appendAll(postId, imageUrls);
+		}
 
 		return postId;
 	}
 
 	@Transactional
 	public Long deletePost(Long postId){
+		// 작성자 검증: 현재 사용자가 게시글 작성자인지 확인
+		Long userId = apiUserResolver.getUserId();
+		Long authorId = postFinder.getAuthorId(postId);
+
+		// 작성자가 아닌 경우 예외 처리
+		if(userId != authorId)
+			throw new AppException(ErrorCode.POST_NOT_AUTHOR);
+
+		// 게시글 삭제
 		postDeleter.delete(postId);
 
 		return postId;

src/main/java/com/cotato/kampus/domain/post/domain/Post.java

@@ -57,10 +57,13 @@ public class Post extends BaseTimeEntity {
 	@Column(name = "post_category", nullable = false)
 	private String postCategory;
 
+	@Column(name = "next_ananymous_number", nullable = false)
+	private Long nextAnonymousNumber = 1L;
+
 	@Builder
 	public Post(Long userId, Long boardId, String title, String content,
 		Long likes, Long scraps, Anonymity anonymity,
-		PostStatus postStatus, String postCategory) {
+		PostStatus postStatus, String postCategory, Long nextAnonymousNumber) {
 		this.userId = userId;
 		this.boardId = boardId;
 		this.title = title;
@@ -70,5 +73,6 @@ public Post(Long userId, Long boardId, String title, String content,
 		this.anonymity = anonymity;
 		this.postStatus = postStatus;
 		this.postCategory = postCategory;
+		this.nextAnonymousNumber = nextAnonymousNumber;
 	}
 }

src/main/java/com/cotato/kampus/domain/post/dto/request/PostCreateRequest.java

@@ -1,9 +1,12 @@
 package com.cotato.kampus.domain.post.dto.request;
 
+import com.cotato.kampus.domain.common.enums.Anonymity;
+
 public record PostCreateRequest(
 	Long boardId,
 	String title,
 	String content,
-	String postCategory
+	String postCategory,
+	Anonymity anonymity
 ) {
 }

src/main/java/com/cotato/kampus/domain/product/application/PostDeleter.java

@@ -23,13 +23,7 @@ public class PostDeleter {
 	private final PostFinder postFinder;
 
 	public void delete(Long postId){
-		User user = apiUserResolver.getUser();
-
-		Post post = postFinder.getById(postId);
-
-		if(post.getUserId() != user.getId()){
-			throw new AppException(ErrorCode.POST_NOT_AUTHOR);
-		}
+		Post post = postFinder.getPost(postId);
 		postRepository.delete(post);
 	}
 }