feat: 게시글 삭제 구현

Author: seok6555

src/main/java/com/back/domain/post/post/controller/PostController.java

@@ -8,6 +8,7 @@
 import jakarta.validation.Valid;
 import java.util.List;
 import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PatchMapping;
 import org.springframework.web.bind.annotation.PathVariable;
@@ -69,4 +70,17 @@ public RsData<PostResponseDto> updatePost(
   ) {
     return RsData.successOf(postService.updatePost(postId, reqBody)); // code=200, message="success"
   }
+
+  /**
+   * 게시글 삭제 API
+   * @param postId 삭제할 게시글 ID
+   * @return 삭제 성공 메시지
+   */
+  @DeleteMapping("/{postId}")
+  public RsData<Void> deletePost(
+      @PathVariable Long postId
+  ) {
+    postService.deletePost(postId);
+    return RsData.successOf(null); // code=200, message="success"
+  }
 }

src/main/java/com/back/domain/post/post/service/PostService.java

@@ -7,6 +7,7 @@
 import com.back.domain.post.post.dto.response.PostResponseDto;
 import com.back.domain.post.post.entity.Post;
 import com.back.domain.post.post.entity.Tag;
+import com.back.domain.post.post.enums.PostStatus;
 import com.back.domain.post.post.repository.PostRepository;
 import com.back.domain.post.post.repository.TagRepository;
 import com.back.domain.user.entity.User;
@@ -107,6 +108,18 @@ public PostResponseDto updatePost(Long postId, PostUpdateRequestDto reqBody) {
     return new PostResponseDto(post);
   }
 
+  // 게시글 삭제 로직
+  @Transactional
+  public void deletePost(Long postId) {
+    Post post = postRepository.findById(postId)
+        .orElseThrow(() -> new NoSuchElementException("해당 게시글을 찾을 수 없습니다. ID: " + postId));
+
+    post.updateStatus(PostStatus.DELETED);
+
+    // soft delete를 사용하기 위해 레포지토리 삭제 작업은 진행하지 않음.
+//    postRepository.delete(post);
+  }
+
   // 태그 추가 메서드
   private void addTag(List<String> tagNames, Post post) {
     for (String tagName : tagNames) {