김연비 과제제출

src/main/java/io/sparta/board/BoardApplication.java

@@ -2,10 +2,14 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
 @SpringBootApplication
+@EnableJpaAuditing
+
 public class BoardApplication {
 
+
 	public static void main(String[] args) {
 		SpringApplication.run(BoardApplication.class, args);
 	}

src/main/java/io/sparta/board/common/BaseEntity.java

@@ -0,0 +1,25 @@
+package io.sparta.board.common;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.EntityListeners;
+import jakarta.persistence.MappedSuperclass;
+import java.time.LocalDateTime;
+import lombok.Getter;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.annotation.LastModifiedDate;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+@Getter
+@MappedSuperclass
+@EntityListeners(AuditingEntityListener.class)
+public class BaseEntity {
+
+  @CreatedDate
+  @Column(name = "create_at", nullable = false, updatable = false)
+  private LocalDateTime createdAt;
+
+  @LastModifiedDate
+  @Column(name = "updated_at", nullable = false)
+  private LocalDateTime updatedAt;
+
+}

src/main/java/io/sparta/board/controller/CommentController.java

@@ -0,0 +1,44 @@
+package io.sparta.board.controller;
+
+
+import io.sparta.board.dto.CommentRequestDto;
+import io.sparta.board.entity.Comment;
+import io.sparta.board.service.CommentService;
+import java.util.UUID;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/api/comments")
+public class CommentController {
+
+  private final CommentService commentService;
+
+  @PostMapping("/post/{postId}")
+  public ResponseEntity<UUID> createComment(@PathVariable UUID postId, @RequestBody
+      CommentRequestDto requestDto) {
+    UUID commentId = commentService.createComment(postId, requestDto);
+    return ResponseEntity.ok(commentId);
+  }
+
+  @PutMapping("/{commentId}")
+  public ResponseEntity<Void> updateComment(@PathVariable UUID commentId, @RequestBody CommentRequestDto requestDto) {
+    commentService.updateComment(commentId, requestDto);
+    return ResponseEntity.ok().build();
+  }
+
+  @DeleteMapping("/{commentId}")
+  public ResponseEntity<Void> deleteComment(@PathVariable UUID commentId) {
+    commentService.deleteComment(commentId);
+    return ResponseEntity.ok().build();
+  }
+
+}

src/main/java/io/sparta/board/controller/PostController.java

@@ -0,0 +1,50 @@
+package io.sparta.board.controller;
+
+
+import io.sparta.board.dto.PostRequestDto;
+import io.sparta.board.dto.PostResponseDto;
+import io.sparta.board.entity.Post;
+import io.sparta.board.service.PostService;
+import java.util.UUID;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/api/posts")
+public class PostController {
+
+  private final PostService postService;
+
+  @PostMapping
+  public ResponseEntity<UUID> createPost(@RequestBody PostRequestDto requestDto) {
+    UUID postId = postService.createPost(requestDto);
+    return ResponseEntity.ok(postId);
+  }
+
+  @GetMapping("/{postId}")
+  public ResponseEntity<PostResponseDto> getPost(@PathVariable UUID postId) {
+    return ResponseEntity.ok(postService.getPost(postId));
+  }
+
+  @PutMapping("/{postId}")
+  public ResponseEntity<Void> updatePost(@PathVariable UUID postId, @RequestBody PostRequestDto requestDto) {
+    postService.updatePost(postId, requestDto);
+    return ResponseEntity.ok().build();
+  }
+
+  @DeleteMapping("/{postId}")
+  public ResponseEntity<Void> deletePost(@PathVariable UUID postId) {
+    postService.deletePost(postId);
+    return ResponseEntity.ok().build();
+  }
+
+}

src/main/java/io/sparta/board/dto/CommentRequestDto.java

@@ -0,0 +1,9 @@
+package io.sparta.board.dto;
+
+import lombok.Getter;
+
+@Getter
+public class CommentRequestDto {
+  private String content;
+
+}

src/main/java/io/sparta/board/dto/CommentResponseDto.java

@@ -0,0 +1,27 @@
+package io.sparta.board.dto;
+
+
+import io.sparta.board.entity.Comment;
+import java.time.LocalDateTime;
+import java.util.UUID;
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@Builder
+public class CommentResponseDto {
+  private UUID id;
+  private String content;
+  private LocalDateTime createdAt;
+  private LocalDateTime updatedAt;
+
+  public static CommentResponseDto fromEntity(Comment comment) {
+    return CommentResponseDto.builder()
+        .id(comment.getId())
+        .content(comment.getContent())
+        .createdAt(comment.getCreatedAt())
+        .updatedAt(comment.getUpdatedAt())
+        .build();
+  }
+
+}

src/main/java/io/sparta/board/dto/PostRequestDto.java

@@ -0,0 +1,14 @@
+package io.sparta.board.dto;
+
+
+import lombok.Getter;
+
+@Getter
+public class PostRequestDto {
+  private String title;
+  private String content;
+
+}
+
+
+

src/main/java/io/sparta/board/dto/PostResponseDto.java

@@ -0,0 +1,19 @@
+package io.sparta.board.dto;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.UUID;
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@Builder
+public class PostResponseDto {
+  private UUID id;
+  private String title;
+  private String content;
+  private LocalDateTime createdAt;
+  private LocalDateTime updatedAt;
+  private List<CommentResponseDto> comments;
+
+}

src/main/java/io/sparta/board/entity/Comment.java

@@ -0,0 +1,59 @@
+package io.sparta.board.entity;
+
+
+import io.sparta.board.common.BaseEntity;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import java.util.UUID;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.GenericGenerator;
+
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor
+@Builder
+@Entity
+@Table(name = "p_comment")
+public class Comment extends BaseEntity {
+
+  @Id
+  @GeneratedValue(generator = "UUID")
+  @GenericGenerator(name = "UUID", strategy = "org.hibernate.id.UUIDGenerator")
+  @Column(columnDefinition = "uuid", updatable = false)
+  private UUID id;
+
+  @ManyToOne(fetch = FetchType.LAZY)
+  @JoinColumn(name = "post_id",nullable = false)
+  private Post post;
+
+  @Column(nullable = false, columnDefinition = "TEXT")
+  private String content;
+
+  @Column(nullable = false)
+  private boolean deleted = false;
+
+  // 비지니스 로직
+  public void update(String content) {
+    this.content = content;
+  }
+
+  public void softDelete() {
+    this.deleted = true;
+  }
+
+  // 연관관계 편의 메서드
+  public void setPost(Post post) {
+    this.post = post;
+  }
+
+}

src/main/java/io/sparta/board/entity/Post.java

@@ -0,0 +1,77 @@
+package io.sparta.board.entity;
+
+import io.sparta.board.common.BaseEntity;
+import jakarta.persistence.CascadeType;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import org.hibernate.annotations.GenericGenerator;
+
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor
+@Builder
+@Entity
+@Table(name = "p_post")
+public class Post extends BaseEntity {
+
+  @Id
+  @GeneratedValue(generator = "UUID")
+  @GenericGenerator(name = "UUID", strategy = "org.hibernate.id.UUIDGenerator")
+  @Column(columnDefinition = "uuid", updatable = false)
+  private UUID id;
+
+  @Column(nullable = false, length = 100)
+  private String title;
+
+  @Column(nullable = false,columnDefinition = "TEXT")
+  private String content;
+
+  @Column(nullable = false)
+  @Builder.Default
+  private boolean deleted = false;
+
+  @OneToMany(mappedBy = "post", cascade = CascadeType.ALL, orphanRemoval = true)
+  @Builder.Default
+  private List<Comment> comments = new ArrayList<>();
+
+  // 편의 메서드 (댓글 연관관계 관리용)
+
+
+  public void addComment(Comment comment) {
+    comments.add(comment);
+    comment.setPost(this);
+  }
+
+  // 비지니스 로직
+  public void update(String title, String content){
+    this.title = title;
+    this.content = content;
+  }
+
+  public void softDelete() {
+    this.deleted = true;
+    comments.forEach(Comment::softDelete); // 댓글도 함께 soft-delete
+  }
+
+
+
+}

src/main/java/io/sparta/board/repository/CommentRepository.java

@@ -0,0 +1,15 @@
+package io.sparta.board.repository;
+
+import io.sparta.board.entity.Comment;
+import io.sparta.board.entity.Post;
+import java.util.List;
+import java.util.UUID;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface CommentRepository extends JpaRepository<Comment, UUID> {
+
+  // 해당 게시글에 달린 삭제되지 않은 댓글 목록
+  List<Comment> findByPostAndDeletedFalse(Post post);
+
+}

src/main/java/io/sparta/board/repository/PostRepository.java

@@ -0,0 +1,19 @@
+package io.sparta.board.repository;
+
+// 게시글, 댓글,저장 / 조회/ 삭제가 가능한 Repository 만들기
+// soft-delete 처리된 데이터는 제외하고 조회하기
+
+import io.sparta.board.entity.Post;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface PostRepository extends JpaRepository<Post, UUID>
+{
+
+  // 삭제되지 않은 게시글만 조회
+  Optional<Post> findByIdAndDeletedFalse(UUID id);
+
+  List<Post> findAllByDeletedFalse();
+}