[스프링 부트 쇼핑몰 프로젝트 with JPA] 17-1. 게시판 - Entity

이 내용은 스프링 부트 쇼핑몰 프로젝트 with JPA 책을 학습한 내용입니다.

Entity

• Board

    @Entity
    @Getter
    @Setter
    @ToString
    @NoArgsConstructor
    @AllArgsConstructor
    @Table(name = "board")
    public class Board extends BaseTimeEntity {
  
        @Id
        @GeneratedValue(strategy = GenerationType.IDENTITY)
        @Column
        private Long id; // 게시판 번호 (자동 증가)
  
        @ManyToOne(fetch = FetchType.LAZY)
        @JoinColumn(name = "userId") // 외래키 설정
        private UserEntity user;  // 사용자 id
  
        // 시간 빼둠
  
        @Column(length = 50)
        private String title;  // 제목
  
        @Column(length = 1000)
        private String content;  // 내용
  
        @Column(columnDefinition = "int default 0")
        private int recommend; // 좋아요
  
        @JsonIgnore
        @BatchSize(size = 500)
        @OneToMany(mappedBy = "board", cascade = CascadeType.ALL, orphanRemoval = true)
        private List<Recommend> recommends;  // 좋아요 리스트
  
        @JsonIgnore
        @BatchSize(size = 500)
        @OneToMany(mappedBy = "board", cascade = CascadeType.ALL, orphanRemoval = true)
        private List<BoardComment> comments;  // 댓글 리스트
  
        public Board(UserEntity user, String title, String content) {
            this.user=user;
            this.title=title;
            this.content=content;
        }
  
        // 게시글 수정
        public Board update(BoardUpdateDTO boardUpdateDTO) {
            this.title=boardUpdateDTO.getTitle();
            this.content=boardUpdateDTO.getContent();
            return this;
        }
    }

• BoardComment

    @Entity
    @Getter
    @Setter
    @ToString
    @NoArgsConstructor
    @AllArgsConstructor
    public class BoardComment extends BaseTimeEntity {
  
        @Id
        @GeneratedValue(strategy = GenerationType.IDENTITY)
        @Column
        private Long id; // 댓글 번호 (자동 증가)
  
        @ManyToOne(fetch = FetchType.LAZY)
        @JoinColumn(name = "boardId") // 외래키 설정
        private Board board;  // 게시판 번호
  
        @ManyToOne(fetch = FetchType.LAZY)
        @JoinColumn(name = "parentId")
        private BoardComment parent;
  
        // 시간 빼둠
  
        @ManyToOne(fetch = FetchType.LAZY)
        @JoinColumn(name = "userId") // 외래키 설정
        private UserEntity user;  // 사용자 id
  
        @Column(length = 500)
        private String content;  // 내용
  
        @Column(columnDefinition = "int default 0")
        private int recommend; // 댓글 좋아요
  
        @JsonIgnore
        @BatchSize(size = 500)
        @OneToMany(mappedBy = "boardComment", cascade = CascadeType.ALL, orphanRemoval = true)
        private List<RecommendComment> recommendComments;  // 좋아요 리스트
  
        @OneToMany(mappedBy = "parent", orphanRemoval = true)
        private List<BoardComment> children = new ArrayList<>();
  
        public BoardComment(UserEntity user, Board board, String content) {
            this.user=user;
            this.board=board;
            this.content=content;
        }
  
        public void updateParent(BoardComment parentComment) {
            this.parent=parentComment;
        }
  
        public BoardComment update(BoardCommentUpdateDTO boardCommentUpdateDTO) {
            this.content=boardCommentUpdateDTO.getContent();
            return this;
        }
    }

• Recomend

    @Entity
    @Getter
    @Setter
    @ToString
    @IdClass(RecommendId.class)
    @NoArgsConstructor
    @AllArgsConstructor
    @Table(name = "recommend")
    public class Recommend {
  
        @Id
        @ManyToOne(fetch = FetchType.LAZY)
        @JoinColumn(name = "userId")
        private UserEntity user;
  
        @Id
        @ManyToOne(fetch = FetchType.LAZY)
        @JoinColumn(name = "boardId")
        private Board board;
    }

• RecommendComment

    import com.example.walkingmate_back.user.entity.UserEntity;
    import jakarta.persistence.*;
    import lombok.*;
  
    @Entity
    @Getter
    @Setter
    @ToString
    @IdClass(RecommendCommentId.class)
    @NoArgsConstructor
    @AllArgsConstructor
    @Table(name = "recommendComment")
    public class RecommendComment {
  
        @Id
        @ManyToOne(fetch = FetchType.LAZY)
        @JoinColumn(name = "userId")
        private UserEntity user;
  
        @Id
        @ManyToOne(fetch = FetchType.LAZY)
        @JoinColumn(name = "boardCommentId")
        private BoardComment boardComment;
  
    }

• RecommendId

    import com.example.walkingmate_back.user.entity.UserEntity;
    import lombok.AllArgsConstructor;
    import lombok.Data;
    import lombok.NoArgsConstructor;
    import java.io.Serializable;
  
    @Data
    @NoArgsConstructor
    @AllArgsConstructor
    public class RecommendId implements Serializable {
        private UserEntity user;

• RecommendCommentId

  import com.example.walkingmate_back.user.entity.UserEntity;
  import lombok.AllArgsConstructor;
  import lombok.Data;
  import lombok.NoArgsConstructor;
  import java.io.Serializable;
  

@Data
@NoArgsConstructor
@AllArgsConstructor
public class RecommendCommentId implements Serializable {
private UserEntity user;
private BoardComment boardComment;
}
```