[Mlog] 나만의 블로그 만들기 - Entity 구현

📌 Entity 구현

지난 게시글의 설계된 ER-D를 활용해 Entity를 구현했다.

Post

Post와 PostFile은 1:N 관계이므로 각각 OneToMany , ManyToOne 매핑을 해주었다.

@Entity
@NoArgsConstructor
@Getter
@SequenceGenerator(
        name =  "POST_SEQ_GEN", // 시퀀스 제너레이터 이름
        sequenceName = "POST_SEQ", // 시퀀스 이름
        initialValue = 1,
        allocationSize = 1
)
public class Post {
    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "POST_SEQ_GEN")
    private Integer id;

    @Column(length = 100, nullable = false)
    private String title;

    @Column(columnDefinition = "LONGTEXT", nullable = false)
    private String content;
    @Column(nullable = false)
    private String previewContent;
    @Column
    private String thumbnail;

    @Column(nullable = false)
    @CreationTimestamp
    private LocalDateTime writingTime;

    @OneToMany(mappedBy = "post", cascade = CascadeType.REMOVE, orphanRemoval = true)
    private List<PostFile> fileList = new ArrayList<>();

    @Column(nullable = false)
    private Boolean visible;

    @Builder
    public Post(Integer id, String title, String content, String previewContent, String thumbnail, LocalDateTime writingTime, List<PostFile> fileList, Boolean visible) {
        this.id = id;
        this.title = title;
        this.content = content;
        this.previewContent = previewContent;
        this.thumbnail = thumbnail;
        this.writingTime = writingTime;
        this.fileList = fileList;
        this.visible = visible;
    }

PostFile

@Entity
@Getter
@NoArgsConstructor
public class PostFile {
    @Id @Column(length = 50)
    private String uuid;

    @Column(length = 100, nullable = false)
    private String mimeType;

    @Column(length = 500, nullable = false)
    private String originalFileName;

    @Column(length = 100, nullable = false)
    private String fileName;

    @Column
    private Long fileSize;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "post_id")
    private Post post;

    @Builder
    public PostFile(String uuid, String mimeType, String originalFileName, String fileName, Long fileSize, Post post) {
        this.uuid = uuid;
        this.mimeType = mimeType;
        this.originalFileName = originalFileName;
        this.fileName = fileName;
        this.fileSize = fileSize;
        this.post = post;
    }
}

Project

Project와 ProjectFile도 마찬가지로 1:N 관계이므로 각각 OneToMany, ManyToOne으로 매핑해주었다.

@Entity
@SequenceGenerator(
        name =  "PROJECT_SEQ_GEN", // 시퀀스 제너레이터 이름
        sequenceName = "PROJECT_SEQ", // 시퀀스 이름
        initialValue = 1,
        allocationSize = 1
)
@NoArgsConstructor
@Getter
public class Project {
    @Id @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "PROJECT_SEQ_GEN")
    private Integer id;

    @Column(length = 100, nullable = false)
    private String title;

    @Column(columnDefinition = "LONGTEXT", nullable = false)
    private String content;
    private String thumbnail;

    @Column(length = 500, nullable = false)
    private String summary;

    @Column(length = 100, nullable = false)
    private String duration;

    @Column(length = 500, nullable = false)
    private String skills;

    @Column(length = 500, nullable = false)
    private String learning;

    @Column(nullable = false)
    private LocalDateTime writingTime;

    @OneToMany(mappedBy = "project", cascade = CascadeType.ALL, orphanRemoval = true)
    private List<ProjectFile> fileList = new ArrayList<>();

    @Column(nullable = false)
    private Boolean visible;

    @Builder
    public Project(Integer id, String title, String content, String thumbnail, String summary, String duration, String skills, String learning, LocalDateTime writingTime, List<ProjectFile> fileList, Boolean visible) {
        this.id = id;
        this.title = title;
        this.content = content;
        this.thumbnail = thumbnail;
        this.summary = summary;
        this.duration = duration;
        this.skills = skills;
        this.learning = learning;
        this.writingTime = writingTime;
        this.fileList = fileList;
        this.visible = visible;
    }
}

ProjectFile

@Entity
public class ProjectFile {
    @Id @Column(length = 50)
    private String uuid;

    @Column(length = 100, nullable = false)
    private String mimeType;

    @Column(length = 500, nullable = false)
    private String originalFileName;

    @Column(length = 100, nullable = false)
    private String fileName;

    @Column
    private Long fileSize;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "project_id")
    private Project project;

}

Admin

Admin Entity에서는 Spring Security를 사용할 때 필요한 UserDetails 클래스의 함수를 오버라이딩하여 구현하였다.

@Entity
@Getter
public class Admin implements UserDetails {
    @Id @Column(length = 100)
    private String id;

    @Column(length = 200, nullable = false)
    private String password;

    @ElementCollection(fetch = FetchType.EAGER)
    @Builder.Default
    private List<String> roles = new ArrayList<>();

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        return this.roles.stream()
                .map(SimpleGrantedAuthority::new)
                .collect(Collectors.toList());
    }

    @Override
    public String getPassword() {
        return password;
    }

    @Override
    public String getUsername() {
        return id;
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}