OpenIsle/backend/src/main/java/com/openisle/model/PostChangeLog.java

package com.openisle.model;

import jakarta.persistence.*;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import org.hibernate.annotations.CreationTimestamp;

import java.time.LocalDateTime;

@Getter
@Setter
@NoArgsConstructor
@Entity
@Table(name = "post_change_logs")
@Inheritance(strategy = InheritanceType.JOINED)
public abstract class PostChangeLog {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

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

    @ManyToOne(fetch = FetchType.LAZY, optional = true)
    @JoinColumn(name = "user_id")
    private User user;

    @CreationTimestamp
    @Column(nullable = false, updatable = false)
    private LocalDateTime createdAt;

    @Enumerated(EnumType.STRING)
    @Column(nullable = false)
    private PostChangeType type;
}