OpenIsle/src/main/java/com/openisle/model/Comment.java

package com.openisle.model;

import jakarta.persistence.*;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;

import java.time.LocalDateTime;

@Entity
@Getter
@Setter
@NoArgsConstructor
@Table(name = "comments")
public class Comment {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

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

    @Column(nullable = false)
    private LocalDateTime createdAt;

    @ManyToOne(fetch = FetchType.LAZY, optional = false)
    @JoinColumn(name = "author_id")
    private User author;

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

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "parent_id")
    private Comment parent;

    @PrePersist
    protected void onCreate() {
        this.createdAt = LocalDateTime.now();
    }
}