ForumPost.java

package com.wavii.model;

import jakarta.persistence.Column;
import jakarta.persistence.Entity;
import jakarta.persistence.FetchType;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;
import jakarta.persistence.JoinColumn;
import jakarta.persistence.ManyToOne;
import jakarta.persistence.PrePersist;
import jakarta.persistence.Table;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.time.LocalDateTime;
import java.util.UUID;

/**
 * Entidad que representa un mensaje o publicación dentro de un foro.
 */
@Entity
@Table(name = "forum_posts")
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class ForumPost {

    @Id
    @GeneratedValue(strategy = GenerationType.UUID)
    private UUID id;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "forum_id", nullable = false)
    private Forum forum;

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

    @Column(nullable = false, length = 2000)
    private String content;

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

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