models.py

from django.db import models
from django.conf import settings
from blog.models import Article
from django.utils.timezone import now


# Create your models here.

class Comment(models.Model):
    body = models.TextField('正文', max_length=300)
    created_time = models.DateTimeField('创建时间', default=now)
    last_mod_time = models.DateTimeField('修改时间', default=now)
    author = models.ForeignKey(settings.AUTH_USER_MODEL, verbose_name='作者', on_delete=models.CASCADE)
    article = models.ForeignKey(Article, verbose_name='文章', on_delete=models.CASCADE)
    parent_comment = models.ForeignKey('self', verbose_name="上级评论", blank=True, null=True, on_delete=models.CASCADE)
    is_enable = models.BooleanField('是否显示', default=True, blank=False, null=False)

    class Meta:
        ordering = ['-created_time']
        verbose_name = "评论"
        verbose_name_plural = verbose_name
        get_latest_by = 'created_time'

    def __str__(self):
        return self.body

    def save(self, *args, **kwargs):
        super().save(*args, **kwargs)