1、确定表结构
from django.contrib.auth.models import AbstractUser class UserInfo(AbstractUser): """ 用户信息表, 继承session生成的auth_user表 需要在setting中加入 AUTH_USER_MODEL = ‘app01.UserInfo‘ """ nid = models.AutoField(primary_key=True) telephone = models.CharField(max_length=11, null=True, unique=True) avatar = models.FileField(upload_to=‘avatars/‘, default=‘/avatars/default.png‘) create_time = models.DateTimeField(verbose_name=‘创建时间‘, auto_now_add=True) #当前时间 blog = models.OneToOneField(to=‘Blog‘, to_field=‘nid‘, null=True, on_delete=models.CASCADE) def __str__(self): return self.username class Blog(models.Model): """用户站点""" nid = models.AutoField(primary_key=True) title = models.CharField(verbose_name=‘个人博客标题‘, max_length=64) site_name = models.CharField(verbose_name=‘站点名称‘, max_length=64) theme = models.CharField(verbose_name=‘博客主题‘, max_length=32) def __str__(self): return self.title class Tag(models.Model): """博客标签""" nid = models.AutoField(primary_key=True) title = models.CharField(verbose_name=‘标签名称‘, max_length=32) blog = models.ForeignKey(verbose_name=‘所属博客‘, to=‘Blog‘, to_field=‘nid‘, on_delete=models.CASCADE) def __str__(self): return self.title class Category(models.Model): """博主文章分类""" nid = models.AutoField(primary_key=True) title = models.CharField(verbose_name=‘分类标题‘, max_length=32) blog = models.ForeignKey(verbose_name=‘所属博客‘, to=‘Blog‘, to_field=‘nid‘, on_delete=models.CASCADE) def __str__(self): return self.title class Article(models.Model): """博客文章""" nid = models.AutoField(primary_key=True) title = models.CharField(verbose_name=‘文章标题‘, max_length=50) desc = models.CharField(verbose_name=‘文章秒速‘, max_length=255) create_time = models.DateTimeField(verbose_name=‘创建时间‘, auto_now_add=True) content = models.TextField() comment_count = models.IntegerField(default=0) #评论数默认为0 up_count = models.IntegerField(default=0) down_count = models.IntegerField(default=0) user = models.ForeignKey(verbose_name=‘作者‘, to=‘UserInfo‘, to_field=‘nid‘, on_delete=models.CASCADE) category = models.ForeignKey(to=‘Category‘, to_field=‘nid‘, null=True, on_delete=models.CASCADE) tag = models.ManyToManyField( to=‘Tag‘, through=‘Article2Tag‘, through_fields=(‘article‘, ‘tag‘)) #创建中间模型,自己生成多对多的对应关系表 def __str__(self): return self.title class Article2Tag(models.Model): nid = models.AutoField(primary_key=True) article = models.ForeignKey(verbose_name=‘文章‘, to=‘Article‘, to_field=‘nid‘, on_delete=models.CASCADE) tag = models.ForeignKey(verbose_name=‘标签‘, to=‘Tag‘, to_field=‘nid‘, on_delete=models.CASCADE) class Meta: # 联合唯一 ,字段不能重复 unique_together = [ (‘article‘, ‘tag‘), ] def __str__(self): v = self.article.title + ‘---‘ + self.tag.title return v class ArticleUpDown(models.Model): """点赞表,用户1对文章2进行了T操作""" nid = models.AutoField(primary_key=True) user = models.ForeignKey(to=‘UserInfo‘, to_field=‘nid‘, null=True, on_delete=models.CASCADE) article = models.ForeignKey(to=‘Article‘, to_field=‘nid‘, null=True, on_delete=models.CASCADE) is_up = models.BooleanField(default=True) class Meta: # 联合唯一 ,字段不能重复 unique_together = [ (‘article‘, ‘user‘), ] class Comment(models.Model): """评论表""" nid = models.AutoField(primary_key=True) content = models.CharField(verbose_name=‘评论内容‘, max_length=255) create_time = models.DateTimeField(verbose_name=‘创建时间‘, auto_now_add=True) # 当前时间 article = models.ForeignKey(verbose_name=‘评论文章‘, to=‘Article‘,to_field=‘nid‘, on_delete=models.CASCADE) user = models.ForeignKey(to=‘UserInfo‘, to_field=‘nid‘, null=True, on_delete=models.CASCADE) parent_comment = models.ForeignKey(‘self‘,null=True,on_delete=models.CASCADE) #建立评论树 def __str__(self): return self.content
2、重点内容:
想在session自建表auth-user表中增加字段,需要继承AbstractUser来实现,并且需要在项目配置文件中加入 AUTH_USER_MODEL = ‘应用名.表名‘
评论表表中的树结构
原文地址:https://www.cnblogs.com/zhuzhiwei-2019/p/10733547.html
时间: 2024-11-08 17:01:27