基于Django编写blog网站

1. 数据库的创建

   from django.db import models
   from blog import settings
   # Create your models here.
   
   
   
   from django.contrib.auth.models import AbstractUser
   
   class UserInfo(AbstractUser):
       '''
       用户信息表
       继承AbstractUser 可以直接使用相当于扩充django默认的user可以使用django内置的功能
       需要导入   from django.contrib.auth.models import AbstractUser
   
       并且需要在setting中添加设置  AUTH_USER_MODEL='app01.UserInfo'  告诉django你自定义的用户表app名字.表名
   
       '''
       nid=models.AutoField(primary_key=True) #主键
       phone=models.CharField(verbose_name='手机号',max_length=11,null=True,unique=True) #手机号unique唯一
       avatar=models.FileField(verbose_name='头像',upload_to=settings.UPLOAD_TO,default=settings.DEFAULT_AVATAR)#头像
       create_time=models.DateTimeField(verbose_name='创建时间',auto_now_add=True)
   
       blog=models.OneToOneField(to='Blog',to_field='nid',null=True,on_delete=models.SET_NULL)#关联博客表，一对一
   
   
   
   class Blog(models.Model):
       '''
       博客信息表
       '''
       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,default='default.css')
       def __str__(self):
           return self.title
   
   
   class Category(models.Model):
       '''
       博主个人文章分类表
       '''
       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)
   
   
   
   class Tag(models.Model):
   
       '''
       标签表
   
       '''
       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)
   
   
   class Article(models.Model):
       '''
       文章表
       '''
   
       nid=models.AutoField(primary_key=True)
       title=models.CharField(max_length=50,verbose_name='文章标题')
       desc=models.CharField(max_length=255,verbose_name='文章描述')
       create_time=models.DateTimeField(verbose_name='创建时间',auto_now_add=True)
   
   
       content = models.TextField(verbose_name='文章内容', )
       comment_count=models.IntegerField(verbose_name='评论数',default=0)
       up_count=models.IntegerField(verbose_name='点赞数',default=0)
       down_count=models.IntegerField(verbose_name='被踩数',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,verbose_name='文章分类',on_delete=models.SET_NULL)
   
       tags=models.ManyToManyField(
           verbose_name='文章关联标签',
           to='Tag',
           through='Article2Tag',
           through_fields=('article','tag'),
   
       )
       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:
           unique_together=[
               ('article','tag'),
           ]
   
   class ArticleUpDown(models.Model):
       '''
       点赞表
       '''
       nid=models.AutoField(primary_key=True)
       user=models.ForeignKey('UserInfo',null=True,on_delete=models.CASCADE)
       article=models.ForeignKey('Article',null=True,on_delete=models.CASCADE)
       is_up=models.BooleanField(default=True)
       class Meta:
           unique_together=[
               ('article','user'),
           ]
   
   
   class Comment(models.Model):
       '''
   
       评论表
       '''
       nid=models.AutoField(primary_key=True)
       article=models.ForeignKey(verbose_name='评论文章',to='Article',to_field='nid',on_delete=models.CASCADE)
       user=models.ForeignKey(verbose_name='评论者',to='UserInfo',to_field='nid',on_delete=models.CASCADE)
       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)
       parent_comment=models.ForeignKey('self',null=True,on_delete=models.CASCADE)

   创建数据库