BBS-登录

from django.db import models# Create your models here.
from django.contrib.auth.models import AbstractUser#用户
class UserInfo(AbstractUser):nid=models.AutoField(primary_key=True)telephone=models.CharField(max_length=32)avatar=models.FileField(upload_to='avatar/',default='avatar/default.png')create_data=models.DateTimeField(auto_now_add=True)blog=models.OneToOneField(to='Blog',to_field='nid',on_delete=models.CASCADE,null=True)#站点(与用户一对一关系，不同用户所属的个人网站)
class Blog(models.Model):nid=models.AutoField(primary_key=True)#博客名称title=models.CharField(max_length=32)#站点的名称site_name=models.CharField(max_length=32)#博客主题样式theme=models.CharField(max_length=32)#分类：自己创建的分类
class Category(models.Model):nid=models.AutoField(primary_key=True)#分类名称title=models.CharField(max_length=32)#所属博客: 这个分类属于哪个站点blog=models.ForeignKey(to='Blog',to_field='nid',on_delete=models.CASCADE,null=True)#标签
class Tag(models.Model):nid=models.AutoField(primary_key=True)# 标签名称title=models.CharField(max_length=32)# 所属博客,跟Blog一对多 这个标签属于哪个站点blog=models.ForeignKey(to='Blog',to_field='nid',on_delete=models.CASCADE,null=True)#文章
class Article(models.Model):nid=models.AutoField(primary_key=True)# 文章标题title=models.CharField(max_length=32)# 文章摘要desc=models.CharField(max_length=255)# 文章内容，存大文本content=models.TextField()#创建时间create_date=models.DateTimeField(auto_now_add=True)#跟user一对多，一个用户可以创建多篇文章user=models.ForeignKey(to='UserInfo',to_field='nid',null=True)#跟Category分类表一对多：一个分类对应多篇文章category=models.ForeignKey(to='Category',to_field='nid',null=True)#文章标题:与标签多对多关系,通过through指定自己写的中间表#手动创建第三张表tag=models.ManyToManyField(to='Tag',through='Article2Tag',through_fields=('article','tag'))#文章与标签多对多关系表
class Article2Tag(models.Model):nid=models.AutoField(primary_key=True)#文章idarticle=models.ForeignKey(to='Article',to_field='nid',null=True)#标签idtag=models.ForeignKey(to='Tag',to_field='nid',null=True)class ArticleUpDown(models.Model):nid=models.AutoField(primary_key=True)# 点赞/点踩 的用户user=models.ForeignKey(to='UserInfo',to_field='nid',null=True)# 点赞/点踩 的文章article=models.ForeignKey(to='Article',to_field='nid',null=True)# 赞还是踩is_up=models.BooleanField(default=True)#评论
class Comment(models.Model):nid=models.AutoField(primary_key=True)# 评论的用户：一个用户可以有多条评论user = models.ForeignKey(to='UserInfo', to_field='nid')#评论的文章：一个文章可以对应多条评论article=models.ForeignKey(to='Article',to_field='nid')# 评论的内容comm = models.CharField(max_length=255)# 评论的时间create_date = models.DateTimeField(auto_now_add=True)#因为可能会有自评论的情况：例如回复，所有要在评论表本身建立自关联# parent_comment=models.ForeignKey(to='Comment',to_field='nid') #2种写法，例如comment# 父评论的id，自关联，防止写脏数据parent_comment = models.ForeignKey(to='self', to_field='nid', null=True)

models.py

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><link rel="stylesheet" href="/static/bootstrap-3.3.7-dist/bootstrap-3.3.7-dist/css/bootstrap.min.css"><script src="/static/jquery-3.3.1.js"></script><title>博客园登录</title>
</head>
<body><div class="container-fluid"><div class="row"><div class="col-md-6 col-md-offset-3">{% csrf_token %}<div class="form-group"><label for="id_name">用户名</label><input type="text" id="id_name" class="form-control"></div><div class="form-group"><label for="id_pwd">密码</label><input type="password" id="id_pwd" class="form-control"></div><div class="form-group"><label for="valid_code">验证码</label><div class="row"><div class="col-md-6"><input type="text" id="valid_code" class="form-control"></div><div class="col-md-6"><!--img标签里面可以，写一个图片地址，也可以写二进制--><img src="/get_code/" alt="" id="cod_img"></div></div></div><div><button class="btn btn-danger " id="submit_btn">提交</button><span class="error"></span></div></div></div></div>
<script><!--给验证码图片绑定点击事件，实现点击验证码能够获取新的验证码-->$('#cod_img').click(function () {$('#cod_img')[0].src=$('#cod_img')[0].src+'?'})$('#submit_btn').click(function () {$.ajax({url:'',type:'post',data:{'name':$('#id_name').val(),'pwd':$('#id_pwd').val(),'valid_code':$('#valid_code').val(),'csrfmiddlewaretoken':"{{ csrf_token }}",},success:function(data){<!--如果成功打印返回的back_msg={'user':None,'msg':None}字典类型-->if (data.user){//data是个object对象
                    alert(data.msg) //登录成功
                }else {$('.error').text(data.msg)setTimeout(function () {$('.error').text('')},1000)}}})})</script></body>
</html>