django项目：实现一个完整的博客功能（1）

blog开发流程

1.分析博客页面：

1）完成网站的模块划分

2）从模板页面中抽象出父模板，完成模板页面继承

3）分析模块当中的数据模型，确定模型类当中的字段

2.分析博客实现的功能：

1）用户模块的注册登录，增删改查，模型类的继承，form验证，

2）一篇文章有一个作者，多个标签，一种类型，添加评论，浏览量，文章点赞

3）文章排行榜，归档

4）标签云

5）文章分页, 文章详情页

6）添加删除文章

#调用django内部用户模块，相关字段都封装好，可以扩展补充

from django.db import models
from datetime import datetime
from django.contrib.auth.models import AbstractUser

# Create your models here.

class UserProfile(AbstractUser):
"""
用户模块扩展,调用django内部模型类继承
"""
add_time = models.DateTimeField(default=datetime.now, verbose_name='添加时间')
nick_name = models.CharField(max_length=10, verbose_name='昵称', blank=True, null=True)

def __str__(self):
return self.username

class Meta:
verbose_name = '用户信息'
verbose_name_plural = verbose_name

from django.conf.urls import url
from .views import user_register, user_login, user_logout

urlpatterns = [
url(r'^user_register/$', user_register, name='user_register'),
url(r'^user_login/$', user_login, name='user_login'),
url(r'^user_logout/$', user_logout, name='user_logout'),
]

from django.shortcuts import render, redirect
from .models import UserProfile
from django.core.urlresolvers import reverse
from django.contrib.auth import authenticate, login, logout
from .forms import UserRegisterForm, UserLoginForm

def user_register(request):
"""
用户注册模块
添加了form表单验证
"""
if request.method == 'GET':
return render(request, 'reg.html')
else:
# 实例form类，用来验证用户提交的数据
user_register_form = UserRegisterForm(request.POST)
if user_register_form.is_valid():  # 返回值为True或False
username = user_register_form.cleaned_data['username']
password = user_register_form.cleaned_data['password']
password1 = user_register_form.cleaned_data['password1']

user = UserProfile.objects.filter(username=username)
if user:
return render(request, 'reg.html', {
'mag': '账号已存在'
})
else:
if password1 == password:
a = UserProfile()
a.password = password
a.username = username
# 内部函数自动加密功能
a.set_password(password)
a.save()
return redirect(reverse('users:user_login'))
else:
return render(request, 'reg.html', {
'msg': '密码不一致'
})
else:
return render(request, 'reg.html', {
'user_register_form': user_register_form
})

def user_login(request):
"""
用户登录模块,调用django内部函数login,封装好了session功能

"""
if request.method == 'GET':
return render(request, 'login.html')
else:
user_login_form = UserLoginForm(request.POST)
if user_login_form.is_valid():
username = user_login_form.cleaned_data['username']
password = user_login_form.cleaned_data['password']

user = authenticate(username=username, password=password)
if user:
login(request, user)
return redirect(reverse('index'))

else:
return render(request, 'login.html', {
'msg': '用户名或者密码错误！',
'user_login_form': user_login_form
})
else:
pass

def user_logout(request):
"""
用户退出模块, 调用django内部函数logout

"""
logout(request)
return render(request, 'index.html')

from django import forms

class UserRegisterForm(forms.Form):
"""form表单注册验证"""
username = forms.CharField(max_length=20, min_length=6, required=True, error_messages={'invalid': '长度最大20，最小6'},)
email = forms.EmailField(error_messages={
# 自定义验证字段
'invalid': '格式不对,最大长度20,最小6'
}, required=False)
url = forms.URLField(error_messages={
'invalid': '格式不对,最大长度20,最小6'
}, required=False)
password = forms.CharField(max_length=20, min_length=6, required=True)
password1 = forms.CharField(max_length=20, min_length=6, required=True)

抽象出父模板，设置子模板继承，避免每个页面代码的重复

子模板代码的变化单独一个页面