django 简单会议室预约（4）

来源：互联网发布：水果店管理系统源码编辑：程序博客网时间：2024/04/30 00:19

基本的配置已经完成了，来看看最重要的views.py

先看看简单的注册登录功能，在django里有一个专门的模块用来验证用户信息；所以只需要调用就好了：

#-*-coding:utf-8 -*-from django.shortcuts import  render_to_responsefrom django.template import  RequestContextfrom django.http import HttpResponseRedirectfrom django.contrib.auth.models import User #django 自带后台管理模块from django.contrib import authfrom models import *#主页def index(req):username=req.session.get('username', '')content = {'active_menu': 'homepage', 'user': username}return render_to_response('index.html', content)#将数据返回到前台#注册def regist(req): if req.session.get('username', ''):#获取session用来判断用户是否登录 return HttpResponseRedirect('/')status=""if req.POST:username = req.POST.get("username","") #从前台获得用户注册信息，判断，存入数据库if User.objects.filter(username=username):status = "user_exist"else:password=req.POST.get("password","")repassword = req.POST.get("repassword","")if password!=repassword:status = "re_err"else:newuser=User.objects.create_user(username=username,password=password)newuser.save()   new_myuser = MyUser(user=newuser,phone=req.POST.get("phone"))  new_myuser.save()status = "success"return HttpResponseRedirect("/login/")return render_to_response("regist.html",{"active_menu":"hompage","status":status,"user":""},context_instance=RequestContext(req))#登录def login(req):if req.session.get('username', ''):return HttpResponseRedirect('/')status=""if req.POST:username=req.POST.get("username","")password=req.POST.get("password","")user = auth.authenticate(username=username,password=password) if user is not None:auth.login(req,user)req.session["username"]=username #保存登录会话return HttpResponseRedirect('/')else:status="not_exist_or_passwd_err"return render_to_response("login.html",{"status":status},context_instance=RequestContext(req))#退出登录def logout(req):auth.logout(req)return HttpResponseRedirect('/')

使用filter()方法来过滤数据，判断用户名是否在数据库中：

User.objects.filter(username=username)

相当于SQL语句：

SELECT username FROM auth_user WHERE username=username;

使用create_user辅助函数创建用户，只用了username和password两个属性；这里User和MyUser是一对一的关系，用户名和密码直接调用，然后加上用户电话号码

User.objects.create_user(username=username,password=password)  MyUser(user=newuser,phone=req.POST.get("phone"))

以上只是表示准备向数据库存的数据，完了后要用.save（）才能存到数据库里

相当于SQL语句：

INSERT INTO auth_user(username,password) VALUES ("username","password");

auth的authenticate()函数验证用户名和密码，不用再查数据库：

auth.authenticate(username=username,password=password)    auth.login(req,user)              #auth的login()函数是登录auth.logout(req)                     #auth的logout()函数是注销

到此，一个简单的注册登录就完成了。

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