forms表單
#_*_coding:utf-8_*_
from django import forms
class regis(forms.Form):
username = forms.CharField(label=u'用戶名',min_length=4,max_length=20,error_messages={'required':u'用戶名不能為空哦','min_length':u'用戶名長度不能小於4位哦','max_length':u'用戶名長度不能大於20位哦'})
password = forms.CharField(label=u'密碼',min_length=6,max_length=256,widget=forms.PasswordInput,error_messages={'required':u'密碼不能為空哦','min_length':u'密碼長度不能小於6位哦'})
cpassword = forms.CharField(label=u'確認密碼',min_length=6, max_length=256, widget=forms.PasswordInput(attrs={'class':'form-control','placeholder':u'與上面密碼保持一致'}),error_messages={'required': u'密碼不能為空哦', 'min_length': u'密碼長度不能小於6位哦'})
models模型
#coding=utf-8
from django.db import models
class Userinfo(models.Model):
username = models.CharField(unique=True,max_length=20)
password = models.CharField(max_length=256)
def __unicode__(self):
return self.username
views視圖
#conding=utf-8
from django.shortcuts import render,redirect
from django.http import HttpResponse,Http404
from forms import *
from models import Userinfo
from hashlib import sha1
def register(request):
if request.method == 'POST':
form = regis(request.POST)
if form.is_valid():
user = form.cleaned_data['username']
pwd = form.cleaned_data['password']
cpwd = form.cleaned_data['cpassword']
# encryption
sh1 = sha1()
sh1.update(pwd.encode('utf-8'))
pwdd = sh1.hexdigest()
if pwd != cpwd:
return redirect('/')
Userinfo.objects.get_or_create(username=user,password=pwdd)
msg='user register success!'
return render(request,'info.html',{'msg':msg})
else:
error_msg = form.errors
return render(request, 'register.html', {'form': form, 'errors': error_msg})
else:
form = regis()
return render(request, 'register.html', {'form': form})
注意視圖的次序：這里的邏輯很重要
if request.method == 'POST':
form = regis(request.POST)
if form.is_valid():
使用表單進行數據提交時，不需要指定form的action，自動提交到展示頁面的視圖，切記注意
先判斷是提交信息還是普通訪問
如果不是提交信息，那么就打開注冊頁面同時攜帶表單對象，如果是post提交，就獲取forms表單regis提交上來的信息
再判斷表單內容是否符合格式要求，如果符合再判斷兩次輸入的密碼是否相等，如果相等則進行數據插入的操作，並且返回info.html頁面告知用戶注冊成功
如果表單內容不符合格式要求，則將forms表單中的非空，長度限制等信息返回到注冊頁面
注冊頁面register.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Login</title>
<style type="text/css">
.ff{
margin-top:300px;
margin-left:500px;
}
#log{
background-color:#ccc;
margin:0px auto;
}
</style>
</head>
<body>
<div id="log">
<form method="post" class="ff">
{% csrf_token %}
<table>
<tr><td>{{form.username.label_tag}}</td><td>{{form.username}}</td></tr>
<tr style="color:red"><td>{{errors.username}}</td></tr>
<tr><td>{{form.password.label_tag}}</td><td>{{form.password}}</td></tr>
<tr style="color:red"><td>{{errors.password}}</td></tr>
<tr><td>{{form.cpassword.label_tag}}</td><td>{{form.cpassword}}</td></tr>
<tr style="color:red"><td>{{errors.cpassword}}</td></tr>
<tr><td><input type="reset" value="重置"></td><td style="text-align:right"><input type="submit" value="提交"></td></tr>
</table>
</form>
</div>
</body>
</html>