django实现同一个ip十分钟内只能注册一次的实例

class Ip(models.Model): ip=models.CharField(max_length=20) time=models.DateTimeField() class Meta:  verbose_name = u'访问时间'  verbose_name_plural = verbose_name def __str__(self):  return self.ip

from django.views.generic.base import Viewfrom blog.models import Ipclass RegView(View): def get(self,request):  ipreques = request.META['REMOTE_ADDR']  try:   ip_c=Ip.objects.get(ip=ipreques)   if ip_c :    if (datetime.datetime.now()-ip_c.time).total_seconds()<600:     return render(request, 'login.html', {'msg': u'10分钟内只能注册一次'})    ip_c.time=datetime.datetime.now()    ip_c.save()    return render(request, 'reg.html')  except Exception as e:   new=Ip()   new.ip=str(ipreques)   new.time=datetime.datetime.now()   new.save()   return render(request, 'reg.html') def post(self,request):  username=request.POST['username']  if len(getuser(username))<=0:   return render(request,'reg.html',{'msg':u'用户名应该是6-16组成'})  passwor1 = request.POST['password']  passwor2 = request.POST['password1']  shouj = request.POST['shouji']  if len(getPhoneNumFromFile(shouj))<=0:   return render(request, 'reg.html', {'msg':u'手机号格式是否正确'})  shouji = User.objects.filter(mobile__exact=shouj)  if shouji:   return render(request, 'reg.html', {'msg': u'手机号已经存在'})  youjian = request.POST['email']  if len(getMailAddFromFile(youjian))<=0:   return render(request, 'reg.html', {'msg': u'邮箱格式是否正确'})  use=User.objects.filter(username__exact=username)  if use:   return render(request,'reg.html',{'msg':u'用户名已经存在'})  else:   if passwor1==passwor2:    use1=User()    use1.username=username    use1.password=passwor1    use1.mobile=shouj    use1.email=youjian    use1.save()    return HttpResponseRedirect('login')   else:    return render(request,'reg.html',{'msg':u'请查看密码是否一致'})  return render(request,'reg.html')

url(r'^reg$', RegView.as_view(),name='reg'),