Python编程django实现同一个ip十分钟内只能注册一次

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')