classUser(models.Model):"""
    用户模型
    """name=models.CharField(max_length=128,unique=True)password=models.CharField(max_length=256)email=models.EmailField(unique=True)c_time=models.DateTimeField(auto_now_add=True)has_confirmed=models.BooleanField(default=False)def__str__(self):returnself.nameclassMeta:ordering=["-c_time"]verbose_name="用户"verbose_name_plural="用户"classConfirmString(models.Model):"""
    邮箱确认模型
    """code=models.CharField(max_length=256)user=models.OneToOneField('User',on_delete=models.CASCADE)c_time=models.DateTimeField(auto_now_add=True)def__str__(self):returnself.user.name+":   "+self.codeclassMeta:ordering=["-c_time"]verbose_name="确认码"verbose_name_plural="确认码"

classConfirmString(models.Model):"""
    邮箱确认模型
    """code=models.CharField(max_length=256)user=models.OneToOneField('User',on_delete=models.CASCADE)c_time=models.DateTimeField(auto_now_add=True)def__str__(self):returnself.user.name+":   "+self.codeclassMeta:ordering=["-c_time"]verbose_name="确认码"verbose_name_plural="确认码"

fromcaptcha.viewsimportcaptcha_refresh# 验证码刷新功能，captcha_refresh为captcha.views内置方法，不需要我们单独写urlpatterns=[...path('refresh/',captcha_refresh),# 点击可以刷新验证码]

{#刷新验证码的脚本，放到body部分的最后面即可#}
<script>$('.captcha').click(function(){$.getJSON('/captcha/refresh/',function(result){$('.captcha').attr('src',result['image_url']);$('#id_captcha_0').val(result['key']);});});</script>

classModelWithFileField(models.Model):tmp_file=models.FileField(upload_to='./FileUpload/')# 上传目录为 FileUploadfile_user=models.ForeignKey(User,on_delete=models.CASCADE,null=True)'''
    值得注意的一点是,FileUpload中已经存在相同文件名的文件时,会对上传文件的文件名重命名 
    如 1.png 转为 1_fIZVhN3.png
    且存储的文件为 1_fIZVhN3.png
    '''c_time=models.DateTimeField(auto_now_add=True)def__str__(self):returnself.tmp_file.nameclassMeta:ordering=["-c_time"]verbose_name="文件"verbose_name_plural="文件"# 添加装饰器@receiver(post_delete,sender=ModelWithFileField)defdelete_upload_files(sender,instance,**kwargs):files=getattr(instance,'tmp_file')ifnotfiles:returnfname=os.path.join(settings.MEDIA_ROOT,str(files))ifos.path.isfile(fname):os.remove(fname)

defupload_file(request):"""
    上传文件
    :param request:
    :return:
    """ifnotrequest.session.get('is_login',None):# 不允许重复登录returnredirect('/user/index/')ifrequest.method=='POST':form=UploadFileForm(request.POST,request.FILES)ifform.is_valid():user_id=request.session.get('user_id')ifuser_id:tmp_user=models.User.objects.get(id=user_id)instance=ModelWithFileField(tmp_file=request.FILES['file'],file_user=tmp_user)instance.save()message="上传成功!\n存储的文件名为:\n"+instance.tmp_file.namereturnrender(request,'job/upload.html',{'message_success':message})else:returnrender(request,'job/upload.html',{'message_warning':"上传失败"})else:form=UploadFileForm()returnrender(request,'job/upload.html',{'form':form})