Python Django |由于对象没有属性'，使用表单上载图像不工作；清理数据'；

我想在数据库中上载一个in图像，但在阅读了大量教程后，由于打印表单后出现此错误，此代码无法工作。错误：

**AttributeError at /upload**
'ImageUploadForm' object has no attribute 'cleaned_data'

以下是我的代码：
型号。py:

class room_type(models.Model):
    id = models.IntegerField(primary_key = True)
    code = models.CharField(max_length = 40)
    name = models.CharField(max_length= 40 )
    title = models.CharField(max_length = 40)
    english_title = models.CharField(max_length=40)
    capacity = models.IntegerField()
    extra_capacity = models.IntegerField()
    description = models.CharField(max_length=255)
    today_price = models.IntegerField()

    class Meta:
        db_table = 'room_types'
    def __unicode__(self):
        return u'%d' % (self.id)

class attachment(models.Model):

    id = models.IntegerField(primary_key = True)
    image = models.ImageField(upload_to="/home/iman/Desktop/code/hotel/rooms/attachments")

    #foreign key : a room has many images
    rt_id = models.ForeignKey(room_type)
    class Meta:
        db_table = 'attachments'
    def __unicode__(self):
        return u'%d' % (self.id)

  class ImageUploadForm(forms.Form):
        image = forms.ImageField()
        class Meta:
        model = attachment
        fields= ['image']

forms.py:

class room_type(models.Model):
    id = models.IntegerField(primary_key = True)
    code = models.CharField(max_length = 40)
    name = models.CharField(max_length= 40 )
    title = models.CharField(max_length = 40)
    english_title = models.CharField(max_length=40)
    capacity = models.IntegerField()
    extra_capacity = models.IntegerField()
    description = models.CharField(max_length=255)
    today_price = models.IntegerField()

    class Meta:
        db_table = 'room_types'
    def __unicode__(self):
        return u'%d' % (self.id)

class attachment(models.Model):

    id = models.IntegerField(primary_key = True)
    image = models.ImageField(upload_to="/home/iman/Desktop/code/hotel/rooms/attachments")

    #foreign key : a room has many images
    rt_id = models.ForeignKey(room_type)
    class Meta:
        db_table = 'attachments'
    def __unicode__(self):
        return u'%d' % (self.id)

  class ImageUploadForm(forms.Form):
        image = forms.ImageField()
        class Meta:
        model = attachment
        fields= ['image']

视图。py:

def upload(request):
    if request.method == 'POST':
        print"##########"
        form = ImageUploadForm(request.POST,request.FILES)
        if form.is_valid():
            new_attachment = attachment()
            new_attachment.image= form.cleaned_data['image']
            new_attachment.id = 1
            new_attachment.rt_id = 1
            new_attachment.save()
            print "))))))))"
            #return HttpResponse('image upload success')
        else:
            print form.is_valid() 
            print form.errors
            form = ImageUploadForm()
    return render(request,'index.html') 

index.html:

<div id="dialog" title="آپلود فایل">
            <form action="{% url 'upload' %}" class="dropzone" enctype="multipart/form-data"  id="my-awesome-dropzone" method="post"  >{% csrf_token %}
                  <input id="id_image" type="file" class="" name="image">
                  <input type="submit" value="Submit" />
            </form>
        </div>


> full traceback :  Environment:
> 
> 
> Request Method: POST Request URL: http://localhost:8000/upload
> 
> Django Version: 1.6.5 Python Version: 2.7.3 Installed Applications:
> ('django.contrib.admin',  'django.contrib.auth', 
> 'django.contrib.contenttypes',  'django.contrib.sessions', 
> 'django.contrib.messages',  'django.contrib.staticfiles',  'rooms')
> Installed Middleware:
> ('django.contrib.sessions.middleware.SessionMiddleware', 
> 'django.middleware.common.CommonMiddleware', 
> 'django.middleware.csrf.CsrfViewMiddleware', 
> 'django.contrib.auth.middleware.AuthenticationMiddleware', 
> 'django.contrib.messages.middleware.MessageMiddleware', 
> 'django.middleware.clickjacking.XFrameOptionsMiddleware')
> 
> 
> Traceback: File
> "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py"
> in get_response
>   112.                     response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/home/iman/Desktop/code/hotel/rooms/views.py" in upload
>   147.             print form.cleaned_data['image']
> 
> Exception Type: AttributeError at /upload Exception Value:
> 'ImageUploadForm' object has no attribute 'cleaned_data'

{%csrf_令牌%}
>完全回溯：环境：
> 
> 
>请求方法：发布请求URL:http://localhost:8000/upload
> 
>Django版本：1.6.5 Python版本：2.7.3已安装的应用程序：
>（'django.contrib.admin'、'django.contrib.auth'，
>'django.contrib.contenttypes'，'django.contrib.sessions'，
>'django.contrib.messages'、'django.contrib.staticfiles'、'rooms'）
>已安装的中间件：
>（'django.contrib.sessions.middleware.SessionMiddleware'，
>'django.middleware.common.CommonMiddleware'，
>“django.middleware.csrf.CsrfViewMiddleware”，
>'django.contrib.auth.middleware.AuthenticationMiddleware'，
>'django.contrib.messages.middleware.MessageMiddleware'，
>'django.middleware.clickjacking.xframeoptions中间件'）
> 
> 
>回溯：文件
>“/usr/local/lib/python2.7/dist packages/django/core/handlers/base.py”
>在得到答复时
>   112.                     response=upload中的wrapped_callback（请求，*callback_args，**callback_kwargs）文件“/home/iman/Desktop/code/hotel/rooms/views.py”
>   147.             打印表单。已清理的_数据['image']
> 
>异常类型：AttributeError at/上载异常值：
>“ImageUploadForm”对象没有“cleaned_data”属性

尝试删除

class Meta:
    model = attachment

---

html中的表单缺少表单字段。不，请看这个链接plz:和这个链接：我认为dropzone可以与ajax一起工作。。因此，您需要编写用csrf令牌处理ajax调用的逻辑。我不确定，但我认为在代码中的某个地方，您调用了

表单。在调用
表单之前清理了\u data
。\u valid（）

（在读取回溯后）表单中是否存在name=image的输入字段？