Encountering a problem while moving to Django 1.1

Question

I'm trying to move from django 1.0.2 to 1.1 and I am getting the following error in one of my templates:

Request Method: GET

Request URL: http://localhost:8000/conserv/media_assets/vod/

Exception Type: TemplateSyntaxError

Exception Value: Caught an exception while rendering: 'NoneType'

object has no attribute 'label'

Exception Location:
/opt/local/Library/Frameworks/Python.framework/

Versions/2.6/lib/python2.6/site-packages/django/template/debug.py in

render_node, line 81

Python Executable:
/opt/local/Library/Frameworks/Python.framework/

Versions/2.6/Resources/Python.app/Contents/MacOS/Python

Python Version: 2.6.2

The error is on the line with the "for" tag.

My template:

{% for field in upload_image_form %} 
        <tr> 
                <td class="label"> 
                        {{field.name}} 
                </td> 
                <td> 
                        {{field}} 
                </td> 
        </tr> 
{% endfor %}

My form:

class UploadImageForm(ModelForm): 
    class Meta: 
        model = ImageUpload 
        fields = ('thumb')

My model:

class ImageUpload(models.Model): 
    thumb = models.FileField(upload_to='thumbs', blank=True, null=True)

Does anyone know how I can solve it?

Clément Clément · Accepted Answer · 2010-02-15T13:22:27

there's an error in your form class. The fields should be an iterable, but a tuple with one element should be written ('thumb',) instead of ('thumb'). Change your form class to :

class UploadImageForm(ModelForm):
  class Meta: 
    model = ImageUpload 
    fields = ('thumb',)

It should do the trick.

Encountering a problem while moving to Django 1.1

1 Answers