I resubmit this article due to omitting the subject
---------- Forwarded message ----------
From: Young Gyu Park <[EMAIL PROTECTED]>
Date: Jun 15, 2007 12:43 PM
Subject:
To: django-users@googlegroups.com
class Category(models.Model):
> name = models.CharField(maxlength=20)
>
> parent = models.ForeignKey('self', null=True, related_name='child_set')
>
> def __str__(self):
> return self.name
>
>
I try to embody this Model. But In the admin page, I want to see the whole
category path, I mean there is a category which has two parent category.
I want to see like this
A -> B -> C
To do this I try to modify __str__ function by recursive function
To get the parent category I need to call the filter function, But the
python told me
Traceback (most recent call last):
> File
> "/usr/pkg/lib/python2.4/site-packages/Django-0.95.1-py2.4.egg/django/template/__init__.py"
> in render_node
> 706. result = node.render(context)
> File
> "/usr/pkg/lib/python2.4/site-packages/Django-0.95.1-py2.4.egg/django/template/__init__.py"
> in render
> 862. dict = func(*args)
> File
> "/usr/pkg/lib/python2.4/site-packages/Django-0.95.1-py2.4.egg/django/contrib/admin/templatetags/admin_list.py"
> in result_list
> 182. return {'cl': cl,
> File
> "/usr/pkg/lib/python2.4/site-packages/Django-0.95.1-py2.4.egg/django/contrib/admin/templatetags/admin_list.py"
> in results
> 179. yield list(items_for_result(cl,res))
> File
> "/usr/pkg/lib/python2.4/site-packages/Django-0.95.1-py2.4.egg/django/contrib/admin/templatetags/admin_list.py"
> in items_for_result
> 132. result_repr = escape(getattr(result, f.name))
> File
> "/usr/pkg/lib/python2.4/site-packages/Django-0.95.1-py2.4.egg/django/utils/html.py"
> in escape
> 27. html = str(html)
> File "/data/webroot/django-projects/ggum/shop/models.py" in __str__
> 79. return self.test_path()
> File "/data/webroot/django-projects/ggum/shop/models.py" in test_path
> 75. self.objects.get_query_set().filter(name="aaa")
> File
> "/usr/pkg/lib/python2.4/site-packages/Django-0.95.1-py2.4.egg/django/db/models/manager.py"
> in __get__
> 110. raise AttributeError, "Manager isn't accessible via %s instances" %
> type.__name__
>
>
which mean I can't access the Manage via the Model.
So I want to know there is any other way to get the model data?????
Big appreciating django framework
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