#23616: 'GenericRel' object has no attribute 'get_related_field'
-------------------------------------+-------------------------------------
Reporter: ranjur | Owner: nobody
Type: Bug | Status: new
Component: | Version: 1.7
contrib.contenttypes | Resolution:
Severity: Normal | Triage Stage:
Keywords: GenericRel, django | Unreviewed
1.7, admin, get_related_field, | Needs documentation: 0
GenericRelation | Patch needs improvement: 0
Has patch: 0 | UI/UX: 0
Needs tests: 0 |
Easy pickings: 0 |
-------------------------------------+-------------------------------------
Changes (by ranjur):
* needs_better_patch: => 0
* needs_tests: => 0
* needs_docs: => 0
Old description:
> I have a model:
> #models.py
> class TaggedItem(models.Model):
> tag = models.SlugField()
> content_type = models.ForeignKey(ContentType)
> object_id = models.PositiveIntegerField()
> content_object = GenericForeignKey('content_type', 'object_id')
>
> def __str__(self): # __unicode__ on Python 2
> return self.tag
>
> And model with GenericRelation
> class Bookmark(models.Model):
> url = models.URLField()
> tags = GenericRelation(TaggedItem)
>
> #admin.py
> class BookmarkAdmin(admin.ModelAdmin):
> list_filter = ('tags__tag')
>
> admin.site.register(models.Bookmark, BookmarkAdmin)
>
> It will list all the `tag` in the filter, but when I try to filter it
> throws error `'GenericRel' object has no attribute 'get_related_field'`
>
> Full stack:
> {{{
> AttributeError at /admin/app/bookmark
> 'GenericRel' object has no attribute 'get_related_field'
> Request Method: GET
> Request URL:
> http://127.0.0.1:8000/admin/app/bookmark/?q=&tags__tag__id__exact=1
> Django Version: 1.7
> Exception Type: AttributeError
> Exception Value:
> 'GenericRel' object has no attribute 'get_related_field'
> Exception Location: /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/contrib/admin/options.py in lookup_allowed, line 416
> Python Executable: /home/user/virtual/test/bin/python
> Python Version: 2.7.6
> Python Path:
> ['/home/user/projects/ptest',
> '/home/user/virtual/test/local/lib/python2.7/site-
> packages/Pillow-2.5.1-py2.7-linux-x86_64.egg',
> '/home/user/virtual/test/src/cmsplugin-bootstrap-carousel',
> '/home/user/virtual/test/src/cmsplugin-contact',
> '/home/user/virtual/test/src/django-faq',
> '/home/user/virtual/test/src/python-varnish',
> '/home/user/virtual/test/src/cmsplugin-text-ng',
> '/home/user/virtual/test/src/django-balancer',
> '/home/user/virtual/test/src/django-nose',
> '/home/user/virtual/test/lib/python2.7',
> '/home/user/virtual/test/lib/python2.7/plat-x86_64-linux-gnu',
> '/home/user/virtual/test/lib/python2.7/lib-tk',
> '/home/user/virtual/test/lib/python2.7/lib-old',
> '/home/user/virtual/test/lib/python2.7/lib-dynload',
> '/usr/lib/python2.7',
> '/usr/lib/python2.7/plat-x86_64-linux-gnu',
> '/usr/lib/python2.7/lib-tk',
> '/home/user/virtual/test/local/lib/python2.7/site-packages',
> '/home/user/virtual/test/local/lib/python2.7/site-packages/PIL',
> '/home/user/virtual/test/local/lib/python2.7/site-
> packages/newrelic-2.28.0.26',
> '/home/user/projects/y1/test']
> Server time: Wed, 8 Oct 2014 13:28:38 +0800
> Traceback Switch to copy-and-paste view
>
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/core/handlers/base.py in get_response
> response = wrapped_callback(request, *callback_args,
> **callback_kwargs) ...
> ▶ Local vars
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/contrib/admin/options.py in wrapper
> return self.admin_site.admin_view(view)(*args, **kwargs)
> ...
> ▶ Local vars
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/utils/decorators.py in _wrapped_view
> response = view_func(request, *args, **kwargs) ...
> ▶ Local vars
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/views/decorators/cache.py in _wrapped_view_func
> response = view_func(request, *args, **kwargs) ...
> ▶ Local vars
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/contrib/admin/sites.py in inner
> return view(request, *args, **kwargs) ...
> ▶ Local vars
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/utils/decorators.py in _wrapper
> return bound_func(*args, **kwargs) ...
> ▶ Local vars
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/utils/decorators.py in _wrapped_view
> response = view_func(request, *args, **kwargs) ...
> ▶ Local vars
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/utils/decorators.py in bound_func
> return func.__get__(self, type(self))(*args2, **kwargs2)
> ...
> ▶ Local vars
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/contrib/admin/options.py in changelist_view
> self.list_max_show_all, self.list_editable, self) ...
> ▶ Local vars
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/contrib/admin/views/main.py in __init__
> self.queryset = self.get_queryset(request) ...
> ▶ Local vars
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/contrib/admin/views/main.py in get_queryset
> filters_use_distinct) = self.get_filters(request) ...
> ▶ Local vars
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/contrib/admin/views/main.py in get_filters
> if not self.model_admin.lookup_allowed(key, value): ...
> ▶ Local vars
> /home/user/virtual/test/local/lib/python2.7/site-
> packages/django/contrib/admin/options.py in lookup_allowed
> rel_name = field.rel.get_related_field().name ...
> ▶ Local vars
>
> }}}
New description:
I have a model:
#models.py
{{{
class TaggedItem(models.Model):
tag = models.SlugField()
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
content_object = GenericForeignKey('content_type', 'object_id')
def __str__(self): # __unicode__ on Python 2
return self.tag
# And model with GenericRelation
class Bookmark(models.Model):
url = models.URLField()
tags = GenericRelation(TaggedItem)
}}}
#admin.py
{{{
class BookmarkAdmin(admin.ModelAdmin):
list_filter = ('tags__tag')
admin.site.register(models.Bookmark, BookmarkAdmin)
}}}
It will list all the `tag` in the filter, but when I try to filter it
throws error `'GenericRel' object has no attribute 'get_related_field'`
Full stack:
{{{
AttributeError at /admin/app/bookmark
'GenericRel' object has no attribute 'get_related_field'
Request Method: GET
Request URL:
http://127.0.0.1:8000/admin/app/bookmark/?q=&tags__tag__id__exact=1
Django Version: 1.7
Exception Type: AttributeError
Exception Value:
'GenericRel' object has no attribute 'get_related_field'
Exception Location: /home/user/virtual/test/local/lib/python2.7/site-
packages/django/contrib/admin/options.py in lookup_allowed, line 416
Python Executable: /home/user/virtual/test/bin/python
Python Version: 2.7.6
Python Path:
['/home/user/projects/ptest',
'/home/user/virtual/test/local/lib/python2.7/site-
packages/Pillow-2.5.1-py2.7-linux-x86_64.egg',
'/home/user/virtual/test/src/cmsplugin-bootstrap-carousel',
'/home/user/virtual/test/src/cmsplugin-contact',
'/home/user/virtual/test/src/django-faq',
'/home/user/virtual/test/src/python-varnish',
'/home/user/virtual/test/src/cmsplugin-text-ng',
'/home/user/virtual/test/src/django-balancer',
'/home/user/virtual/test/src/django-nose',
'/home/user/virtual/test/lib/python2.7',
'/home/user/virtual/test/lib/python2.7/plat-x86_64-linux-gnu',
'/home/user/virtual/test/lib/python2.7/lib-tk',
'/home/user/virtual/test/lib/python2.7/lib-old',
'/home/user/virtual/test/lib/python2.7/lib-dynload',
'/usr/lib/python2.7',
'/usr/lib/python2.7/plat-x86_64-linux-gnu',
'/usr/lib/python2.7/lib-tk',
'/home/user/virtual/test/local/lib/python2.7/site-packages',
'/home/user/virtual/test/local/lib/python2.7/site-packages/PIL',
'/home/user/virtual/test/local/lib/python2.7/site-
packages/newrelic-2.28.0.26',
'/home/user/projects/y1/test']
Server time: Wed, 8 Oct 2014 13:28:38 +0800
Traceback Switch to copy-and-paste view
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/core/handlers/base.py in get_response
response = wrapped_callback(request, *callback_args,
**callback_kwargs) ...
▶ Local vars
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/contrib/admin/options.py in wrapper
return self.admin_site.admin_view(view)(*args, **kwargs)
...
▶ Local vars
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/utils/decorators.py in _wrapped_view
response = view_func(request, *args, **kwargs) ...
▶ Local vars
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/views/decorators/cache.py in _wrapped_view_func
response = view_func(request, *args, **kwargs) ...
▶ Local vars
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/contrib/admin/sites.py in inner
return view(request, *args, **kwargs) ...
▶ Local vars
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/utils/decorators.py in _wrapper
return bound_func(*args, **kwargs) ...
▶ Local vars
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/utils/decorators.py in _wrapped_view
response = view_func(request, *args, **kwargs) ...
▶ Local vars
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/utils/decorators.py in bound_func
return func.__get__(self, type(self))(*args2, **kwargs2)
...
▶ Local vars
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/contrib/admin/options.py in changelist_view
self.list_max_show_all, self.list_editable, self) ...
▶ Local vars
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/contrib/admin/views/main.py in __init__
self.queryset = self.get_queryset(request) ...
▶ Local vars
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/contrib/admin/views/main.py in get_queryset
filters_use_distinct) = self.get_filters(request) ...
▶ Local vars
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/contrib/admin/views/main.py in get_filters
if not self.model_admin.lookup_allowed(key, value): ...
▶ Local vars
/home/user/virtual/test/local/lib/python2.7/site-
packages/django/contrib/admin/options.py in lookup_allowed
rel_name = field.rel.get_related_field().name ...
▶ Local vars
}}}
--
--
Ticket URL: <https://code.djangoproject.com/ticket/23616#comment:1>
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