file_field_callable_default.txt

Internal Server Error: /admin/ogq_image/author/add/
Traceback (most recent call last):
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 132, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/contrib/admin/options.py", line 616, in wrapper
    return self.admin_site.admin_view(view)(*args, **kwargs)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/utils/decorators.py", line 110, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/views/decorators/cache.py", line 57, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/contrib/admin/sites.py", line 233, in inner
    return view(request, *args, **kwargs)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1516, in add_view
    return self.changeform_view(request, None, form_url, extra_context)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/utils/decorators.py", line 34, in _wrapper
    return bound_func(*args, **kwargs)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/utils/decorators.py", line 110, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/utils/decorators.py", line 30, in bound_func
    return func.__get__(self, type(self))(*args2, **kwargs2)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/utils/decorators.py", line 145, in inner
    return func(*args, **kwargs)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1467, in changeform_view
    self.save_model(request, new_object, form, not add)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1078, in save_model
    obj.save()
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/db/models/base.py", line 710, in save
    force_update=force_update, update_fields=update_fields)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/db/models/base.py", line 738, in save_base
    updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/db/models/base.py", line 822, in _save_table
    result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/db/models/base.py", line 861, in _do_insert
    using=using, raw=raw)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/db/models/manager.py", line 127, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/db/models/query.py", line 920, in _insert
    return query.get_compiler(using=using).execute_sql(return_id)
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 973, in execute_sql
    for sql, params in self.as_sql():
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 931, in as_sql
    for obj in self.query.objs
  File "/var/virtualenv/backgrounds/local/lib/python2.7/site-packages/django/db/models/fields/files.py", line 313, in pre_save
    if file and not file._committed:
AttributeError: 'function' object has no attribute '_committed'