1. Environment:
  2.  
  3. Request Method: POST
  4. Request URL: http://127.0.0.1:8000/testone/
  5. Django Version: 1.2.7
  6. Python Version: 2.7.2
  7. Installed Applications:
  8. ['django.contrib.auth',
  9. 'django.contrib.contenttypes',
  10. 'django.contrib.sessions',
  11. 'django.contrib.sites',
  12. 'django.contrib.markup',
  13. 'mydb.movies',
  14. 'django.contrib.admin',
  15. 'mydb.databrowse',
  16. 'registration',
  17. 'reversion',
  18. 'haystack',
  19. 'hitcount',
  20. 'debug_toolbar',
  21. 'chronograph',
  22. 'change_email',
  23. 'favorites',
  24. 'blog']
  25. Installed Middleware:
  26. ('django.middleware.common.CommonMiddleware',
  27. 'django.contrib.sessions.middleware.SessionMiddleware',
  28. 'django.contrib.auth.middleware.AuthenticationMiddleware',
  29. 'django.middleware.transaction.TransactionMiddleware',
  30. 'reversion.middleware.RevisionMiddleware',
  31. 'breadcrumbs.middleware.BreadcrumbsMiddleware',
  32. 'debug_toolbar.middleware.DebugToolbarMiddleware')
  33.  
  34.  
  35. Traceback:
  36. File "C:\Python27\lib\site-packages\django\core\handlers\base.py" in get_response
  37. 100. response = callback(request, *callback_args, **callback_kwargs)
  38. File "c:\development\python\mydb\movies\views.py" in testone
  39. 1664. if form.is_valid(): # All validation rules pass
  40. File "C:\Python27\lib\site-packages\django\forms\forms.py" in is_valid
  41. 121. return self.is_bound and not bool(self.errors)
  42. File "C:\Python27\lib\site-packages\django\forms\forms.py" in _get_errors
  43. 112. self.full_clean()
  44. File "C:\Python27\lib\site-packages\django\forms\forms.py" in full_clean
  45. 269. self._post_clean()
  46. File "C:\Python27\lib\site-packages\django\forms\models.py" in _post_clean
  47. 320. self.instance = construct_instance(self, self.instance, opts.fields, opts.exclude)
  48. File "C:\Python27\lib\site-packages\django\forms\models.py" in construct_instance
  49. 51. f.save_form_data(instance, cleaned_data[f.name])
  50. File "C:\Python27\lib\site-packages\django\db\models\fields\__init__.py" in save_form_data
  51. 416. setattr(instance, self.name, data)
  52. File "C:\Python27\lib\site-packages\django\db\models\fields\related.py" in __set__
  53. 325. (instance._meta.object_name, self.field.name))
  54.  
  55. Exception Type: ValueError at /testone/
  56. Exception Value: Cannot assign None: "Film.studio" does not allow null values.