'save_as'应该与内联一起使用吗？我对回溯感到困惑，但它似乎并没有表现出我自己的代码。
问题似乎是在保存添加表单时将内联设置为''的ID。当你做一个正常的'添加'时，这很愉快地处理：
Traceback:
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
111. response = callback(request, *callback_args, **callback_kwargs)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/contrib/admin/options.py" in wrapper
307. return self.admin_site.admin_view(view)(*args, **kwargs)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view
93. response = view_func(request, *args, **kwargs)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
79. response = view_func(request, *args, **kwargs)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/contrib/admin/sites.py" in inner
197. return view(request, *args, **kwargs)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapper
28. return bound_func(*args, **kwargs)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view
93. response = view_func(request, *args, **kwargs)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/utils/decorators.py" in bound_func
24. return func(self, *args2, **kwargs2)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/db/transaction.py" in inner
217. res = func(*args, **kwargs)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/contrib/admin/options.py" in add_view
879. prefix=prefix, queryset=inline.queryset(request))
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/forms/models.py" in __init__
682. queryset=qs)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/forms/models.py" in __init__
415. super(BaseModelFormSet, self).__init__(**defaults)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/forms/formsets.py" in __init__
47. self._construct_forms()
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/forms/formsets.py" in _construct_forms
108. self.forms.append(self._construct_form(i))
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/forms/models.py" in _construct_form
691. form = super(BaseInlineFormSet, self)._construct_form(i, **kwargs)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/forms/models.py" in _construct_form
437. connection=connections[self.get_queryset().db])
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/db/models/fields/subclassing.py" in inner
53. return func(*args, **kwargs)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/db/models/fields/subclassing.py" in inner
53. return func(*args, **kwargs)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/db/models/fields/__init__.py" in get_db_prep_lookup
306. value = self.get_prep_lookup(lookup_type, value)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/db/models/fields/__init__.py" in get_prep_lookup
292. return self.get_prep_value(value)
File "/Users/andybaker/.virtualenvs/nmdc_test/lib/python2.7/site-packages/django/db/models/fields/__init__.py" in get_prep_value
479. return int(value)
Exception Type: ValueError at /admin/property_manager/property/add/
Exception Value: invalid literal for int() with base 10: ''