我知道有很多次问过类似的问题，但这些解决方案都没有奏效。
最近，我一直在尝试连接到AWS RDS数据库。但是，现在每当我尝试通过manage.py运行服务器迁移我的数据库时，我总是得到以下结果：
Traceback (most recent call last):
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
psycopg2.ProgrammingError: relation "employee_employeeprofile" does not exist
LINE 1: ..."employee_employeeprofile"."additional_info" FROM "employee_...
^
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 14, in <module>
execute_from_command_line(sys.argv)
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line
utility.execute()
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/core/management/__init__.py", line 327, in execute
django.setup()
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/__init__.py", line 18, in setup
apps.populate(settings.INSTALLED_APPS)
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/apps/registry.py", line 115, in populate
app_config.ready()
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/debug_toolbar/apps.py", line 15, in ready
dt_settings.patch_all()
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/debug_toolbar/settings.py", line 228, in patch_all
patch_root_urlconf()
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/debug_toolbar/settings.py", line 216, in patch_root_urlconf
reverse('djdt:render_panel')
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/core/urlresolvers.py", line 568, in reverse
app_list = resolver.app_dict[ns]
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/core/urlresolvers.py", line 360, in app_dict
self._populate()
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/core/urlresolvers.py", line 293, in _populate
for pattern in reversed(self.url_patterns):
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/utils/functional.py", line 33, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/core/urlresolvers.py", line 417, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/utils/functional.py", line 33, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/core/urlresolvers.py", line 410, in urlconf_module
return import_module(self.urlconf_name)
File "/home/somil/Documents/Twine/venv/lib/python3.4/importlib/__init__.py", line 109, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
File "<frozen importlib._bootstrap>", line 2226, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 1200, in _load_unlocked
File "<frozen importlib._bootstrap>", line 1129, in _exec
File "<frozen importlib._bootstrap>", line 1471, in exec_module
File "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed
File "/home/somil/Documents/Twine/mobility/mobility/urls.py", line 5, in <module>
from mobility.apps.iam import urls as iam_urls
File "/home/somil/Documents/Twine/mobility/mobility/apps/iam/urls.py", line 3, in <module>
from . import views
File "/home/somil/Documents/Twine/mobility/mobility/apps/iam/views.py", line 7, in <module>
from ..employee.views import employee_profile
File "/home/somil/Documents/Twine/mobility/mobility/apps/employee/views.py", line 261, in <module>
class EmployeeFilter(django_filters.FilterSet):
File "/home/somil/Documents/Twine/mobility/mobility/apps/employee/views.py", line 267, in EmployeeFilter
functional_area_name = django_filters.MultipleChoiceFilter(name ="functional_area_name", choices = get_func_names())
File "/home/somil/Documents/Twine/mobility/mobility/apps/employee/views.py", line 226, in get_func_names
for e in EmployeeProfile.objects.all():
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/db/models/query.py", line 258, in __iter__
self._fetch_all()
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/db/models/query.py", line 1074, in _fetch_all
self._result_cache = list(self.iterator())
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/db/models/query.py", line 52, in __iter__
results = compiler.execute_sql()
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/db/models/sql/compiler.py", line 848, in execute_sql
cursor.execute(sql, params)
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/db/backends/utils.py", line 79, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/db/utils.py", line 95, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/utils/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/home/somil/Documents/Twine/venv/lib/python3.4/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: relation "employee_employeeprofile" does not exist
LINE 1: ..."employee_employeeprofile"."additional_info" FROM "employee_...
我尝试删除所有迁移并尝试重新制作，但此错误仍然存在。我也在我创建的任何新本地数据库上收到此错误。有什么建议？我觉得我经常会遇到这个错误，而且我可以轻松修复它的唯一方法是删除数据库并再次创建它，但这次它甚至不起作用？
答案 0 :(得分：0)
您正在调用您的get_func_names()函数，该函数在EmployeeFilter类的类级别查询EmployeeProfile模型。这意味着它在导入时被调用。由于视图是在启动时导入的，因此您的迁移尚未有机会运行。
您不应该在导入时调用任何访问数据库的代码。