Cant run any correspondent query against documents api

[thepill]

All querys fail with the following error:

Environment:


Request Method: GET
Request URL: http://paperless/api/documents/?title__startswith=&title__endswith=&title__contains=&title__istartswith=&title__iendswith=&title__icontains=&content__contains=&content__icontains=&correspondent__name=test&correspondent__slug=&tags__name=&tags__slug=&tags__empty=

Django Version: 2.0.8
Python Version: 3.6.6
Installed Applications:
['django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'corsheaders',
 'django_extensions',
 'documents.apps.DocumentsConfig',
 'reminders.apps.RemindersConfig',
 'paperless_tesseract.apps.PaperlessTesseractConfig',
 'paperless_text.apps.PaperlessTextConfig',
 'django.contrib.admin',
 'rest_framework',
 'crispy_forms',
 'django_filters']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'corsheaders.middleware.CorsMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback:

File "/root/.local/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
  35.             response = get_response(request)

File "/root/.local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
  128.                 response = self.process_exception_by_middleware(e, request)

File "/root/.local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
  126.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/root/.local/lib/python3.6/site-packages/django/views/decorators/csrf.py" in wrapped_view
  54.         return view_func(*args, **kwargs)

File "/root/.local/lib/python3.6/site-packages/rest_framework/viewsets.py" in view
  103.             return self.dispatch(request, *args, **kwargs)

File "/root/.local/lib/python3.6/site-packages/rest_framework/views.py" in dispatch
  483.             response = self.handle_exception(exc)

File "/root/.local/lib/python3.6/site-packages/rest_framework/views.py" in handle_exception
  443.             self.raise_uncaught_exception(exc)

File "/root/.local/lib/python3.6/site-packages/rest_framework/views.py" in dispatch
  480.             response = handler(request, *args, **kwargs)

File "/root/.local/lib/python3.6/site-packages/rest_framework/mixins.py" in list
  40.         queryset = self.filter_queryset(self.get_queryset())

File "/root/.local/lib/python3.6/site-packages/rest_framework/generics.py" in filter_queryset
  152.             queryset = backend().filter_queryset(self.request, queryset, self)

File "/root/.local/lib/python3.6/site-packages/django_filters/rest_framework/backends.py" in filter_queryset
  96.         return filterset.qs

File "/root/.local/lib/python3.6/site-packages/django_filters/filterset.py" in qs
  237.                 qs = self.filter_queryset(qs)

File "/root/.local/lib/python3.6/site-packages/django_filters/filterset.py" in filter_queryset
  224.             queryset = self.filters[name].filter(queryset, value)

File "/root/.local/lib/python3.6/site-packages/django_filters/filters.py" in filter
  147.         qs = self.get_method(qs)(**{lookup: value})

File "/root/.local/lib/python3.6/site-packages/django/db/models/query.py" in filter
  836.         return self._filter_or_exclude(False, *args, **kwargs)

File "/root/.local/lib/python3.6/site-packages/django/db/models/query.py" in _filter_or_exclude
  854.             clone.query.add_q(Q(*args, **kwargs))

File "/root/.local/lib/python3.6/site-packages/django/db/models/sql/query.py" in add_q
  1253.         clause, _ = self._add_q(q_object, self.used_aliases)

File "/root/.local/lib/python3.6/site-packages/django/db/models/sql/query.py" in _add_q
  1277.                     split_subq=split_subq,

File "/root/.local/lib/python3.6/site-packages/django/db/models/sql/query.py" in build_filter
  1215.         condition = self.build_lookup(lookups, col, value)

File "/root/.local/lib/python3.6/site-packages/django/db/models/sql/query.py" in build_lookup
  1079.             lhs = self.try_transform(lhs, lookup_name)

File "/root/.local/lib/python3.6/site-packages/django/db/models/sql/query.py" in try_transform
  1115.                 (name, lhs.output_field.__class__.__name__))

Exception Type: FieldError at /api/documents/
Exception Value: Unsupported lookup '('startswith', 'endswith', 'contains', 'istartswith', 'iendswith', 'icontains')' for CharField or join on the field not permitted.

[danielquinn]

I see the problem. It's flaking out on filtering for correspondent name (a join) but not on attributes like title or content. I'm looking into it now.

[danielquinn]

It turns out that when we updated django-filter a while back that its API changed and no one noticed that that change broke Paperless' own stuff until you posted this, so thanks! It should be all fixed now, so give it a try.