Exception when sorting dcim interface-connections by device_b

[candlerb]

Environment

• Python version: 3.5.2
• NetBox version: 2.5.10

Steps to Reproduce

1. Browse to Device -> Interface Connections (/dcim/interface-connections/)
2. Click on the headline for Device B (i.e. sort according to Device B)
3. This takes you to /dcim/interface-connections/?sort=device_b which raises an exception
4. Similar exceptions are also raised for ?sort=interface_b and ?sort=description_b

Expected Behavior

Render table of connections sorted by the given parameter

Observed Behavior

Raises 'django.core.exceptions.FieldError'

Internal Server Error: /dcim/interface-connections/

FieldError at /dcim/interface-connections/
Cannot resolve keyword 'connected_endpoint' into field. Choices are: _cabled_as_a, _cabled_as_b, _channel, _connected_circuittermination, _connected_circuittermination_id, _connected_interface, _connected_interface_id, _id, _position, _slot, _subposition, _subslot, _type, _vc, cable, cable_id, connection_status, description, device, device_id, enabled, form_factor, id, ip_addresses, lag, lag_id, mac_address, member_interfaces, mgmt_only, mode, mtu, name, tagged_items, tagged_vlans, tags, untagged_vlan, untagged_vlan_id, virtual_machine, virtual_machine_id

Request Method: GET
Request URL: http://netbox.example.net/dcim/interface-connections/?sort=device_b
Django Version: 2.1.8
Python Executable: /usr/bin/python3
Python Version: 3.5.2
Python Path: ['/opt/netbox/netbox', '/usr/local/bin', '/usr/lib/python35.zip', '/usr/lib/python3.5', '/usr/lib/python3.5/plat-x86_64-linux-gnu', '/usr/lib/python3.5/lib-dynload', '/usr/local/lib/python3.5/dist-packages', '/usr/lib/python3/dist-packages']
Server time: Fri, 26 Apr 2019 06:32:38 +0000
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.humanize',
 'corsheaders',
 'debug_toolbar',
 'django_filters',
 'django_tables2',
 'mptt',
 'rest_framework',
 'taggit',
 'taggit_serializer',
 'timezone_field',
 'circuits',
 'dcim',
 'ipam',
 'extras',
 'secrets',
 'tenancy',
 'users',
 'utilities',
 'virtualization',
 'drf_yasg']
Installed Middleware:
('debug_toolbar.middleware.DebugToolbarMiddleware',
 'corsheaders.middleware.CorsMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'django.middleware.security.SecurityMiddleware',
 'utilities.middleware.ExceptionHandlingMiddleware',
 'utilities.middleware.LoginRequiredMiddleware',
 'utilities.middleware.APIVersionMiddleware',
 'extras.middleware.ObjectChangeMiddleware')


Traceback:

File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/exception.py" in inner
  34.             response = get_response(request)

File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/base.py" in _get_response
  126.                 response = self.process_exception_by_middleware(e, request)

File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/base.py" in _get_response
  124.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/usr/local/lib/python3.5/dist-packages/django/views/generic/base.py" in view
  68.             return self.dispatch(request, *args, **kwargs)

File "/usr/local/lib/python3.5/dist-packages/django/views/generic/base.py" in dispatch
  88.         return handler(request, *args, **kwargs)

File "/opt/netbox/netbox/utilities/views.py" in get
  180.         return render(request, self.template_name, context)

File "/usr/local/lib/python3.5/dist-packages/django/shortcuts.py" in render
  36.     content = loader.render_to_string(template_name, context, request, using=using)

File "/usr/local/lib/python3.5/dist-packages/django/template/loader.py" in render_to_string
  62.     return template.render(context, request)

File "/usr/local/lib/python3.5/dist-packages/django/template/backends/django.py" in render
  61.             return self.template.render(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render
  171.                     return self._render(context)

File "/usr/local/lib/python3.5/dist-packages/django/test/utils.py" in instrumented_test_render
  96.     return self.nodelist.render(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render
  937.                 bit = node.render_annotated(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render_annotated
  904.             return self.render(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/loader_tags.py" in render
  150.             return compiled_parent._render(context)

File "/usr/local/lib/python3.5/dist-packages/django/test/utils.py" in instrumented_test_render
  96.     return self.nodelist.render(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render
  937.                 bit = node.render_annotated(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render_annotated
  904.             return self.render(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/loader_tags.py" in render
  62.                 result = block.nodelist.render(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render
  937.                 bit = node.render_annotated(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render_annotated
  904.             return self.render(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/loader_tags.py" in render
  188.             return template.render(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render
  173.                 return self._render(context)

File "/usr/local/lib/python3.5/dist-packages/django/test/utils.py" in instrumented_test_render
  96.     return self.nodelist.render(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render
  937.                 bit = node.render_annotated(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render_annotated
  904.             return self.render(context)

File "/usr/local/lib/python3.5/dist-packages/django_tables2/templatetags/django_tables2.py" in render
  170.             return template.render(context={"table": table}, request=request)

File "/usr/local/lib/python3.5/dist-packages/django/template/backends/django.py" in render
  61.             return self.template.render(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render
  171.                     return self._render(context)

File "/usr/local/lib/python3.5/dist-packages/django/test/utils.py" in instrumented_test_render
  96.     return self.nodelist.render(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render
  937.                 bit = node.render_annotated(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in render_annotated
  904.             return self.render(context)

File "/usr/local/lib/python3.5/dist-packages/django/template/defaulttags.py" in render
  161.             values = self.sequence.resolve(context, ignore_failures=True)

File "/usr/local/lib/python3.5/dist-packages/django/template/base.py" in resolve
  698.                 new_obj = func(obj, *arg_vals)

File "/usr/local/lib/python3.5/dist-packages/django/template/defaultfilters.py" in default
  754.     return value or arg

File "/usr/local/lib/python3.5/dist-packages/django_tables2/rows.py" in __len__
  335.         length = len(self.data)

File "/usr/local/lib/python3.5/dist-packages/django/db/models/query.py" in __len__
  250.         self._fetch_all()

File "/usr/local/lib/python3.5/dist-packages/django/db/models/query.py" in _fetch_all
  1186.             self._result_cache = list(self._iterable_class(self))

File "/usr/local/lib/python3.5/dist-packages/django/db/models/query.py" in __iter__
  54.         results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)

File "/usr/local/lib/python3.5/dist-packages/django/db/models/sql/compiler.py" in execute_sql
  1052.             sql, params = self.as_sql()

File "/usr/local/lib/python3.5/dist-packages/django/db/models/sql/compiler.py" in as_sql
  449.             extra_select, order_by, group_by = self.pre_sql_setup()

File "/usr/local/lib/python3.5/dist-packages/django/db/models/sql/compiler.py" in pre_sql_setup
  51.         order_by = self.get_order_by()

File "/usr/local/lib/python3.5/dist-packages/django/db/models/sql/compiler.py" in get_order_by
  315.                     field, self.query.get_meta(), default_order=asc))

File "/usr/local/lib/python3.5/dist-packages/django/db/models/sql/compiler.py" in find_ordering_name
  668.         field, targets, alias, joins, path, opts, transform_function = self._setup_joins(pieces, opts, alias)

File "/usr/local/lib/python3.5/dist-packages/django/db/models/sql/compiler.py" in _setup_joins
  698.         field, targets, opts, joins, path, transform_function = self.query.setup_joins(pieces, opts, alias)

File "/usr/local/lib/python3.5/dist-packages/django/db/models/sql/query.py" in setup_joins
  1473.                     names[:pivot], opts, allow_many, fail_on_missing=True,

File "/usr/local/lib/python3.5/dist-packages/django/db/models/sql/query.py" in names_to_path
  1389.                                      "Choices are: %s" % (name, ", ".join(available)))

Exception Type: FieldError at /dcim/interface-connections/
Exception Value: Cannot resolve keyword 'connected_endpoint' into field. Choices are: _cabled_as_a, _cabled_as_b, _channel, _connected_circuittermination, _connected_circuittermination_id, _connected_interface, _connected_interface_id, _id, _position, _slot, _subposition, _subslot, _type, _vc, cable, cable_id, connection_status, description, device, device_id, enabled, form_factor, id, ip_addresses, lag, lag_id, mac_address, member_interfaces, mgmt_only, mode, mtu, name, tagged_items, tagged_vlans, tags, untagged_vlan, untagged_vlan_id, virtual_machine, virtual_machine_id
Request information:
USER: admin

GET:
sort = 'device_b'

POST: No POST data

FILES: No FILES data

I note that the only Netbox file in that backtrace is /opt/netbox/netbox/utilities/views.py