Merge remote-tracking branch 'up/master' into enum_conversion_fixes

.gitignore

@@ -78,3 +78,5 @@ Session.vim
 *~
 # auto-generated tag files
 tags
+.tox/
+.pytest_cache/

.travis.yml

@@ -1,62 +1,60 @@
 language: python
 sudo: required
 dist: xenial
+
 python:
   - 2.7
   - 3.4
   - 3.5
   - 3.6
   - 3.7
-install:
-- |
-  if [ "$TEST_TYPE" = build ]; then
-    pip install -e .[test]
-    pip install psycopg2==2.8.2 # Required for Django postgres fields testing
-    pip install django==$DJANGO_VERSION
-    python setup.py develop
-  elif [ "$TEST_TYPE" = lint ]; then
-    pip install flake8==3.7.7
-  fi
-script:
-- |
-  if [ "$TEST_TYPE" = lint ]; then
-    echo "Checking Python code lint."
-    flake8 graphene_django
-    exit
-  elif [ "$TEST_TYPE" = build ]; then
-    py.test --cov=graphene_django graphene_django examples
-  fi
-after_success:
-- |
-  if [ "$TEST_TYPE" = build ]; then
-      coveralls
-  fi
+
 env:
   matrix:
-  - TEST_TYPE=build DJANGO_VERSION=1.11
+    - DJANGO=1.11
+    - DJANGO=2.1
+    - DJANGO=2.2
+    - DJANGO=master
+
+install:
+  - TOX_ENV=py${TRAVIS_PYTHON_VERSION}-django${DJANGO}
+  - pip install tox
+  - tox -e $TOX_ENV --notest
+script:
+  - tox -e $TOX_ENV
+
+after_success:
+  - tox -e $TOX_ENV -- pip install coveralls 
+  - tox -e $TOX_ENV -- coveralls $COVERALLS_OPTION
+
 matrix:
   fast_finish: true
   include:
-  - python: '3.4'
-    env: TEST_TYPE=build DJANGO_VERSION=2.0
-  - python: '3.5'
-    env: TEST_TYPE=build DJANGO_VERSION=2.0
-  - python: '3.6'
-    env: TEST_TYPE=build DJANGO_VERSION=2.0
-  - python: '3.5'
-    env: TEST_TYPE=build DJANGO_VERSION=2.1
-  - python: '3.6'
-    env: TEST_TYPE=build DJANGO_VERSION=2.1
-  - python: '3.6'
-    env: TEST_TYPE=build DJANGO_VERSION=2.2
-  - python: '3.7'
-    env: TEST_TYPE=build DJANGO_VERSION=2.2
-  - python: '2.7'
-    env: TEST_TYPE=lint
-  - python: '3.6'
-    env: TEST_TYPE=lint
-  - python: '3.7'
-    env: TEST_TYPE=lint
+  - python: 3.5
+    script: tox -e lint
+  exclude:
+    - python: 2.7
+      env: DJANGO=2.1
+    - python: 2.7
+      env: DJANGO=2.2
+    - python: 2.7
+      env: DJANGO=master
+    - python: 3.4
+      env: DJANGO=2.1
+    - python: 3.4
+      env: DJANGO=2.2
+    - python: 3.4
+      env: DJANGO=master
+    - python: 3.5
+      env: DJANGO=master
+    - python: 3.7
+      env: DJANGO=1.10
+    - python: 3.7
+      env: DJANGO=1.11
+  allow_failures:
+    - python: 3.7
+    - env: DJANGO=master
+
 deploy:
   provider: pypi
   user: syrusakbary

docs/filtering.rst

@@ -100,7 +100,7 @@ features of ``django-filter``. This is done by transparently creating a
 ``filter_fields``.
 
 However, you may find this to be insufficient. In these cases you can
-create your own ``Filterset`` as follows:
+create your own ``FilterSet``. You can pass it directly as follows:
 
 .. code:: python
 
@@ -127,6 +127,33 @@ create your own ``Filterset`` as follows:
         all_animals = DjangoFilterConnectionField(AnimalNode,
                                                   filterset_class=AnimalFilter)
 
+You can also specify the ``FilterSet`` class using the ``filerset_class``
+parameter when defining your ``DjangoObjectType``, however, this can't be used
+in unison  with the ``filter_fields`` parameter:
+
+.. code:: python
+
+    class AnimalFilter(django_filters.FilterSet):
+        # Do case-insensitive lookups on 'name'
+        name = django_filters.CharFilter(lookup_expr=['iexact'])
+
+        class Meta:
+            # Assume you have an Animal model defined with the following fields
+            model = Animal
+            fields = ['name', 'genus', 'is_domesticated']
+
+
+    class AnimalNode(DjangoObjectType):
+        class Meta:
+            model = Animal
+            filterset_class = AnimalFilter
+            interfaces = (relay.Node, )
+
+
+    class Query(ObjectType):
+        animal = relay.Node.Field(AnimalNode)
+        all_animals = DjangoFilterConnectionField(AnimalNode)
+
 The context argument is passed on as the `request argument <http://django-filter.readthedocs.io/en/master/guide/usage.html#request-based-filtering>`__
 in a ``django_filters.FilterSet`` instance. You can use this to customize your
 filters to be context-dependent. We could modify the ``AnimalFilter`` above to

docs/introspection.rst

@@ -35,6 +35,8 @@ Advanced Usage
 The ``--indent`` option can be used to specify the number of indentation spaces to
 be used in the output. Defaults to `None` which displays all data on a single line.
 
+The ``--watch`` option can be used to run ``./manage.py graphql_schema`` in watch mode, where it will automatically output a new schema every time there are file changes in your project
+
 To simplify the command to ``./manage.py graphql_schema``, you can
 specify the parameters in your settings.py:
 

docs/mutations.rst

@@ -199,7 +199,9 @@ You can use relay with mutations. A Relay mutation must inherit from
 
 .. code:: python
 
-    import graphene import relay, DjangoObjectType
+    import graphene 
+    from graphene import relay
+    from graphene_django import DjangoObjectType
     from graphql_relay import from_global_id
 
     from .queries import QuestionType
@@ -214,7 +216,7 @@ You can use relay with mutations. A Relay mutation must inherit from
 
         @classmethod
         def mutate_and_get_payload(cls, root, info, text, id):
-            question = Question.objects.get(pk=from_global_id(id))
+            question = Question.objects.get(pk=from_global_id(id)[1])
             question.text = text
             question.save()
             return QuestionMutation(question=question)

examples/cookbook/requirements.txt

@@ -1,5 +1,5 @@
 graphene
 graphene-django
 graphql-core>=2.1rc1
-django==1.11.19
+django==1.11.20
 django-filter>=2

graphene_django/converter.py

@@ -180,19 +180,22 @@ def convert_field_to_list_or_connection(field, registry=None):
         if not _type:
             return
 
+        description = field.help_text if isinstance(field, models.ManyToManyField) else field.field.help_text
+
         # If there is a connection, we should transform the field
         # into a DjangoConnectionField
         if _type._meta.connection:
             # Use a DjangoFilterConnectionField if there are
-            # defined filter_fields in the DjangoObjectType Meta
-            if _type._meta.filter_fields:
+            # defined filter_fields or a filterset_class in the
+            # DjangoObjectType Meta
+            if _type._meta.filter_fields or _type._meta.filterset_class:
                 from .filter.fields import DjangoFilterConnectionField
 
-                return DjangoFilterConnectionField(_type)
+                return DjangoFilterConnectionField(_type, description=description)
 
-            return DjangoConnectionField(_type)
+            return DjangoConnectionField(_type, description=description)
 
-        return DjangoListField(_type)
+        return DjangoListField(_type, description=description)
 
     return Dynamic(dynamic_type)
 

graphene_django/debug/tests/test_query.py

@@ -50,9 +50,7 @@ def test_should_query_field():
     """
     expected = {
         "reporter": {"lastName": "ABA"},
-        "_debug": {
-            "sql": [{"rawSql": str(Reporter.objects.order_by("pk")[:1].query)}]
-        },
+        "_debug": {"sql": [{"rawSql": str(Reporter.objects.order_by("pk")[:1].query)}]},
     }
     schema = graphene.Schema(query=Query)
     result = schema.execute(

graphene_django/filter/fields.py

@@ -40,8 +40,10 @@ class DjangoFilterConnectionField(DjangoConnectionField):
             if self._extra_filter_meta:
                 meta.update(self._extra_filter_meta)
 
+            filterset_class = self._provided_filterset_class or (
+                self.node_type._meta.filterset_class)
             self._filterset_class = get_filterset_class(
-                self._provided_filterset_class, **meta
+                filterset_class, **meta
             )
 
         return self._filterset_class

graphene_django/filter/tests/test_fields.py

@@ -227,6 +227,73 @@ def test_filter_filterset_information_on_meta_related():
     assert_not_orderable(articles_field)
 
 
+def test_filter_filterset_class_filter_fields_exception():
+    with pytest.raises(Exception):
+        class ReporterFilter(FilterSet):
+            class Meta:
+                model = Reporter
+                fields = ["first_name", "articles"]
+
+        class ReporterFilterNode(DjangoObjectType):
+            class Meta:
+                model = Reporter
+                interfaces = (Node,)
+                filterset_class = ReporterFilter
+                filter_fields = ["first_name", "articles"]
+
+
+def test_filter_filterset_class_information_on_meta():
+    class ReporterFilter(FilterSet):
+        class Meta:
+            model = Reporter
+            fields = ["first_name", "articles"]
+
+    class ReporterFilterNode(DjangoObjectType):
+        class Meta:
+            model = Reporter
+            interfaces = (Node,)
+            filterset_class = ReporterFilter
+
+    field = DjangoFilterConnectionField(ReporterFilterNode)
+    assert_arguments(field, "first_name", "articles")
+    assert_not_orderable(field)
+
+
+def test_filter_filterset_class_information_on_meta_related():
+    class ReporterFilter(FilterSet):
+        class Meta:
+            model = Reporter
+            fields = ["first_name", "articles"]
+
+    class ArticleFilter(FilterSet):
+        class Meta:
+            model = Article
+            fields = ["headline", "reporter"]
+
+    class ReporterFilterNode(DjangoObjectType):
+        class Meta:
+            model = Reporter
+            interfaces = (Node,)
+            filterset_class = ReporterFilter
+
+    class ArticleFilterNode(DjangoObjectType):
+        class Meta:
+            model = Article
+            interfaces = (Node,)
+            filterset_class = ArticleFilter
+
+    class Query(ObjectType):
+        all_reporters = DjangoFilterConnectionField(ReporterFilterNode)
+        all_articles = DjangoFilterConnectionField(ArticleFilterNode)
+        reporter = Field(ReporterFilterNode)
+        article = Field(ArticleFilterNode)
+
+    schema = Schema(query=Query)
+    articles_field = ReporterFilterNode._meta.fields["articles"].get_type()
+    assert_arguments(articles_field, "headline", "reporter")
+    assert_not_orderable(articles_field)
+
+
 def test_filter_filterset_related_results():
     class ReporterFilterNode(DjangoObjectType):
         class Meta:

graphene_django/management/commands/graphql_schema.py

@@ -1,7 +1,9 @@
 import importlib
 import json
+import functools
 
 from django.core.management.base import BaseCommand, CommandError
+from django.utils import autoreload
 
 from graphene_django.settings import graphene_settings
 
@@ -32,6 +34,14 @@ class CommandArguments(BaseCommand):
             help="Output file indent (default: None)",
         )
 
+        parser.add_argument(
+            "--watch",
+            dest="watch",
+            default=False,
+            action="store_true",
+            help="Updates the schema on file changes (default: False)",
+        )
+
 
 class Command(CommandArguments):
     help = "Dump Graphene schema JSON to file"
@@ -41,6 +51,18 @@ class Command(CommandArguments):
         with open(out, "w") as outfile:
             json.dump(schema_dict, outfile, indent=indent, sort_keys=True)
 
+    def get_schema(self, schema, out, indent):
+        schema_dict = {"data": schema.introspect()}
+        if out == "-":
+            self.stdout.write(json.dumps(schema_dict, indent=indent, sort_keys=True))
+        else:
+            self.save_file(out, schema_dict, indent)
+
+            style = getattr(self, "style", None)
+            success = getattr(style, "SUCCESS", lambda x: x)
+
+            self.stdout.write(success("Successfully dumped GraphQL schema to %s" % out))
+
     def handle(self, *args, **options):
         options_schema = options.get("schema")
 
@@ -63,13 +85,10 @@ class Command(CommandArguments):
             )
 
         indent = options.get("indent")
-        schema_dict = {"data": schema.introspect()}
-        if out == "-":
-            self.stdout.write(json.dumps(schema_dict, indent=indent, sort_keys=True))
+        watch = options.get("watch")
+        if watch:
+            autoreload.run_with_reloader(
+                functools.partial(self.get_schema, schema, out, indent)
+            )
         else:
-            self.save_file(out, schema_dict, indent)
-
-            style = getattr(self, "style", None)
-            success = getattr(style, "SUCCESS", lambda x: x)
-
-            self.stdout.write(success("Successfully dumped GraphQL schema to %s" % out))
+            self.get_schema(schema, out, indent)

graphene_django/rest_framework/models.py

@@ -4,3 +4,8 @@ from django.db import models
 class MyFakeModel(models.Model):
     cool_name = models.CharField(max_length=50)
     created = models.DateTimeField(auto_now_add=True)
+
+
+class MyFakeModelWithPassword(models.Model):
+    cool_name = models.CharField(max_length=50)
+    password = models.CharField(max_length=50)

graphene_django/rest_framework/mutation.py

@@ -27,6 +27,8 @@ def fields_for_serializer(serializer, only_fields, exclude_fields, is_input=Fals
             name
             in exclude_fields  # or
             # name in already_created_fields
+        ) or (
+            field.write_only and not is_input  # don't show write_only fields in Query
         )
 
         if is_not_in_only or is_excluded:
@@ -138,6 +140,7 @@ class SerializerMutation(ClientIDMutation):
 
         kwargs = {}
         for f, field in serializer.fields.items():
+            if not field.write_only:
                 kwargs[f] = field.get_attribute(obj)
 
         return cls(errors=None, **kwargs)

graphene_django/rest_framework/tests/test_mutation.py

@@ -7,7 +7,7 @@ from py.test import mark
 from rest_framework import serializers
 
 from ...types import DjangoObjectType
-from ..models import MyFakeModel
+from ..models import MyFakeModel, MyFakeModelWithPassword
 from ..mutation import SerializerMutation
 
 
@@ -86,6 +86,47 @@ def test_exclude_fields():
     assert "created" not in MyMutation.Input._meta.fields
 
 
+@mark.django_db
+def test_write_only_field():
+    class WriteOnlyFieldModelSerializer(serializers.ModelSerializer):
+        password = serializers.CharField(write_only=True)
+
+        class Meta:
+            model = MyFakeModelWithPassword
+            fields = ["cool_name", "password"]
+
+    class MyMutation(SerializerMutation):
+        class Meta:
+            serializer_class = WriteOnlyFieldModelSerializer
+
+    result = MyMutation.mutate_and_get_payload(
+        None, mock_info(), **{"cool_name": "New Narf", "password": "admin"}
+    )
+
+    assert hasattr(result, "cool_name")
+    assert not hasattr(result, "password"), "'password' is write_only field and shouldn't be visible"
+
+
+@mark.django_db
+def test_write_only_field_using_extra_kwargs():
+    class WriteOnlyFieldModelSerializer(serializers.ModelSerializer):
+        class Meta:
+            model = MyFakeModelWithPassword
+            fields = ["cool_name", "password"]
+            extra_kwargs = {"password": {"write_only": True}}
+
+    class MyMutation(SerializerMutation):
+        class Meta:
+            serializer_class = WriteOnlyFieldModelSerializer
+
+    result = MyMutation.mutate_and_get_payload(
+        None, mock_info(), **{"cool_name": "New Narf", "password": "admin"}
+    )
+
+    assert hasattr(result, "cool_name")
+    assert not hasattr(result, "password"), "'password' is write_only field and shouldn't be visible"
+
+
 def test_nested_model():
     class MyFakeModelGrapheneType(DjangoObjectType):
         class Meta:

graphene_django/tests/models.py

@@ -66,6 +66,11 @@ class Reporter(models.Model):
             self.__class__ = CNNReporter
 
 
+class CNNReporterManager(models.Manager):
+    def get_queryset(self):
+        return super(CNNReporterManager, self).get_queryset().filter(reporter_type=2)
+
+
 class CNNReporter(Reporter):
     """
     This class is a proxy model for Reporter, used for testing
@@ -75,6 +80,8 @@ class CNNReporter(Reporter):
     class Meta:
         proxy = True
 
+    objects = CNNReporterManager()
+
 
 class Article(models.Model):
     headline = models.CharField(max_length=100)

graphene_django/tests/test_query.py

@@ -1,3 +1,4 @@
+import base64
 import datetime
 
 import pytest
@@ -7,6 +8,7 @@ from py.test import raises
 
 from django.db.models import Q
 
+from graphql_relay import to_global_id
 import graphene
 from graphene.relay import Node
 
@@ -226,6 +228,62 @@ def test_should_node():
     assert result.data == expected
 
 
+def test_should_query_onetoone_fields():
+    film = Film(id=1)
+    film_details = FilmDetails(id=1, film=film)
+
+    class FilmNode(DjangoObjectType):
+        class Meta:
+            model = Film
+            interfaces = (Node,)
+
+    class FilmDetailsNode(DjangoObjectType):
+        class Meta:
+            model = FilmDetails
+            interfaces = (Node,)
+
+    class Query(graphene.ObjectType):
+        film = graphene.Field(FilmNode)
+        film_details = graphene.Field(FilmDetailsNode)
+
+        def resolve_film(root, info):
+            return film
+
+        def resolve_film_details(root, info):
+            return film_details
+
+    query = """
+        query FilmQuery {
+          filmDetails {
+            id
+            film {
+              id
+            }
+          }
+          film {
+            id
+            details {
+              id
+            }
+          }
+        }
+    """
+    expected = {
+        "filmDetails": {
+            "id": "RmlsbURldGFpbHNOb2RlOjE=",
+            "film": {"id": "RmlsbU5vZGU6MQ=="},
+        },
+        "film": {
+            "id": "RmlsbU5vZGU6MQ==",
+            "details": {"id": "RmlsbURldGFpbHNOb2RlOjE="},
+        },
+    }
+    schema = graphene.Schema(query=Query)
+    result = schema.execute(query)
+    assert not result.errors
+    assert result.data == expected
+
+
 def test_should_query_connectionfields():
     class ReporterType(DjangoObjectType):
         class Meta:
@@ -895,8 +953,7 @@ def test_should_handle_inherited_choices():
 
 def test_proxy_model_support():
     """
-    This test asserts that we can query for all Reporters,
-    even if some are of a proxy model type at runtime.
+    This test asserts that we can query for all Reporters and proxied Reporters.
     """
 
     class ReporterType(DjangoObjectType):
@@ -905,11 +962,17 @@ def test_proxy_model_support():
             interfaces = (Node,)
             use_connection = True
 
-    reporter_1 = Reporter.objects.create(
+    class CNNReporterType(DjangoObjectType):
+        class Meta:
+            model = CNNReporter
+            interfaces = (Node,)
+            use_connection = True
+
+    reporter = Reporter.objects.create(
         first_name="John", last_name="Doe", email="johndoe@example.com", a_choice=1
     )
 
-    reporter_2 = CNNReporter.objects.create(
+    cnn_reporter = CNNReporter.objects.create(
         first_name="Some",
         last_name="Guy",
         email="someguy@cnn.com",
@@ -919,6 +982,7 @@ def test_proxy_model_support():
 
     class Query(graphene.ObjectType):
         all_reporters = DjangoConnectionField(ReporterType)
+        cnn_reporters = DjangoConnectionField(CNNReporterType)
 
     schema = graphene.Schema(query=Query)
     query = """
@@ -930,14 +994,26 @@ def test_proxy_model_support():
                     }
                 }
             }
+            cnnReporters {
+                edges {
+                    node {
+                        id
+                    }
+                }
+            }
         }
     """
 
     expected = {
         "allReporters": {
             "edges": [
-                {"node": {"id": "UmVwb3J0ZXJUeXBlOjE="}},
-                {"node": {"id": "UmVwb3J0ZXJUeXBlOjI="}},
+                {"node": {"id": to_global_id("ReporterType", reporter.id)}},
+                {"node": {"id": to_global_id("ReporterType", cnn_reporter.id)}},
+            ]
+        },
+        "cnnReporters": {
+            "edges": [
+                {"node": {"id": to_global_id("CNNReporterType", cnn_reporter.id)}}
             ]
         }
     }
@@ -947,68 +1023,6 @@ def test_proxy_model_support():
     assert result.data == expected
     
 
-def test_proxy_model_fails():
-    """
-    This test asserts that if you try to query for a proxy model,
-    that query will fail with:
-        GraphQLError('Expected value of type "CNNReporterType" but got:
-            CNNReporter.',)
-
-    This is because a proxy model has the identical model definition
-    to its superclass, and defines its behavior at runtime, rather than
-    at the database level. Currently, filtering objects of the proxy models'
-    type isn't supported. It would require a field on the model that would
-    represent the type, and it doesn't seem like there is a clear way to
-    enforce this pattern across all projects
-    """
-
-    class CNNReporterType(DjangoObjectType):
-        class Meta:
-            model = CNNReporter
-            interfaces = (Node,)
-            use_connection = True
-
-    reporter_1 = Reporter.objects.create(
-        first_name="John", last_name="Doe", email="johndoe@example.com", a_choice=1
-    )
-
-    reporter_2 = CNNReporter.objects.create(
-        first_name="Some",
-        last_name="Guy",
-        email="someguy@cnn.com",
-        a_choice=1,
-        reporter_type=2,  # set this guy to be CNN
-    )
-
-    class Query(graphene.ObjectType):
-        all_reporters = DjangoConnectionField(CNNReporterType)
-
-    schema = graphene.Schema(query=Query)
-    query = """
-        query ProxyModelQuery {
-            allReporters {
-                edges {
-                    node {
-                        id
-                    }
-                }
-            }
-        }
-    """
-
-    expected = {
-        "allReporters": {
-            "edges": [
-                {"node": {"id": "UmVwb3J0ZXJUeXBlOjE="}},
-                {"node": {"id": "UmVwb3J0ZXJUeXBlOjI="}},
-            ]
-        }
-    }
-
-    result = schema.execute(query)
-    assert result.errors
-
-
 def test_should_resolve_get_queryset_connectionfields():
     reporter_1 = Reporter.objects.create(
         first_name="John", last_name="Doe", email="johndoe@example.com", a_choice=1

graphene_django/types.py

@@ -45,6 +45,7 @@ class DjangoObjectTypeOptions(ObjectTypeOptions):
     connection = None  # type: Type[Connection]
 
     filter_fields = ()
+    filterset_class = None
 
 
 class DjangoObjectType(ObjectType):
@@ -57,6 +58,7 @@ class DjangoObjectType(ObjectType):
         only_fields=(),
         exclude_fields=(),
         filter_fields=None,
+        filterset_class=None,
         connection=None,
         connection_class=None,
         use_connection=None,
@@ -76,8 +78,14 @@ class DjangoObjectType(ObjectType):
             'Registry, received "{}".'
         ).format(cls.__name__, registry)
 
-        if not DJANGO_FILTER_INSTALLED and filter_fields:
-            raise Exception("Can only set filter_fields if Django-Filter is installed")
+        if filter_fields and filterset_class:
+            raise Exception("Can't set both filter_fields and filterset_class")
+
+        if not DJANGO_FILTER_INSTALLED and (filter_fields or filterset_class):
+            raise Exception((
+                "Can only set filter_fields or filterset_class if "
+                "Django-Filter is installed"
+            ))
 
         django_fields = yank_fields_from_attrs(
             construct_fields(model, registry, only_fields, exclude_fields), _as=Field
@@ -108,6 +116,7 @@ class DjangoObjectType(ObjectType):
         _meta.model = model
         _meta.registry = registry
         _meta.filter_fields = filter_fields
+        _meta.filterset_class = filterset_class
         _meta.fields = django_fields
         _meta.connection = connection
 
@@ -131,7 +140,11 @@ class DjangoObjectType(ObjectType):
         if not is_valid_django_model(type(root)):
             raise Exception(('Received incompatible instance "{}".').format(root))
 
+        if cls._meta.model._meta.proxy:
+            model = root._meta.model
+        else:
             model = root._meta.model._meta.concrete_model
+
         return model == cls._meta.model
 
     @classmethod

graphene_django/utils/testing.py

@@ -22,7 +22,7 @@ class GraphQLTestCase(TestCase):
                 "Variable GRAPHQL_SCHEMA not defined in GraphQLTestCase."
             )
 
-        cls._client = Client(cls.GRAPHQL_SCHEMA)
+        cls._client = Client()
 
     def query(self, query, op_name=None, input_data=None):
         """

graphene_django/utils/utils.py

@@ -18,7 +18,8 @@ def get_reverse_fields(model, local_field_names):
         if name in local_field_names:
             continue
 
-        related = getattr(attr, "rel", None)
+        # "rel" for FK and M2M relations and "related" for O2O Relations
+        related = getattr(attr, "rel", None) or getattr(attr, "related", None)
         if isinstance(related, models.ManyToOneRel):
             yield (name, related)
         elif isinstance(related, models.ManyToManyRel) and not related.symmetrical:

tox.ini

@@ -0,0 +1,31 @@
+[tox]
+envlist = py{2.7,3.4,3.5,3.6,3.7,pypy,pypy3}-django{1.10,1.11,2.0,2.1,2.2,master},lint
+
+[testenv]
+passenv = *
+usedevelop = True
+setenv = 
+    DJANGO_SETTINGS_MODULE=django_test_settings
+basepython =
+    py2.7: python2.7
+    py3.4: python3.4
+    py3.5: python3.5
+    py3.6: python3.6
+    py3.7: python3.7
+    pypypy: pypy
+    pypypy3: pypy3
+deps =
+    -e.[test]
+    psycopg2
+    django1.10: Django>=1.10,<1.11
+    django1.11: Django>=1.11,<1.12
+    django2.0: Django>=2.0
+    django2.1: Django>=2.1
+    djangomaster: https://github.com/django/django/archive/master.zip
+commands = {posargs:py.test --cov=graphene_django graphene_django examples}
+
+[testenv:lint]
+basepython = python
+deps =
+    prospector
+commands = prospector graphene_django -0