Django support (WIP)

Author: dittos

.travis.yml

@@ -4,7 +4,7 @@ python:
 - 2.7
 install:
 - pip install pytest flake8
-- pip install -e .
+- pip install -e .[django]
 script:
 - py.test
 - flake8

graphql/api.py

@@ -90,6 +90,11 @@ def resolve(self, schema):
             args, self.resolver, self.deprecation_reason, self.description
         )
 
+    def __call__(self, resolver):
+        # Called when used as decorator
+        self.resolver = resolver
+        return self
+
 
 class LazyArgument(object):
     def __init__(self, typerefspec, default_value=None, description=None):

graphql/contrib/__init__.py

@@ -0,0 +1,20 @@
+from graphql.api import Schema
+from django.db import models
+
+
+class DjangoSchema(Schema):
+    def __init__(self):
+        super(DjangoSchema, self).__init__()
+
+    def _define_object(self, dct):
+        # Override
+        model = dct.get('__model__')
+        if model:
+            for field in model._meta.get_fields():
+                if field.is_relation:
+                    pass  # TODO
+                else:
+                    if isinstance(field, models.CharField):
+                        dct[field.name] = self.Field(self.String)
+                    # ... TODO
+        return super(DjangoSchema, self)._define_object(dct)

graphql/contrib/django/__init__.py

@@ -49,7 +49,7 @@ def run_tests(self):
     install_requires=[],
     tests_require=['pytest>=2.7.2'],
     extras_require={
-        'django': [],
+        'django': ['Django>=1.8.0,<1.9'],
     },
 
     cmdclass={'test': PyTest},

setup.py

@@ -0,0 +1,48 @@
+import django
+from django.conf import settings
+from graphql import graphql
+from graphql.contrib.django import DjangoSchema
+
+settings.configure(
+    DATABASES={
+        'INSTALLED_APPS': [
+            'graphql',
+        ],
+        'default': {
+            'ENGINE': 'django.db.backends.sqlite3',
+        }
+    }
+)
+
+from django.db import models
+
+class Human(models.Model):
+    name = models.CharField()
+
+    class Meta:
+        app_label = 'graphql'
+
+django.setup()
+
+
+def test_auto_definition():
+    gql = DjangoSchema()
+
+    class HumanType(gql.ObjectType):
+        __typename__ = 'Human'
+        __model__ = Human
+
+    class QueryRoot(gql.QueryRoot):
+        @gql.Field(gql.List(gql.NonNull(HumanType)))
+        def humans(self, *args, **kwargs):
+            return [Human(name='hi')]
+
+    result = graphql(gql.to_internal(), '''{
+        humans { name }
+    }''')
+    assert not result.errors
+    assert result.data == {
+        'humans': [
+            {'name': 'hi'}
+        ]
+    }

tests/contrib_django/test_django.py

@@ -4,6 +4,7 @@ envlist = py27
 [testenv]
 deps=
     pytest>=2.7.2
+    django>=1.8.0,<1.9
     flake8
 commands=
     py.test