Merge branch 'master' into master

.travis.yml

@@ -6,7 +6,7 @@ python:
 - 3.5
 - pypy
 before_install:
-  - |
+- |
   if [ "$TRAVIS_PYTHON_VERSION" = "pypy" ]; then
     export PYENV_ROOT="$HOME/.pyenv"
     if [ -f "$PYENV_ROOT/bin/pyenv" ]; then
@@ -52,3 +52,10 @@ matrix:
   include:
   - python: '2.7'
     env: TEST_TYPE=lint
+deploy:
+  provider: pypi
+  user: syrusakbary
+  on:
+    tags: true
+  password:
+    secure: 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

README.md

@@ -83,3 +83,21 @@ After developing, the full test suite can be evaluated by running:
 ```sh
 python setup.py test # Use --pytest-args="-v -s" for verbose mode
 ```
+
+
+### Documentation
+
+The documentation is generated using the excellent [Sphinx](http://www.sphinx-doc.org/) and a custom theme.
+
+The documentation dependencies are installed by running:
+
+```sh
+cd docs
+pip install -r requirements.txt
+```
+
+Then to produce a HTML version of the documentation:
+
+```sh
+make html
+```

README.rst

@@ -1,37 +1,38 @@
-Please read `UPGRADE-v1.0.md`_ to learn how to upgrade to Graphene ``1.0``.
+Please read `UPGRADE-v1.0.md </UPGRADE-v1.0.md>`__ to learn how to
+upgrade to Graphene ``1.0``.
 
 --------------
 
-|Graphene Logo| `Graphene`_ |Build Status| |PyPI version| |Coverage Status|
-===========================================================================
+|Graphene Logo| `Graphene <http://graphene-python.org>`__ |Build Status| |PyPI version| |Coverage Status|
+=========================================================================================================
 
-`Graphene`_ is a Python library for building GraphQL schemas/types fast
-and easily.
+`Graphene <http://graphene-python.org>`__ is a Python library for
+building GraphQL schemas/types fast and easily.
 
 -  **Easy to use:** Graphene helps you use GraphQL in Python without
    effort.
 -  **Relay:** Graphene has builtin support for Relay
 -  **Data agnostic:** Graphene supports any kind of data source: SQL
-   (Django, SQLAlchemy), NoSQL, custom Python objects, etc. We believe that
-   by providing a complete API you could plug Graphene anywhere your
-   data lives and make your data available through GraphQL.
+   (Django, SQLAlchemy), NoSQL, custom Python objects, etc. We believe
+   that by providing a complete API you could plug Graphene anywhere
+   your data lives and make your data available through GraphQL.
 
 Integrations
 ------------
 
 Graphene has multiple integrations with different frameworks:
 
-+---------------------+-------------------------------------+
++---------------------+----------------------------------------------------------------------------------------------+
 | integration         | Package                                                                                      |
-+=====================+=====================================+
-| Django              | `graphene-django`_                  |
-+---------------------+-------------------------------------+
-| SQLAlchemy          | `graphene-sqlalchemy`_              |
-+---------------------+-------------------------------------+
-| Google App Engine   | `graphene-gae`_                     |
-+---------------------+-------------------------------------+
-| Peewee              | *In progress* (`Tracking Issue`_)   |
-+---------------------+-------------------------------------+
++=====================+==============================================================================================+
+| Django              | `graphene-django <https://github.com/graphql-python/graphene-django/>`__                     |
++---------------------+----------------------------------------------------------------------------------------------+
+| SQLAlchemy          | `graphene-sqlalchemy <https://github.com/graphql-python/graphene-sqlalchemy/>`__             |
++---------------------+----------------------------------------------------------------------------------------------+
+| Google App Engine   | `graphene-gae <https://github.com/graphql-python/graphene-gae/>`__                           |
++---------------------+----------------------------------------------------------------------------------------------+
+| Peewee              | *In progress* (`Tracking Issue <https://github.com/graphql-python/graphene/issues/289>`__)   |
++---------------------+----------------------------------------------------------------------------------------------+
 
 Installation
 ------------
@@ -45,7 +46,8 @@ For instaling graphene, just run this command in your shell
 1.0 Upgrade Guide
 -----------------
 
-Please read `UPGRADE-v1.0.md`_ to learn how to upgrade.
+Please read `UPGRADE-v1.0.md </UPGRADE-v1.0.md>`__ to learn how to
+upgrade.
 
 Examples
 --------
@@ -74,10 +76,11 @@ Then Querying ``graphene.Schema`` is as simple as:
     result = schema.execute(query)
 
 If you want to learn even more, you can also check the following
-`examples`_:
+`examples <examples/>`__:
 
--  **Basic Schema**: `Starwars example`_
--  **Relay Schema**: `Starwars Relay example`_
+-  **Basic Schema**: `Starwars example <examples/starwars>`__
+-  **Relay Schema**: `Starwars Relay
+   example <examples/starwars_relay>`__
 
 Contributing
 ------------
@@ -94,15 +97,24 @@ After developing, the full test suite can be evaluated by running:
 
     python setup.py test # Use --pytest-args="-v -s" for verbose mode
 
-.. _UPGRADE-v1.0.md: /UPGRADE-v1.0.md
-.. _Graphene: http://graphene-python.org
-.. _graphene-django: https://github.com/graphql-python/graphene-django/
-.. _graphene-sqlalchemy: https://github.com/graphql-python/graphene-sqlalchemy/
-.. _graphene-gae: https://github.com/graphql-python/graphene-gae/
-.. _Tracking Issue: https://github.com/graphql-python/graphene/issues/289
-.. _examples: examples/
-.. _Starwars example: examples/starwars
-.. _Starwars Relay example: examples/starwars_relay
+Documentation
+~~~~~~~~~~~~~
+
+The documentation is generated using the excellent
+`Sphinx <http://www.sphinx-doc.org/>`__ and a custom theme.
+
+The documentation dependencies are installed by running:
+
+.. code:: sh
+
+    cd docs
+    pip install -r requirements.txt
+
+Then to produce a HTML version of the documentation:
+
+.. code:: sh
+
+    make html
 
 .. |Graphene Logo| image:: http://graphene-python.org/favicon.png
 .. |Build Status| image:: https://travis-ci.org/graphql-python/graphene.svg?branch=master

docs/Makefile

@@ -223,3 +223,7 @@ dummy:
 	$(SPHINXBUILD) -b dummy $(ALLSPHINXOPTS) $(BUILDDIR)/dummy
 	@echo
 	@echo "Build finished. Dummy builder generates no files."
+
+.PHONY: livehtml
+livehtml:
+	sphinx-autobuild -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html

docs/execution/index.rst

@@ -0,0 +1,40 @@
+=========
+Execution
+=========
+
+For executing a query a schema, you can directly call the ``execute`` method on it.
+
+
+.. code:: python
+    
+    schema = graphene.Schema(...)
+    result = schema.execute('{ name }')
+
+``result`` represents he result of execution. ``result.data`` is the result of executing the query, ``result.errors`` is ``None`` if no errors occurred, and is a non-empty list if an error occurred.
+
+
+Context
+_______
+
+You can pass context to a query via ``context_value``.
+
+
+.. code:: python
+
+    class Query(graphene.ObjectType):
+        name = graphene.String()
+
+        def resolve_name(self, args, context, info):
+            return context.get('name')
+    
+    schema = graphene.Schema(Query)
+    result = schema.execute('{ name }', context_value={'name': 'Syrus'})
+
+
+Middleware
+__________
+
+.. toctree::
+   :maxdepth: 1
+
+   middleware

docs/execution/middleware.rst

@@ -0,0 +1,44 @@
+Middleware
+==========
+
+You can use ``middleware`` to affect the evaluation of fields in your schema.
+
+A middleware is any object that responds to ``resolve(*args, next_middleware)``.
+
+Inside that method, it should either:
+
+- Send ``resolve`` to the next middleware to continue the evaluation; or
+- Return a value to end the evaluation early.
+
+
+Resolve arguments
+-----------------
+
+Middlewares ``resolve`` is invoked with several arguments:
+
+- ``next`` represents the execution chain. Call ``next`` to continue evalution.
+- ``root`` is the root value object passed throughout the query.
+- ``args`` is the hash of arguments passed to the field.
+- ``context`` is the context object passed throughout the query.
+- ``info`` is the resolver info.
+
+
+Example
+-------
+
+This middleware only continues evaluation if the ``field_name`` is not ``'user'``
+
+.. code:: python
+
+	class AuthorizationMiddleware(object):
+		def resolve(self, next, root, args, context, info):
+			if info.field_name == 'user':
+				return None
+			return next(root, args, context, info)
+
+
+And then execute it with:
+
+.. code:: python
+
+	result = schema.execute('THE QUERY', middleware=[AuthorizationMiddleware()])

docs/index.rst

@@ -8,6 +8,7 @@ Contents:
 
    quickstart
    types/index
+   execution/index
    relay/index
 
 Integrations

docs/quickstart.rst

@@ -1,6 +1,12 @@
 Getting started
 ===============
 
+What is GraphQL?
+----------------
+
+For an introduction to GraphQL and an overview of its concepts, please refer
+to `the official introduction <http://graphql.org/learn/>`.
+
 Let’s build a basic GraphQL schema from scratch.
 
 Requirements

docs/types/interfaces.rst

@@ -23,14 +23,14 @@ and ``Droid`` are two implementations of that interface.
         name = graphene.String()
 
     # Human is a Character implementation
-    class Human(ObjectType):
+    class Human(graphene.ObjectType):
         class Meta:
             interfaces = (Character, )
 
         born_in = graphene.String()
 
     # Droid is a Character implementation
-    class Droid(Character):
+    class Droid(graphene.ObjectType):
         class Meta:
             interfaces = (Character, )
 

docs/types/mutations.rst

@@ -76,3 +76,69 @@ We should receive:
             "ok": true
         }
     }
+
+InputFields and InputObjectTypes
+----------------------
+InputFields are used in mutations to allow nested input data for mutations
+
+To use an InputField you define an InputObjectType that specifies the structure of your input data
+
+
+
+
+.. code:: python
+
+    import graphene
+
+    class PersonInput(graphene.InputObjectType):
+        name = graphene.String()
+        age = graphene.Int()
+
+    class CreatePerson(graphene.Mutation):
+        class Input:
+            person_data = graphene.InputField(PersonInput)
+
+        person = graphene.Field(lambda: Person)
+
+        def mutate(self, args, context, info):
+            p_data = args.get('person_data')
+
+            name = p_data.get('name')
+            age = p_data.get('age')
+
+            person = Person(name=name, age=age)
+            return CreatePerson(person=person)
+
+
+Note that  **name** and **age** are part of **person_data** now
+
+Using the above mutation your new query would look like this:
+
+.. code:: graphql
+
+    mutation myFirstMutation {
+        createPerson(personData: {name:"Peter", age: 24}) {
+            person {
+                name,
+                age
+            }
+        }
+    }
+
+InputObjectTypes can also be fields of InputObjectTypes allowing you to have
+as complex of input data as you need
+
+.. code:: python
+
+    import graphene
+
+    class LatLngInput(graphene.InputObjectType):
+        lat = graphene.Float()
+        lng = graphene.Float()
+
+    #A location has a latlng associated to it
+    class LocationInput(graphene.InputObjectType):
+        name = graphene.String()
+        latlng = graphene.InputField(LatLngInputType)
+
+

docs/types/scalars.rst

@@ -9,9 +9,10 @@ Graphene defines the following base Scalar Types:
 - ``graphene.Boolean``
 - ``graphene.ID``
 
-Graphene also provides custom scalars for Dates and JSON:
+Graphene also provides custom scalars for Dates, Times, and JSON:
 
 - ``graphene.types.datetime.DateTime``
+- ``graphene.types.datetime.Time``
 - ``graphene.types.json.JSONString``
 
 
@@ -24,8 +25,8 @@ The following is an example for creating a DateTime scalar:
 .. code:: python
 
     import datetime
-    from graphene.core.classtypes import Scalar
-    from graphql.core.language import ast
+    from graphene.types import Scalar
+    from graphql.language import ast
 
     class DateTime(Scalar):
         '''DateTime Scalar Description'''
@@ -57,14 +58,18 @@ Scalars mounted in a ``ObjectType``, ``Interface`` or ``Mutation`` act as
 
     # Is equivalent to:
     class Person(graphene.ObjectType):
-        name = graphene.Field(graphene.String())
+        name = graphene.Field(graphene.String)
 
 
+**Note:** when using the ``Field`` constructor directly, pass the type and
+not an instance.
+
 Types mounted in a ``Field`` act as ``Argument``\ s.
 
+
 .. code:: python
 
-    graphene.Field(graphene.String(), to=graphene.String())
+    graphene.Field(graphene.String, to=graphene.String())
 
     # Is equivalent to:
-    graphene.Field(graphene.String(), to=graphene.Argument(graphene.String()))
+    graphene.Field(graphene.String, to=graphene.Argument(graphene.String()))

examples/context_example.py

@@ -0,0 +1,39 @@
+import graphene
+
+
+class User(graphene.ObjectType):
+    id = graphene.ID()
+    name = graphene.String()
+
+
+class Query(graphene.ObjectType):
+    me = graphene.Field(User)
+
+    def resolve_me(self, args, context, info):
+        return context['user']
+
+schema = graphene.Schema(query=Query)
+query = '''
+    query something{
+      me {
+        id
+        name
+      }
+    }
+'''
+
+
+def test_query():
+    result = schema.execute(query, context_value={'user': User(id='1', name='Syrus')})
+    assert not result.errors
+    assert result.data == {
+        'me': {
+            'id': '1',
+            'name': 'Syrus',
+        }
+    }
+
+
+if __name__ == '__main__':
+    result = schema.execute(query, context_value={'user': User(id='X', name='Console')})
+    print(result.data['me'])

examples/starwars_relay/tests/test_objectidentification.py

@@ -56,7 +56,7 @@ type Ship implements Node {
 
 type ShipConnection {
   pageInfo: PageInfo!
-  edges: [ShipEdge]
+  edges: [ShipEdge]!
 }
 
 type ShipEdge {

graphene/__init__.py

@@ -10,7 +10,7 @@ except NameError:
     __SETUP__ = False
 
 
-VERSION = (1, 0, 2, 'final', 0)
+VERSION = (1, 1, 3, 'final', 0)
 
 __version__ = get_version(VERSION)
 

graphene/pyutils/enum.py

@@ -71,18 +71,18 @@ def _is_descriptor(obj):
 
 def _is_dunder(name):
     """Returns True if a __dunder__ name, False otherwise."""
-    return (name[:2] == name[-2:] == '__' and
+    return (len(name) > 4 and
+            name[:2] == name[-2:] == '__' and
             name[2:3] != '_' and
-            name[-3:-2] != '_' and
-            len(name) > 4)
+            name[-3:-2] != '_')
 
 
 def _is_sunder(name):
     """Returns True if a _sunder_ name, False otherwise."""
-    return (name[0] == name[-1] == '_' and
+    return (len(name) > 2 and
+            name[0] == name[-1] == '_' and
             name[1:2] != '_' and
-            name[-2:-1] != '_' and
-            len(name) > 2)
+            name[-2:-1] != '_')
 
 
 def _make_class_unpicklable(cls):

graphene/pyutils/tests/test_enum.py

@@ -0,0 +1,41 @@
+from ..enum import _is_dunder, _is_sunder
+
+
+def test__is_dunder():
+    dunder_names = [
+        '__i__',
+        '__test__',
+    ]
+    non_dunder_names = [
+        'test',
+        '__test',
+        '_test',
+        '_test_',
+        'test__',
+        '',
+    ]
+
+    for name in dunder_names:
+        assert _is_dunder(name) is True
+
+    for name in non_dunder_names:
+        assert _is_dunder(name) is False
+
+def test__is_sunder():
+    sunder_names = [
+        '_i_',
+        '_test_',
+    ]
+
+    non_sunder_names = [
+        '__i__',
+        '_i__',
+        '__i_',
+        '',
+    ]
+
+    for name in sunder_names:
+        assert _is_sunder(name) is True
+
+    for name in non_sunder_names:
+        assert _is_sunder(name) is False

graphene/relay/connection.py

@@ -5,6 +5,7 @@ from functools import partial
 import six
 
 from graphql_relay import connection_from_list
+from promise import is_thenable, promisify
 
 from ..types import (AbstractType, Boolean, Enum, Int, Interface, List, NonNull, Scalar, String,
                      Union)
@@ -81,7 +82,7 @@ class ConnectionMeta(ObjectTypeMeta):
 
         class ConnectionBase(AbstractType):
             page_info = Field(PageInfo, name='pageInfo', required=True)
-            edges = List(edge)
+            edges = NonNull(List(edge))
 
         bases = (ConnectionBase, ) + bases
         attrs = dict(attrs, _meta=options, Edge=edge)
@@ -114,32 +115,41 @@ class IterableConnectionField(Field):
             connection_type = type
         assert issubclass(connection_type, Connection), (
             '{} type have to be a subclass of Connection. Received "{}".'
-        ).format(str(self), connection_type)
+        ).format(self.__class__.__name__, connection_type)
         return connection_type
 
     @classmethod
-    def connection_resolver(cls, resolver, connection, root, args, context, info):
-        resolved = resolver(root, args, context, info)
-
-        if isinstance(resolved, connection):
+    def resolve_connection(cls, connection_type, args, resolved):
+        if isinstance(resolved, connection_type):
             return resolved
 
         assert isinstance(resolved, Iterable), (
             'Resolved value from the connection field have to be iterable or instance of {}. '
             'Received "{}"'
-        ).format(connection, resolved)
+        ).format(connection_type, resolved)
         connection = connection_from_list(
             resolved,
             args,
-            connection_type=connection,
-            edge_type=connection.Edge,
+            connection_type=connection_type,
+            edge_type=connection_type.Edge,
             pageinfo_type=PageInfo
         )
         connection.iterable = resolved
         return connection
 
+    @classmethod
+    def connection_resolver(cls, resolver, connection_type, root, args, context, info):
+        resolved = resolver(root, args, context, info)
+
+        on_resolve = partial(cls.resolve_connection, connection_type, args)
+        if is_thenable(resolved):
+            return promisify(resolved).then(on_resolve)
+
+        return on_resolve(resolved)
+
     def get_resolver(self, parent_resolver):
         resolver = super(IterableConnectionField, self).get_resolver(parent_resolver)
         return partial(self.connection_resolver, resolver, self.type)
 
+
 ConnectionField = IterableConnectionField

graphene/relay/node.py

@@ -12,9 +12,9 @@ def is_node(objecttype):
     '''
     Check if the given objecttype has Node as an interface
     '''
-    assert issubclass(objecttype, ObjectType), (
-        'Only ObjectTypes can have a Node interface.'
-    )
+    if not issubclass(objecttype, ObjectType):
+        return False
+
     for i in objecttype._meta.interfaces:
         if issubclass(i, Node):
             return True
@@ -35,24 +35,26 @@ def get_default_connection(cls):
 
 class GlobalID(Field):
 
-    def __init__(self, node, *args, **kwargs):
-        super(GlobalID, self).__init__(ID, *args, **kwargs)
-        self.node = node
+    def __init__(self, node=None, parent_type=None, required=True, *args, **kwargs):
+        super(GlobalID, self).__init__(ID, required=required, *args, **kwargs)
+        self.node = node or Node
+        self.parent_type_name = parent_type._meta.name if parent_type else None
 
     @staticmethod
-    def id_resolver(parent_resolver, node, root, args, context, info):
-        id = parent_resolver(root, args, context, info)
-        return node.to_global_id(info.parent_type.name, id)  # root._meta.name
+    def id_resolver(parent_resolver, node, root, args, context, info, parent_type_name=None):
+        type_id = parent_resolver(root, args, context, info)
+        parent_type_name = parent_type_name or info.parent_type.name
+        return node.to_global_id(parent_type_name, type_id)  # root._meta.name
 
     def get_resolver(self, parent_resolver):
-        return partial(self.id_resolver, parent_resolver, self.node)
+        return partial(self.id_resolver, parent_resolver, self.node, parent_type_name=self.parent_type_name)
 
 
 class NodeMeta(InterfaceMeta):
 
     def __new__(cls, name, bases, attrs):
         cls = InterfaceMeta.__new__(cls, name, bases, attrs)
-        cls._meta.fields['id'] = GlobalID(cls, required=True, description='The ID of the object.')
+        cls._meta.fields['id'] = GlobalID(cls, description='The ID of the object.')
         return cls
 
 

graphene/relay/tests/test_connection.py

@@ -28,8 +28,9 @@ def test_connection():
     pageinfo_field = fields['page_info']
 
     assert isinstance(edge_field, Field)
-    assert isinstance(edge_field.type, List)
-    assert edge_field.type.of_type == MyObjectConnection.Edge
+    assert isinstance(edge_field.type, NonNull)
+    assert isinstance(edge_field.type.of_type, List)
+    assert edge_field.type.of_type.of_type == MyObjectConnection.Edge
 
     assert isinstance(pageinfo_field, Field)
     assert isinstance(pageinfo_field.type, NonNull)

graphene/relay/tests/test_connection_query.py

@@ -1,6 +1,7 @@
 from collections import OrderedDict
 
 from graphql_relay.utils import base64
+from promise import Promise
 
 from ...types import ObjectType, Schema, String
 from ..connection import ConnectionField, PageInfo
@@ -20,12 +21,16 @@ class Letter(ObjectType):
 class Query(ObjectType):
     letters = ConnectionField(Letter)
     connection_letters = ConnectionField(Letter)
+    promise_letters = ConnectionField(Letter)
 
     node = Node.Field()
 
     def resolve_letters(self, args, context, info):
         return list(letters.values())
 
+    def resolve_promise_letters(self, args, context, info):
+        return Promise.resolve(list(letters.values()))
+
     def resolve_connection_letters(self, args, context, info):
         return Letter.Connection(
             page_info=PageInfo(
@@ -228,3 +233,38 @@ def test_connection_type_nodes():
             }
         }
     }
+
+
+def test_connection_promise():
+    result = schema.execute('''
+    {
+        promiseLetters(first:1) {
+            edges {
+                node {
+                    id
+                    letter
+                }
+            }
+            pageInfo {
+                hasPreviousPage
+                hasNextPage
+            }
+        }
+    }
+    ''')
+
+    assert not result.errors
+    assert result.data == {
+        'promiseLetters': {
+            'edges': [{
+                'node': {
+                    'id': 'TGV0dGVyOjA=',
+                    'letter': 'A',
+                },
+            }],
+            'pageInfo': {
+                'hasPreviousPage': False,
+                'hasNextPage': True,
+            }
+        }
+    }

graphene/relay/tests/test_global_id.py

@@ -0,0 +1,60 @@
+from graphql_relay import to_global_id
+
+from ..node import Node, GlobalID
+from ...types import NonNull, ID, ObjectType, String
+from ...types.definitions import GrapheneObjectType
+
+
+class CustomNode(Node):
+
+    class Meta:
+        name = 'Node'
+
+
+class User(ObjectType):
+
+    class Meta:
+        interfaces = [CustomNode]
+    name = String()
+
+
+class Info(object):
+
+    def __init__(self, parent_type):
+        self.parent_type = GrapheneObjectType(
+            graphene_type=parent_type,
+            name=parent_type._meta.name,
+            description=parent_type._meta.description,
+            fields=None,
+            is_type_of=parent_type.is_type_of,
+            interfaces=None
+        )
+
+
+def test_global_id_defaults_to_required_and_node():
+    gid = GlobalID()
+    assert isinstance(gid.type, NonNull)
+    assert gid.type.of_type == ID
+    assert gid.node == Node
+
+
+def test_global_id_allows_overriding_of_node_and_required():
+    gid = GlobalID(node=CustomNode, required=False)
+    assert gid.type == ID
+    assert gid.node == CustomNode
+
+
+def test_global_id_defaults_to_info_parent_type():
+    my_id = '1'
+    gid = GlobalID()
+    id_resolver = gid.get_resolver(lambda *_: my_id)
+    my_global_id = id_resolver(None, None, None, Info(User))
+    assert my_global_id == to_global_id(User._meta.name, my_id)
+
+
+def test_global_id_allows_setting_customer_parent_type():
+    my_id = '1'
+    gid = GlobalID(parent_type=User)
+    id_resolver = gid.get_resolver(lambda *_: my_id)
+    my_global_id = id_resolver(None, None, None, None)
+    assert my_global_id == to_global_id(User._meta.name, my_id)

graphene/tests/issues/test_313.py

@@ -0,0 +1,52 @@
+# https://github.com/graphql-python/graphene/issues/313
+
+import graphene
+from graphene import resolve_only_args
+
+class Success(graphene.ObjectType):
+    yeah = graphene.String()
+
+
+class Error(graphene.ObjectType):
+    message = graphene.String()
+
+
+class CreatePostResult(graphene.Union):
+    class Meta:
+        types = [Success, Error]
+
+
+class CreatePost(graphene.Mutation):
+    class Input:
+        text = graphene.String(required=True)
+
+    result = graphene.Field(CreatePostResult)
+
+    @resolve_only_args
+    def mutate(self, text):
+        result = Success(yeah='yeah')
+
+        return CreatePost(result=result)
+
+
+class Mutations(graphene.ObjectType):
+    create_post = CreatePost.Field()
+
+# tests.py
+
+def test_create_post():
+    query_string = '''
+    mutation {
+      createPost(text: "Try this out") {
+        result {
+          __typename
+        }
+      }
+    }
+    '''
+
+    schema = graphene.Schema(mutation=Mutations)
+    result = schema.execute(query_string)
+
+    assert not result.errors
+    assert result.data['createPost']['result']['__typename'] == 'Success'

graphene/tests/issues/test_356.py

@@ -0,0 +1,24 @@
+# https://github.com/graphql-python/graphene/issues/356
+
+import pytest
+import graphene
+from graphene import relay
+
+class SomeTypeOne(graphene.ObjectType):
+    pass
+
+class SomeTypeTwo(graphene.ObjectType):
+    pass
+
+class MyUnion(graphene.Union):
+    class Meta:
+        types = (SomeTypeOne, SomeTypeTwo)
+
+def test_issue():
+    with pytest.raises(Exception) as exc_info:
+        class Query(graphene.ObjectType):
+            things = relay.ConnectionField(MyUnion)
+
+        schema = graphene.Schema(query=Query)
+
+    assert str(exc_info.value) == 'IterableConnectionField type have to be a subclass of Connection. Received "MyUnion".'

graphene/types/argument.py

@@ -1,11 +1,12 @@
 from collections import OrderedDict
 from itertools import chain
 
-from ..utils.orderedtype import OrderedType
+from .mountedtype import MountedType
 from .structures import NonNull
+from .dynamic import Dynamic
 
 
-class Argument(OrderedType):
+class Argument(MountedType):
 
     def __init__(self, type, default_value=None, description=None, name=None, required=False, _creation_counter=None):
         super(Argument, self).__init__(_creation_counter=_creation_counter)
@@ -27,14 +28,33 @@ class Argument(OrderedType):
         )
 
 
-def to_arguments(args, extra_args):
+def to_arguments(args, extra_args=None):
     from .unmountedtype import UnmountedType
+    from .field import Field
+    from .inputfield import InputField
+    if extra_args:
         extra_args = sorted(extra_args.items(), key=lambda f: f[1])
+    else:
+        extra_args = []
     iter_arguments = chain(args.items(), extra_args)
     arguments = OrderedDict()
     for default_name, arg in iter_arguments:
+        if isinstance(arg, Dynamic):
+            arg = arg.get_type()
+            if arg is None:
+                # If the Dynamic type returned None
+                # then we skip the Argument
+                continue
+
         if isinstance(arg, UnmountedType):
-            arg = arg.Argument()
+            arg = Argument.mount(arg)
+
+        if isinstance(arg, (InputField, Field)):
+            raise ValueError('Expected {} to be Argument, but received {}. Try using Argument({}).'.format(
+                default_name,
+                type(arg).__name__,
+                arg.type
+            ))
 
         if not isinstance(arg, Argument):
             raise ValueError('Unknown argument "{}".'.format(default_name))

graphene/types/datetime.py

@@ -29,11 +29,37 @@ class DateTime(Scalar):
         )
         return dt.isoformat()
 
-    @staticmethod
-    def parse_literal(node):
+    @classmethod
+    def parse_literal(cls, node):
         if isinstance(node, ast.StringValue):
-            return iso8601.parse_date(node.value)
+            return cls.parse_value(node.value)
 
     @staticmethod
     def parse_value(value):
         return iso8601.parse_date(value)
+
+
+class Time(Scalar):
+    '''
+    The `Time` scalar type represents a Time value as
+    specified by
+    [iso8601](https://en.wikipedia.org/wiki/ISO_8601).
+    '''
+    epoch_date = '1970-01-01'
+
+    @staticmethod
+    def serialize(time):
+        assert isinstance(time, datetime.time), (
+            'Received not compatible time "{}"'.format(repr(time))
+        )
+        return time.isoformat()
+
+    @classmethod
+    def parse_literal(cls, node):
+        if isinstance(node, ast.StringValue):
+            return cls.parse_value(node.value)
+
+    @classmethod
+    def parse_value(cls, value):
+        dt = iso8601.parse_date('{}T{}'.format(cls.epoch_date, value))
+        return datetime.time(dt.hour, dt.minute, dt.second, dt.microsecond, dt.tzinfo)

graphene/types/dynamic.py

@@ -1,9 +1,9 @@
 import inspect
 
-from ..utils.orderedtype import OrderedType
+from .mountedtype import MountedType
 
 
-class Dynamic(OrderedType):
+class Dynamic(MountedType):
     '''
     A Dynamic Type let us get the type in runtime when we generate
     the schema. So we can have lazy fields.

graphene/types/enum.py

@@ -58,5 +58,10 @@ class Enum(six.with_metaclass(EnumTypeMeta, UnmountedType)):
     kind of type, often integers.
     '''
 
-    def get_type(self):
-        return type(self)
+    @classmethod
+    def get_type(cls):
+        '''
+        This function is called when the unmounted type (Enum instance)
+        is mounted (as a Field, InputField or Argument)
+        '''
+        return cls

graphene/types/field.py

@@ -2,8 +2,8 @@ import inspect
 from collections import Mapping, OrderedDict
 from functools import partial
 
-from ..utils.orderedtype import OrderedType
 from .argument import Argument, to_arguments
+from .mountedtype import MountedType
 from .structures import NonNull
 from .unmountedtype import UnmountedType
 
@@ -18,7 +18,7 @@ def source_resolver(source, root, args, context, info):
     return resolved
 
 
-class Field(OrderedType):
+class Field(MountedType):
 
     def __init__(self, type, args=None, resolver=None, source=None,
                  deprecation_reason=None, name=None, description=None,
@@ -60,7 +60,7 @@ class Field(OrderedType):
 
     @property
     def type(self):
-        if inspect.isfunction(self._type):
+        if inspect.isfunction(self._type) or type(self._type) is partial:
             return self._type()
         return self._type
 

graphene/types/inputfield.py

@@ -1,8 +1,8 @@
-from ..utils.orderedtype import OrderedType
+from .mountedtype import MountedType
 from .structures import NonNull
 
 
-class InputField(OrderedType):
+class InputField(MountedType):
 
     def __init__(self, type, name=None, default_value=None,
                  deprecation_reason=None, description=None,

graphene/types/inputobjecttype.py

@@ -50,4 +50,8 @@ class InputObjectType(six.with_metaclass(InputObjectTypeMeta, UnmountedType)):
 
     @classmethod
     def get_type(cls):
+        '''
+        This function is called when the unmounted type (InputObjectType instance)
+        is mounted (as a Field, InputField or Argument)
+        '''
         return cls

graphene/types/mountedtype.py

@@ -0,0 +1,21 @@
+from ..utils.orderedtype import OrderedType
+from .unmountedtype import UnmountedType
+
+
+class MountedType(OrderedType):
+
+    @classmethod
+    def mount(cls, unmounted):  # noqa: N802
+        '''
+        Mount the UnmountedType instance
+        '''
+        assert isinstance(unmounted, UnmountedType), (
+            '{} can\'t mount {}'
+        ).format(cls.__name__, repr(unmounted))
+
+        return cls(
+            unmounted.get_type(),
+            *unmounted.args,
+            _creation_counter=unmounted.creation_counter,
+            **unmounted.kwargs
+        )

graphene/types/options.py

@@ -19,18 +19,18 @@ class Options(object):
         for attr_name, value in defaults.items():
             if attr_name in meta_attrs:
                 value = meta_attrs.pop(attr_name)
-            elif hasattr(meta, attr_name):
-                value = getattr(meta, attr_name)
             setattr(self, attr_name, value)
 
-        # If meta_attrs is not empty, it implicit means
+        # If meta_attrs is not empty, it implicitly means
         # it received invalid attributes
         if meta_attrs:
             raise TypeError(
                 "Invalid attributes: {}".format(
-                    ','.join(meta_attrs.keys())
+                    ', '.join(sorted(meta_attrs.keys()))
                 )
             )
 
     def __repr__(self):
-        return '<Meta \n{} >'.format(props(self))
+        options_props = props(self)
+        props_as_attrs = ' '.join(['{}={}'.format(key, value) for key, value in options_props.items()])
+        return '<Options {}>'.format(props_as_attrs)

graphene/types/scalars.py

@@ -43,8 +43,13 @@ class Scalar(six.with_metaclass(ScalarTypeMeta, UnmountedType)):
 
     @classmethod
     def get_type(cls):
+        '''
+        This function is called when the unmounted type (Scalar instance)
+        is mounted (as a Field, InputField or Argument)
+        '''
         return cls
 
+
 # As per the GraphQL Spec, Integers are only treated as valid when a valid
 # 32-bit signed integer, providing the broadest support across platforms.
 #

graphene/types/schema.py

@@ -6,6 +6,7 @@ from graphql.type.introspection import IntrospectionSchema
 from graphql.utils.introspection_query import introspection_query
 from graphql.utils.schema_printer import print_schema
 
+from .definitions import GrapheneGraphQLType
 from .typemap import TypeMap, is_graphene_type
 
 
@@ -46,6 +47,20 @@ class Schema(GraphQLSchema):
     def get_subscription_type(self):
         return self.get_graphql_type(self._subscription)
 
+    def __getattr__(self, type_name):
+        '''
+        This function let the developer select a type in a given schema
+        by accessing its attrs.
+
+        Example: using schema.Query for accessing the "Query" type in the Schema
+        '''
+        _type = super(Schema, self).get_type(type_name)
+        if _type is None:
+            raise AttributeError('Type "{}" not found in the Schema'.format(type_name))
+        if isinstance(_type, GrapheneGraphQLType):
+            return _type.graphene_type
+        return _type
+
     def get_graphql_type(self, _type):
         if not _type:
             return _type
@@ -61,9 +76,6 @@ class Schema(GraphQLSchema):
     def execute(self, *args, **kwargs):
         return graphql(self, *args, **kwargs)
 
-    def register(self, object_type):
-        self.types.append(object_type)
-
     def introspect(self):
         return self.execute(introspection_query).data
 

graphene/types/structures.py

@@ -9,9 +9,22 @@ class Structure(UnmountedType):
 
     def __init__(self, of_type, *args, **kwargs):
         super(Structure, self).__init__(*args, **kwargs)
+        if not isinstance(of_type, Structure) and isinstance(of_type, UnmountedType):
+            cls_name = type(self).__name__
+            of_type_name = type(of_type).__name__
+            raise Exception("{} could not have a mounted {}() as inner type. Try with {}({}).".format(
+                cls_name,
+                of_type_name,
+                cls_name,
+                of_type_name,
+            ))
         self.of_type = of_type
 
     def get_type(self):
+        '''
+        This function is called when the unmounted type (List or NonNull instance)
+        is mounted (as a Field, InputField or Argument)
+        '''
         return self
 
 
@@ -52,7 +65,7 @@ class NonNull(Structure):
         super(NonNull, self).__init__(*args, **kwargs)
         assert not isinstance(self.of_type, NonNull), (
             'Can only create NonNull of a Nullable GraphQLType but got: {}.'
-        ).format(type)
+        ).format(self.of_type)
 
     def __str__(self):
         return '{}!'.format(self.of_type)

graphene/types/tests/test_argument.py

@@ -1,6 +1,8 @@
 import pytest
 
-from ..argument import Argument
+from ..argument import Argument, to_arguments
+from ..field import Field
+from ..inputfield import InputField
 from ..structures import NonNull
 from ..scalars import String
 
@@ -24,3 +26,38 @@ def test_argument_comparasion():
 def test_argument_required():
     arg = Argument(String, required=True)
     assert arg.type == NonNull(String)
+
+
+def test_to_arguments():
+    args = {
+        'arg_string': Argument(String),
+        'unmounted_arg': String(required=True)
+    }
+
+    my_args = to_arguments(args)
+    assert my_args == {
+        'arg_string': Argument(String),
+        'unmounted_arg': Argument(String, required=True)
+    }
+
+
+def test_to_arguments_raises_if_field():
+    args = {
+        'arg_string': Field(String),
+    }
+
+    with pytest.raises(ValueError) as exc_info:
+        to_arguments(args)
+    
+    assert str(exc_info.value) == 'Expected arg_string to be Argument, but received Field. Try using Argument(String).'
+
+
+def test_to_arguments_raises_if_inputfield():
+    args = {
+        'arg_string': InputField(String),
+    }
+
+    with pytest.raises(ValueError) as exc_info:
+        to_arguments(args)
+    
+    assert str(exc_info.value) == 'Expected arg_string to be Argument, but received InputField. Try using Argument(String).'

graphene/types/tests/test_datetime.py

@@ -1,18 +1,22 @@
 import datetime
 import pytz
 
-from ..datetime import DateTime
+from ..datetime import DateTime, Time
 from ..objecttype import ObjectType
 from ..schema import Schema
 
 
 class Query(ObjectType):
     datetime = DateTime(_in=DateTime(name='in'))
+    time = Time(_at=Time(name='at'))
 
     def resolve_datetime(self, args, context, info):
         _in = args.get('in')
         return _in
 
+    def resolve_time(self, args, context, info):
+        return args.get('at')
+
 schema = Schema(query=Query)
 
 
@@ -27,6 +31,17 @@ def test_datetime_query():
     }
 
 
+def test_time_query():
+    now = datetime.datetime.now().replace(tzinfo=pytz.utc)
+    time = datetime.time(now.hour, now.minute, now.second, now.microsecond, now.tzinfo)
+    isoformat = time.isoformat()
+
+    result = schema.execute('''{ time(at: "%s") }'''%isoformat)
+    assert not result.errors
+    assert result.data == {
+        'time': isoformat
+    }
+
 def test_datetime_query_variable():
     now = datetime.datetime.now().replace(tzinfo=pytz.utc)
     isoformat = now.isoformat()
@@ -39,3 +54,18 @@ def test_datetime_query_variable():
     assert result.data == {
         'datetime': isoformat
     }
+
+
+def test_time_query_variable():
+    now = datetime.datetime.now().replace(tzinfo=pytz.utc)
+    time = datetime.time(now.hour, now.minute, now.second, now.microsecond, now.tzinfo)
+    isoformat = time.isoformat()
+
+    result = schema.execute(
+        '''query Test($time: Time){ time(at: $time) }''',
+        variable_values={'time': isoformat}
+    )
+    assert not result.errors
+    assert result.data == {
+        'time': isoformat
+    }

graphene/types/tests/test_dynamic.py

@@ -0,0 +1,27 @@
+from ..structures import List, NonNull
+from ..scalars import String
+from ..dynamic import Dynamic
+
+
+def test_dynamic():
+    dynamic = Dynamic(lambda: String)
+    assert dynamic.get_type() == String
+    assert str(dynamic.get_type()) == 'String'
+
+
+def test_nonnull():
+    dynamic = Dynamic(lambda: NonNull(String))
+    assert dynamic.get_type().of_type == String
+    assert str(dynamic.get_type()) == 'String!'
+
+
+def test_list():
+    dynamic = Dynamic(lambda: List(String))
+    assert dynamic.get_type().of_type == String
+    assert str(dynamic.get_type()) == '[String]'
+
+
+def test_list_non_null():
+    dynamic = Dynamic(lambda: List(NonNull(String)))
+    assert dynamic.get_type().of_type.of_type == String
+    assert str(dynamic.get_type()) == '[String!]'

graphene/types/tests/test_enum.py

@@ -1,4 +1,7 @@
 from ..enum import Enum, PyEnum
+from ..field import Field
+from ..inputfield import InputField
+from ..argument import Argument
 
 
 def test_enum_construction():
@@ -72,3 +75,39 @@ def test_enum_value_from_class():
     assert RGB.RED.value == 1
     assert RGB.GREEN.value == 2
     assert RGB.BLUE.value == 3
+
+
+def test_enum_value_as_unmounted_field():
+    class RGB(Enum):
+        RED = 1
+        GREEN = 2
+        BLUE = 3
+
+    unmounted = RGB()
+    unmounted_field = unmounted.Field()
+    assert isinstance(unmounted_field, Field)
+    assert unmounted_field.type == RGB
+
+
+def test_enum_value_as_unmounted_inputfield():
+    class RGB(Enum):
+        RED = 1
+        GREEN = 2
+        BLUE = 3
+
+    unmounted = RGB()
+    unmounted_field = unmounted.InputField()
+    assert isinstance(unmounted_field, InputField)
+    assert unmounted_field.type == RGB
+
+
+def test_enum_value_as_unmounted_argument():
+    class RGB(Enum):
+        RED = 1
+        GREEN = 2
+        BLUE = 3
+
+    unmounted = RGB()
+    unmounted_field = unmounted.Argument()
+    assert isinstance(unmounted_field, Argument)
+    assert unmounted_field.type == RGB

graphene/types/tests/test_field.py

@@ -3,6 +3,7 @@ import pytest
 from ..argument import Argument
 from ..field import Field
 from ..structures import NonNull
+from ..scalars import String
 
 
 class MyInstance(object):
@@ -75,6 +76,20 @@ def test_field_source_func():
     assert field.resolver(MyInstance(), {}, None, None) == MyInstance.value_func()
 
 
+def test_field_source_as_argument():
+    MyType = object()
+    field = Field(MyType, source=String())
+    assert 'source' in field.args
+    assert field.args['source'].type == String
+
+
+def test_field_name_as_argument():
+    MyType = object()
+    field = Field(MyType, name=String())
+    assert 'name' in field.args
+    assert field.args['name'].type == String
+
+
 def test_field_source_argument_as_kw():
     MyType = object()
     field = Field(MyType, b=NonNull(True), c=Argument(None), a=NonNull(False))

graphene/types/tests/test_inputobjecttype.py

@@ -1,7 +1,9 @@
 
 from ..abstracttype import AbstractType
 from ..field import Field
+from ..argument import Argument
 from ..inputfield import InputField
+from ..objecttype import ObjectType
 from ..inputobjecttype import InputObjectType
 from ..unmountedtype import UnmountedType
 
@@ -61,6 +63,22 @@ def test_generate_inputobjecttype_unmountedtype():
     assert isinstance(MyInputObjectType._meta.fields['field'], InputField)
 
 
+def test_generate_inputobjecttype_as_argument():
+    class MyInputObjectType(InputObjectType):
+        field = MyScalar()
+
+    class MyObjectType(ObjectType):
+        field = Field(MyType, input=MyInputObjectType())
+    
+    assert 'field' in MyObjectType._meta.fields
+    field = MyObjectType._meta.fields['field']
+    assert isinstance(field, Field)
+    assert field.type == MyType
+    assert 'input' in field.args
+    assert isinstance(field.args['input'], Argument)
+    assert field.args['input'].type == MyInputObjectType
+
+
 def test_generate_inputobjecttype_inherit_abstracttype():
     class MyAbstractType(AbstractType):
         field1 = MyScalar(MyType)

graphene/types/tests/test_mountedtype.py

@@ -0,0 +1,26 @@
+import pytest
+
+from ..mountedtype import MountedType
+from ..field import Field
+from ..scalars import String
+
+
+class CustomField(Field):
+    def __init__(self, *args, **kwargs):
+        self.metadata = kwargs.pop('metadata', None)
+        super(CustomField, self).__init__(*args, **kwargs)
+
+
+def test_mounted_type():
+    unmounted = String()
+    mounted = Field.mount(unmounted)
+    assert isinstance(mounted, Field)
+    assert mounted.type == String
+
+
+def test_mounted_type_custom():
+    unmounted = String(metadata={'hey': 'yo!'})
+    mounted = CustomField.mount(unmounted)
+    assert isinstance(mounted, CustomField)
+    assert mounted.type == String
+    assert mounted.metadata == {'hey': 'yo!'}

graphene/types/tests/test_mutation.py

@@ -4,6 +4,7 @@ from ..mutation import Mutation
 from ..objecttype import ObjectType
 from ..schema import Schema
 from ..scalars import String
+from ..dynamic import Dynamic
 
 
 def test_generate_mutation_no_args():
@@ -47,12 +48,16 @@ def test_mutation_execution():
     class CreateUser(Mutation):
         class Input:
             name = String()
+            dynamic = Dynamic(lambda: String())
+            dynamic_none = Dynamic(lambda: None)
 
         name = String()
+        dynamic = Dynamic(lambda: String())
 
         def mutate(self, args, context, info):
             name = args.get('name')
-            return CreateUser(name=name)
+            dynamic = args.get('dynamic')
+            return CreateUser(name=name, dynamic=dynamic)
 
     class Query(ObjectType):
         a = String()
@@ -62,14 +67,16 @@ def test_mutation_execution():
 
     schema = Schema(query=Query, mutation=MyMutation)
     result = schema.execute(''' mutation mymutation {
-        createUser(name:"Peter") {
+        createUser(name:"Peter", dynamic: "dynamic") {
             name
+            dynamic
         }
     }
     ''')
     assert not result.errors
     assert result.data == {
         'createUser': {
-            'name': "Peter"
+            'name': 'Peter',
+            'dynamic': 'dynamic',
         }
     }

graphene/types/tests/test_options.py

@@ -0,0 +1,30 @@
+import pytest
+
+from ..options import Options
+
+
+def test_options():
+    class BaseOptions:
+        option_1 = False
+        name = True
+    meta = Options(BaseOptions, name=False, option_1=False)
+    assert meta.name == True
+    assert meta.option_1 == False
+
+
+def test_options_extra_attrs():
+    class BaseOptions:
+        name = True
+        type = True
+    
+    with pytest.raises(Exception) as exc_info:
+        meta = Options(BaseOptions)
+
+    assert str(exc_info.value) == 'Invalid attributes: name, type'
+
+
+def test_options_repr():
+    class BaseOptions:
+        name = True
+    meta = Options(BaseOptions, name=False)
+    assert repr(meta) == '<Options name=True>'

graphene/types/tests/test_query.py

@@ -4,12 +4,15 @@ from functools import partial
 from graphql import Source, execute, parse, GraphQLError
 
 from ..field import Field
+from ..interface import Interface
 from ..inputfield import InputField
 from ..inputobjecttype import InputObjectType
 from ..objecttype import ObjectType
 from ..scalars import Int, String
 from ..schema import Schema
 from ..structures import List
+from ..union import Union
+from ..dynamic import Dynamic
 
 
 def test_query():
@@ -23,6 +26,112 @@ def test_query():
     assert executed.data == {'hello': 'World'}
 
 
+def test_query_union():
+    class one_object(object):
+        pass
+
+    class two_object(object):
+        pass
+
+    class One(ObjectType):
+        one = String()
+
+        @classmethod
+        def is_type_of(cls, root, context, info):
+            return isinstance(root, one_object)
+
+    class Two(ObjectType):
+        two = String()
+
+        @classmethod
+        def is_type_of(cls, root, context, info):
+            return isinstance(root, two_object)
+
+    class MyUnion(Union):
+        class Meta:
+            types = (One, Two)
+
+    class Query(ObjectType):
+        unions = List(MyUnion)
+
+        def resolve_unions(self, args, context, info):
+            return [one_object(), two_object()]
+
+    hello_schema = Schema(Query)
+
+    executed = hello_schema.execute('{ unions { __typename } }')
+    assert not executed.errors
+    assert executed.data == {
+        'unions': [{
+            '__typename': 'One'
+        }, {
+            '__typename': 'Two'
+        }]
+    }
+
+
+def test_query_interface():
+    class one_object(object):
+        pass
+
+    class two_object(object):
+        pass
+
+    class MyInterface(Interface):
+        base = String()
+
+    class One(ObjectType):
+        class Meta:
+            interfaces = (MyInterface, )
+
+        one = String()
+
+        @classmethod
+        def is_type_of(cls, root, context, info):
+            return isinstance(root, one_object)
+
+    class Two(ObjectType):
+        class Meta:
+            interfaces = (MyInterface, )
+
+        two = String()
+
+        @classmethod
+        def is_type_of(cls, root, context, info):
+            return isinstance(root, two_object)
+
+    class Query(ObjectType):
+        interfaces = List(MyInterface)
+
+        def resolve_interfaces(self, args, context, info):
+            return [one_object(), two_object()]
+
+    hello_schema = Schema(Query, types=[One, Two])
+
+    executed = hello_schema.execute('{ interfaces { __typename } }')
+    assert not executed.errors
+    assert executed.data == {
+        'interfaces': [{
+            '__typename': 'One'
+        }, {
+            '__typename': 'Two'
+        }]
+    }
+
+
+def test_query_dynamic():
+    class Query(ObjectType):
+        hello = Dynamic(lambda: String(resolver=lambda *_: 'World'))
+        hellos = Dynamic(lambda: List(String, resolver=lambda *_: ['Worlds']))
+        hello_field = Dynamic(lambda: Field(String, resolver=lambda *_: 'Field World'))
+
+    hello_schema = Schema(Query)
+
+    executed = hello_schema.execute('{ hello hellos helloField }')
+    assert not executed.errors
+    assert executed.data == {'hello': 'World', 'hellos': ['Worlds'], 'helloField': 'Field World'}
+
+
 def test_query_default_value():
     class MyType(ObjectType):
         field = String()

graphene/types/tests/test_schema.py

@@ -0,0 +1,54 @@
+import pytest
+
+from ..schema import Schema
+from ..objecttype import ObjectType
+from ..scalars import String
+from ..field import Field
+
+
+class MyOtherType(ObjectType):
+    field = String()
+
+
+class Query(ObjectType):
+    inner = Field(MyOtherType)
+
+
+def test_schema():
+    schema = Schema(Query)
+    assert schema.get_query_type() == schema.get_graphql_type(Query)
+
+
+def test_schema_get_type():
+    schema = Schema(Query)
+    assert schema.Query == Query
+    assert schema.MyOtherType == MyOtherType
+
+
+def test_schema_get_type_error():
+    schema = Schema(Query)
+    with pytest.raises(AttributeError) as exc_info:
+        schema.X
+
+    assert str(exc_info.value) == 'Type "X" not found in the Schema'
+
+
+def test_schema_str():
+    schema = Schema(Query)
+    assert str(schema) == """schema {
+  query: Query
+}
+
+type MyOtherType {
+  field: String
+}
+
+type Query {
+  inner: MyOtherType
+}
+"""
+
+
+def test_schema_introspect():
+    schema = Schema(Query)
+    assert '__schema' in schema.introspect()

graphene/types/tests/test_structures.py

@@ -10,12 +10,51 @@ def test_list():
     assert str(_list) == '[String]'
 
 
+def test_list_with_unmounted_type():
+    with pytest.raises(Exception) as exc_info:
+        List(String())
+    
+    assert str(exc_info.value) == 'List could not have a mounted String() as inner type. Try with List(String).'
+
+
+def test_list_inherited_works_list():
+    _list = List(List(String))
+    assert isinstance(_list.of_type, List)
+    assert _list.of_type.of_type == String
+
+
+def test_list_inherited_works_nonnull():
+    _list = List(NonNull(String))
+    assert isinstance(_list.of_type, NonNull)
+    assert _list.of_type.of_type == String
+
+
 def test_nonnull():
     nonnull = NonNull(String)
     assert nonnull.of_type == String
     assert str(nonnull) == 'String!'
 
 
+def test_nonnull_inherited_works_list():
+    _list = NonNull(List(String))
+    assert isinstance(_list.of_type, List)
+    assert _list.of_type.of_type == String
+
+
+def test_nonnull_inherited_dont_work_nonnull():
+    with pytest.raises(Exception) as exc_info:
+        NonNull(NonNull(String))
+    
+    assert str(exc_info.value) == 'Can only create NonNull of a Nullable GraphQLType but got: String!.'
+
+
+def test_nonnull_with_unmounted_type():
+    with pytest.raises(Exception) as exc_info:
+        NonNull(String())
+    
+    assert str(exc_info.value) == 'NonNull could not have a mounted String() as inner type. Try with NonNull(String).'
+
+
 def test_list_comparasion():
     list1 = List(String)
     list2 = List(String)

graphene/types/typemap.py

@@ -5,20 +5,26 @@ from functools import partial
 from graphql import (GraphQLArgument, GraphQLBoolean, GraphQLField,
                      GraphQLFloat, GraphQLID, GraphQLInputObjectField,
                      GraphQLInt, GraphQLList, GraphQLNonNull, GraphQLString)
-from graphql.type import GraphQLEnumValue
 from graphql.execution.executor import get_default_resolve_type_fn
+from graphql.type import GraphQLEnumValue
 from graphql.type.typemap import GraphQLTypeMap
 
-from ..utils.str_converters import to_camel_case
 from ..utils.get_unbound_function import get_unbound_function
+from ..utils.str_converters import to_camel_case
+from .definitions import (GrapheneEnumType, GrapheneInputObjectType,
+                          GrapheneInterfaceType, GrapheneObjectType,
+                          GrapheneScalarType, GrapheneUnionType,
+                          GrapheneGraphQLType)
 from .dynamic import Dynamic
 from .enum import Enum
+from .field import Field
 from .inputobjecttype import InputObjectType
 from .interface import Interface
 from .objecttype import ObjectType
 from .scalars import ID, Boolean, Float, Int, Scalar, String
 from .structures import List, NonNull
 from .union import Union
+from .utils import get_field_as
 
 
 def is_graphene_type(_type):
@@ -28,18 +34,18 @@ def is_graphene_type(_type):
         return True
 
 
-def resolve_type(resolve_type_func, map, root, context, info):
+def resolve_type(resolve_type_func, map, type_name, root, context, info):
     _type = resolve_type_func(root, context, info)
-    # assert inspect.isclass(_type) and issubclass(_type, ObjectType), (
-    #     'Received incompatible type "{}".'.format(_type)
-    # )
+
     if not _type:
-        return get_default_resolve_type_fn(root, context, info, info.return_type)
+        return_type = map[type_name]
+        return get_default_resolve_type_fn(root, context, info, return_type)
 
     if inspect.isclass(_type) and issubclass(_type, ObjectType):
         graphql_type = map.get(_type._meta.name)
         assert graphql_type and graphql_type.graphene_type == _type
         return graphql_type
+
     return _type
 
 
@@ -63,7 +69,7 @@ class TypeMap(GraphQLTypeMap):
             return self.reducer(map, type.of_type)
         if type._meta.name in map:
             _type = map[type._meta.name]
-            if is_graphene_type(_type):
+            if isinstance(_type, GrapheneGraphQLType):
                 assert _type.graphene_type == type
             return map
         if issubclass(type, ObjectType):
@@ -81,7 +87,6 @@ class TypeMap(GraphQLTypeMap):
         return map
 
     def construct_scalar(self, map, type):
-        from .definitions import GrapheneScalarType
         _scalars = {
             String: GraphQLString,
             Int: GraphQLInt,
@@ -104,7 +109,6 @@ class TypeMap(GraphQLTypeMap):
         return map
 
     def construct_enum(self, map, type):
-        from .definitions import GrapheneEnumType
         values = OrderedDict()
         for name, value in type._meta.enum.__members__.items():
             values[name] = GraphQLEnumValue(
@@ -122,10 +126,9 @@ class TypeMap(GraphQLTypeMap):
         return map
 
     def construct_objecttype(self, map, type):
-        from .definitions import GrapheneObjectType
         if type._meta.name in map:
             _type = map[type._meta.name]
-            if is_graphene_type(_type):
+            if isinstance(_type, GrapheneGraphQLType):
                 assert _type.graphene_type == type
             return map
         map[type._meta.name] = GrapheneObjectType(
@@ -146,10 +149,9 @@ class TypeMap(GraphQLTypeMap):
         return map
 
     def construct_interface(self, map, type):
-        from .definitions import GrapheneInterfaceType
         _resolve_type = None
         if type.resolve_type:
-            _resolve_type = partial(resolve_type, type.resolve_type, map)
+            _resolve_type = partial(resolve_type, type.resolve_type, map, type._meta.name)
         map[type._meta.name] = GrapheneInterfaceType(
             graphene_type=type,
             name=type._meta.name,
@@ -162,7 +164,6 @@ class TypeMap(GraphQLTypeMap):
         return map
 
     def construct_inputobjecttype(self, map, type):
-        from .definitions import GrapheneInputObjectType
         map[type._meta.name] = GrapheneInputObjectType(
             graphene_type=type,
             name=type._meta.name,
@@ -173,10 +174,9 @@ class TypeMap(GraphQLTypeMap):
         return map
 
     def construct_union(self, map, type):
-        from .definitions import GrapheneUnionType
         _resolve_type = None
         if type.resolve_type:
-            _resolve_type = partial(resolve_type, type.resolve_type, map)
+            _resolve_type = partial(resolve_type, type.resolve_type, map, type._meta.name)
         types = []
         for i in type._meta.types:
             map = self.construct_objecttype(map, i)
@@ -202,7 +202,7 @@ class TypeMap(GraphQLTypeMap):
         fields = OrderedDict()
         for name, field in type._meta.fields.items():
             if isinstance(field, Dynamic):
-                field = field.get_type()
+                field = get_field_as(field.get_type(), _as=Field)
                 if not field:
                     continue
             map = self.reducer(map, field.type)

graphene/types/union.py

@@ -39,7 +39,11 @@ class Union(six.with_metaclass(UnionMeta)):
     to determine which type is actually used when the field is resolved.
     '''
 
-    resolve_type = None
+    @classmethod
+    def resolve_type(cls, instance, context, info):
+        from .objecttype import ObjectType
+        if isinstance(instance, ObjectType):
+            return type(instance)
 
     def __init__(self, *args, **kwargs):
-        raise Exception("An Union cannot be intitialized")
+        raise Exception("A Union cannot be intitialized")

graphene/types/unmountedtype.py

@@ -8,7 +8,7 @@ class UnmountedType(OrderedType):
 
     Instead of writing
     >>> class MyObjectType(ObjectType):
-    >>>     my_field = Field(String(), description='Description here')
+    >>>     my_field = Field(String, description='Description here')
 
     It let you write
     >>> class MyObjectType(ObjectType):
@@ -21,43 +21,35 @@ class UnmountedType(OrderedType):
         self.kwargs = kwargs
 
     def get_type(self):
+        '''
+        This function is called when the UnmountedType instance
+        is mounted (as a Field, InputField or Argument)
+        '''
         raise NotImplementedError("get_type not implemented in {}".format(self))
 
+    def mount_as(self, _as):
+        return _as.mount(self)
+
     def Field(self):  # noqa: N802
         '''
         Mount the UnmountedType as Field
         '''
         from .field import Field
-        return Field(
-            self.get_type(),
-            *self.args,
-            _creation_counter=self.creation_counter,
-            **self.kwargs
-        )
+        return self.mount_as(Field)
 
     def InputField(self):  # noqa: N802
         '''
         Mount the UnmountedType as InputField
         '''
         from .inputfield import InputField
-        return InputField(
-            self.get_type(),
-            *self.args,
-            _creation_counter=self.creation_counter,
-            **self.kwargs
-        )
+        return self.mount_as(InputField)
 
     def Argument(self):  # noqa: N802
         '''
         Mount the UnmountedType as Argument
         '''
         from .argument import Argument
-        return Argument(
-            self.get_type(),
-            *self.args,
-            _creation_counter=self.creation_counter,
-            **self.kwargs
-        )
+        return self.mount_as(Argument)
 
     def __eq__(self, other):
         return (

graphene/types/utils.py

@@ -1,8 +1,6 @@
 from collections import OrderedDict
 
-from .dynamic import Dynamic
-from .field import Field
-from .inputfield import InputField
+from .mountedtype import MountedType
 from .unmountedtype import UnmountedType
 
 
@@ -35,34 +33,16 @@ def get_base_fields(bases, _as=None):
     return fields
 
 
-def mount_as(unmounted_field, _as):
-    '''
-    Mount the UnmountedType dinamically as Field or InputField
-    '''
-    if _as is None:
-        return unmounted_field
-
-    elif _as is Field:
-        return unmounted_field.Field()
-
-    elif _as is InputField:
-        return unmounted_field.InputField()
-
-    raise Exception(
-        'Unmounted field "{}" cannot be mounted in {}.'.format(
-            unmounted_field, _as
-        )
-    )
-
-
 def get_field_as(value, _as=None):
     '''
     Get type mounted
     '''
-    if isinstance(value, (Field, InputField, Dynamic)):
+    if isinstance(value, MountedType):
         return value
     elif isinstance(value, UnmountedType):
-        return mount_as(value, _as)
+        if _as is None:
+            return value
+        return _as.mount(value)
 
 
 def yank_fields_from_attrs(attrs, _as=None, delete=True, sort=True):

graphene/utils/tests/test_orderedtype.py

@@ -23,3 +23,19 @@ def test_orderedtype_hash():
 
     assert hash(one) == hash(one)
     assert hash(one) != hash(two)
+
+
+def test_orderedtype_resetcounter():
+    one = OrderedType()
+    two = OrderedType()
+    one.reset_counter()
+
+    assert one > two
+
+
+def test_orderedtype_non_orderabletypes():
+    one = OrderedType()
+
+    assert one.__lt__(1) == NotImplemented
+    assert one.__gt__(1) == NotImplemented
+    assert not one == 1

setup.py

@@ -70,9 +70,9 @@ setup(
 
     install_requires=[
         'six>=1.10.0',
-        'graphql-core>=1.0',
-        'graphql-relay>=0.4.4',
-        'promise',
+        'graphql-core>=1.0.1',
+        'graphql-relay>=0.4.5',
+        'promise>=1.0.1',
     ],
     tests_require=[
         'pytest>=2.7.2',

tox.ini

@@ -5,12 +5,15 @@ skipsdist = true
 [testenv]
 deps=
     pytest>=2.7.2
-    graphql-core>=0.5.1
-    graphql-relay>=0.4.3
+    graphql-core>=1.0.1
+    graphql-relay>=0.4.5
     six
     blinker
     singledispatch
     mock
+    pytz
+    iso8601
+    pytest-benchmark
 setenv =
      PYTHONPATH = .:{envdir}
 commands=