Making node argument optional for GlobalID.

graphene-django/graphene_django/fields.py

@@ -46,7 +46,7 @@ class DjangoConnectionField(ConnectionField):
         connection.length = _len
         return connection
 
-    def get_resolver(self, parent_resolver):
+    def get_resolver(self, parent_resolver, _):
         return partial(self.connection_resolver, parent_resolver, self.type, self.get_manager())
 
 

graphene-django/graphene_django/filter/fields.py

@@ -34,6 +34,6 @@ class DjangoFilterConnectionField(DjangoConnectionField):
 
         return DjangoConnectionField.connection_resolver(resolver, connection, qs, root, args, context, info)
 
-    def get_resolver(self, parent_resolver):
+    def get_resolver(self, parent_resolver, _):
         return partial(self.connection_resolver, parent_resolver, self.type, self.get_manager(),
                        self.filterset_class, self.filtering_args)

graphene-sqlalchemy/graphene_sqlalchemy/fields.py

@@ -33,5 +33,5 @@ class SQLAlchemyConnectionField(ConnectionField):
             edge_type=connection.Edge,
         )
 
-    def get_resolver(self, parent_resolver):
+    def get_resolver(self, parent_resolver, _):
         return partial(self.connection_resolver, parent_resolver, self.type, self.model)

graphene/relay/connection.py

@@ -133,8 +133,8 @@ class IterableConnectionField(Field):
         connection.iterable = iterable
         return connection
 
-    def get_resolver(self, parent_resolver):
-        resolver = super(IterableConnectionField, self).get_resolver(parent_resolver)
+    def get_resolver(self, parent_resolver, _):
+        resolver = super(IterableConnectionField, self).get_resolver(parent_resolver, None)
         return partial(self.connection_resolver, resolver, self.type)
 
 ConnectionField = IterableConnectionField

graphene/relay/node.py

@@ -35,8 +35,8 @@ def get_default_connection(cls):
 
 class GlobalID(Field):
 
-    def __init__(self, node, *args, **kwargs):
-        super(GlobalID, self).__init__(ID, *args, **kwargs)
+    def __init__(self, node=None, required=True, *args, **kwargs):
+        super(GlobalID, self).__init__(ID, required=required, *args, **kwargs)
         self.node = node
 
     @staticmethod
@@ -44,15 +44,15 @@ class GlobalID(Field):
         id = parent_resolver(root, args, context, info)
         return node.to_global_id(info.parent_type.name, id)  # root._meta.name
 
-    def get_resolver(self, parent_resolver):
-        return partial(self.id_resolver, parent_resolver, self.node)
+    def get_resolver(self, parent_resolver, parent_type):
+        return partial(self.id_resolver, parent_resolver, self.node or parent_type)
 
 
 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_node.py

@@ -5,7 +5,7 @@ from graphql_relay import to_global_id
 
 from ...types import ObjectType, Schema, String, AbstractType
 from ..connection import Connection
-from ..node import Node
+from ..node import Node, GlobalID
 
 
 class SharedNodeFields(AbstractType):
@@ -28,6 +28,18 @@ class MyNode(ObjectType):
         return MyNode(name=str(id))
 
 
+class MyNodeImplementedId(ObjectType):
+
+    class Meta:
+        interfaces = (Node, )
+    id = GlobalID()
+    name = String()
+
+    @staticmethod
+    def get_node(id, *_):
+        return MyNodeImplementedId(name=str(id) + '!')
+
+
 class MyOtherNode(SharedNodeFields, ObjectType):
     extra_field = String()
 
@@ -46,7 +58,7 @@ class RootQuery(ObjectType):
     first = String()
     node = Node.Field()
 
-schema = Schema(query=RootQuery, types=[MyNode, MyOtherNode])
+schema = Schema(query=RootQuery, types=[MyNode, MyOtherNode, MyNodeImplementedId])
 
 
 def test_node_good():
@@ -78,6 +90,14 @@ def test_subclassed_node_query():
     assert executed.data == OrderedDict({'node': OrderedDict([('shared', '1'), ('extraField', 'extra field info.'), ('somethingElse', '----')])})
 
 
+def test_node_query_implemented_id():
+    executed = schema.execute(
+        '{ node(id:"%s") { ... on MyNodeImplementedId { name } } }' % to_global_id("MyNodeImplementedId", 1)
+    )
+    assert not executed.errors
+    assert executed.data == {'node': {'name': '1!'}}
+
+
 def test_node_query_incorrect_id():
     executed = schema.execute(
         '{ node(id:"%s") { ... on MyNode { name } } }' % "something:2"
@@ -97,6 +117,11 @@ type MyNode implements Node {
   name: String
 }
 
+type MyNodeImplementedId implements Node {
+  id: ID!
+  name: String
+}
+
 type MyOtherNode implements Node {
   id: ID!
   shared: String

graphene/types/field.py

@@ -45,5 +45,5 @@ class Field(OrderedType):
             return self._type()
         return self._type
 
-    def get_resolver(self, parent_resolver):
+    def get_resolver(self, parent_resolver, _):
         return self.resolver or parent_resolver

graphene/types/typemap.py

@@ -219,7 +219,7 @@ class TypeMap(GraphQLTypeMap):
                 _field = GraphQLField(
                     field_type,
                     args=args,
-                    resolver=field.get_resolver(self.get_resolver_for_type(type, name)),
+                    resolver=field.get_resolver(self.get_resolver_for_type(type, name), type),
                     deprecation_reason=field.deprecation_reason,
                     description=field.description
                 )