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Improved is_node checks

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This commit is contained in:
Syrus Akbary 2017-09-06 17:51:09 -07:00
parent bb6dc43d4b
commit 2cc701f444
1 changed files with 9 additions and 2 deletions
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11
graphene/relay/node.py
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@ -1,5 +1,6 @@
from collections import OrderedDict
from functools import partial
from inspect import isclass
from graphql_relay import from_global_id, to_global_id
@ -12,12 +13,16 @@ def is_node(objecttype):
'''
Check if the given objecttype has Node as an interface
'''
if not isclass(objecttype):
return False
if not issubclass(objecttype, ObjectType):
return False
for i in objecttype._meta.interfaces:
if issubclass(i, Node):
return True
return False
@ -49,7 +54,8 @@ class NodeField(Field):
self.field_type = type
super(NodeField, self).__init__(
# If we don's specify a type, the field type will be the node interface
# If we don's specify a type, the field type will be the node
# interface
type or node,
description='The ID of the object',
id=ID(required=True)
@ -70,7 +76,8 @@ class AbstractNode(Interface):
_meta.fields = OrderedDict(
id=GlobalID(cls, description='The ID of the object.')
)
super(AbstractNode, cls).__init_subclass_with_meta__(_meta=_meta, **options)
super(AbstractNode, cls).__init_subclass_with_meta__(
_meta=_meta, **options)
class Node(AbstractNode):