graphene/graphene/relay/mutation.py
2016-06-15 22:34:12 -07:00

63 lines
2.1 KiB
Python

from functools import partial
import six
from graphql_relay import mutation_with_client_mutation_id
from ..types.field import Field, InputField
from ..types.inputobjecttype import InputObjectType
from ..types.mutation import Mutation, MutationMeta
from ..types.objecttype import ObjectType
from ..types.options import Options
from ..utils.copy_fields import copy_fields
from ..utils.get_fields import get_fields
from ..utils.is_base_type import is_base_type
from ..utils.props import props
class ClientIDMutationMeta(MutationMeta):
def __new__(cls, name, bases, attrs):
super_new = type.__new__
# Also ensure initialization is only performed for subclasses of Model
# (excluding Model class itself).
if not is_base_type(bases, ClientIDMutationMeta):
return super_new(cls, name, bases, attrs)
options = Options(
attrs.pop('Meta', None),
name=None,
description=None,
)
Input = attrs.pop('Input', None)
cls = super_new(cls, name, bases, dict(attrs, _meta=options))
input_fields = props(Input) if Input else {}
input_local_fields = copy_fields(InputField, get_fields(InputObjectType, input_fields, ()))
output_fields = copy_fields(Field, get_fields(ObjectType, attrs, bases))
mutate_and_get_payload = getattr(cls, 'mutate_and_get_payload', None)
assert mutate_and_get_payload, (
"{}.mutate_and_get_payload method is required"
" in a ClientIDMutation ObjectType.".format(cls.__name__)
)
field = mutation_with_client_mutation_id(
name=options.name or cls.__name__,
input_fields=input_local_fields,
output_fields=output_fields,
mutate_and_get_payload=cls.mutate_and_get_payload,
)
options.graphql_type = field.type
cls.Field = partial(Field.copy_and_extend, field, type=field.type, _creation_counter=None)
return cls
class ClientIDMutation(six.with_metaclass(ClientIDMutationMeta, Mutation)):
class Meta:
abstract = True