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from enum import Enum as PyEnum
from graphql import (
GraphQLEnumType,
GraphQLInputObjectType,
GraphQLInterfaceType,
GraphQLObjectType,
GraphQLScalarType,
GraphQLUnionType,
)
class GrapheneGraphQLType:
"""
A class for extending the base GraphQLType with the related
graphene_type
"""
def __init__(self, *args, **kwargs):
self.graphene_type = kwargs.pop("graphene_type")
super(GrapheneGraphQLType, self).__init__(*args, **kwargs)
def __copy__(self):
result = GrapheneGraphQLType(graphene_type=self.graphene_type)
result.__dict__.update(self.__dict__)
return result
class GrapheneInterfaceType(GrapheneGraphQLType, GraphQLInterfaceType):
pass
class GrapheneUnionType(GrapheneGraphQLType, GraphQLUnionType):
pass
class GrapheneObjectType(GrapheneGraphQLType, GraphQLObjectType):
pass
class GrapheneScalarType(GrapheneGraphQLType, GraphQLScalarType):
pass
class GrapheneEnumType(GrapheneGraphQLType, GraphQLEnumType):
def serialize(self, value):
if not isinstance(value, PyEnum):
enum = self.graphene_type._meta.enum
try:
# Try and get enum by value
value = enum(value)
except ValueError:
# Try and get enum by name
try:
value = enum[value]
except KeyError:
pass
return super(GrapheneEnumType, self).serialize(value)
class GrapheneInputObjectType(GrapheneGraphQLType, GraphQLInputObjectType):
pass
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