graphene/examples/starwars_relay/schema.py
2015-10-30 00:44:21 -07:00

77 lines
1.9 KiB
Python

import graphene
from graphene import resolve_only_args, relay
from .data import (
get_faction,
get_ship,
get_rebels,
get_empire,
create_ship,
)
schema = graphene.Schema(name='Starwars Relay Schema')
class Ship(relay.Node):
'''A ship in the Star Wars saga'''
name = graphene.StringField(description='The name of the ship.')
@classmethod
def get_node(cls, id):
return get_ship(id)
class Faction(relay.Node):
'''A faction in the Star Wars saga'''
name = graphene.StringField(description='The name of the faction.')
ships = relay.ConnectionField(
Ship, description='The ships used by the faction.')
@resolve_only_args
def resolve_ships(self, **args):
# Transform the instance ship_ids into real instances
return [get_ship(ship_id) for ship_id in self.ships]
@classmethod
def get_node(cls, id):
return get_faction(id)
class IntroduceShip(relay.ClientIDMutation):
class Input:
ship_name = graphene.StringField(required=True)
faction_id = graphene.StringField(required=True)
ship = graphene.Field(Ship)
faction = graphene.Field(Faction)
@classmethod
def mutate_and_get_payload(cls, input, info):
ship_name = input.get('ship_name')
faction_id = input.get('faction_id')
ship = create_ship(ship_name, faction_id)
faction = get_faction(faction_id)
return IntroduceShip(ship=ship, faction=faction)
class Query(graphene.ObjectType):
rebels = graphene.Field(Faction)
empire = graphene.Field(Faction)
node = relay.NodeField()
@resolve_only_args
def resolve_rebels(self):
return get_rebels()
@resolve_only_args
def resolve_empire(self):
return get_empire()
class Mutation(graphene.ObjectType):
introduce_ship = graphene.Field(IntroduceShip)
schema.query = Query
schema.mutation = Mutation