def test_is_type_of_used_to_resolve_runtime_type_for_interface():
PetType = GraphQLInterfaceType(
name='Pet', fields={'name': GraphQLField(GraphQLString)})
DogType = GraphQLObjectType(name='Dog',
interfaces=[PetType],
is_type_of=is_type_of(Dog),
fields={
'name': GraphQLField(GraphQLString),
'woofs': GraphQLField(GraphQLBoolean)
})
CatType = GraphQLObjectType(name='Cat',
interfaces=[PetType],
is_type_of=is_type_of(Cat),
fields={
'name': GraphQLField(GraphQLString),
'meows': GraphQLField(GraphQLBoolean)
})
schema = GraphQLSchema(query=GraphQLObjectType(
name='Query',
fields={
'pets':
GraphQLField(
GraphQLList(PetType),
resolver=lambda *_:
[Dog('Odie', True), Cat('Garfield', False)])
}))
query = '''
{
pets {
name
... on Dog {
woofs
}
... on Cat {
meows
}
}
}
'''
result = graphql(schema, query)
assert not result.errors
assert result.data == {
'pets': [{
'woofs': True,
'name': 'Odie'
}, {
'name': 'Garfield',
'meows': False
}]
}
def generate_schema(db):
_types = {}
fields = {}
mutations = {}
for name, entity in db.entities.items():
typ = EntityConnectionType(entity, _types)
fields[typ.name] = typ.make_field()
for name, entity in db.entities.items():
typ = EntityType(entity, _types)
mutations.update(typ.make_mutations())
if getattr(db, 'mutations', None):
mutations.update(db.mutations)
query = GraphQLObjectType(name='Query', fields=fields)
mutation = GraphQLObjectType('Mutation', fields=mutations)
return GraphQLSchema(query=query, mutation=mutation)
def get_edge_type(self):
entity_name = super(EntitySetType, self).name
name = "%sEdge" % entity_name
if name in self.types_dict:
return self.types_dict[name]
edge_type = GraphQLObjectType(name, {
'node': GraphQLField(self.node_type),
'cursor': GraphQLField(GraphQLNonNull(GraphQLString))
})
self.types_dict[name] = edge_type
return edge_type
def as_graphql(self):
if self.name in self.types_dict:
return self.types_dict[self.name]
typ = GraphQLObjectType(self.name, {
'hasNextPage': GraphQLField(
GraphQLNonNull(GraphQLBoolean),
),
'hasPreviousPage': GraphQLField(
GraphQLNonNull(GraphQLBoolean),
),
})
self.types_dict[self.name] = typ
return typ
def as_graphql(self):
if self.name in self.types_dict:
return self.types_dict[self.name]
def get_fields():
return {
name: typ.make_field()
for name, typ in self.get_field_types()
}
object_type = GraphQLObjectType(
name=self.name,
fields=get_fields,
)
self.types_dict[self.name] = object_type
return object_type
def as_graphql(self):
entity_name = super(EntityConnectionType, self).name
name = "%sConnection" % entity_name
if name in self.types_dict:
return self.types_dict[name]
connection_type = GraphQLObjectType(name, {
'pageInfo': GraphQLField(self.get_page_info_type()),
'edges': GraphQLField(
GraphQLList(self.get_edge_type()),
),
'items': GraphQLField(
GraphQLList(self.node_type),
)
})
self.types_dict[name] = connection_type
return connection_type
def build(cls):
self = cls()
output_fields = self.get_output_fields()
output_fields.update(
{'clientMutationId': GraphQLField(GraphQLNonNull(GraphQLString))})
output_type = GraphQLObjectType(self.name + 'Payload',
fields=output_fields)
input_fields = self.get_input_fields()
input_fields.update({
'clientMutationId':
GraphQLInputObjectField(GraphQLNonNull(GraphQLString))
})
input_arg = GraphQLArgument(
GraphQLNonNull(
GraphQLInputObjectType(name=self.name + 'Input',
fields=input_fields)))
return GraphQLField(output_type,
args={
'input': input_arg,
},
resolver=self._resolver)
},
field {
deepField {
y
}
}
}
''', [
fields_conflict('deepField', [
('x', 'a and b are different fields')
], L(4, 13), L(7, 13), L(5, 17), L(8, 17))
],
sort_list=False)
StringBox = GraphQLObjectType('StringBox',
{'scalar': GraphQLField(GraphQLString)})
IntBox = GraphQLObjectType('IntBox', {'scalar': GraphQLField(GraphQLInt)})
NonNullStringBox1 = GraphQLObjectType(
'NonNullStringBox1',
{'scalar': GraphQLField(GraphQLNonNull(GraphQLString))})
NonNullStringBox2 = GraphQLObjectType(
'NonNullStringBox2',
{'scalar': GraphQLField(GraphQLNonNull(GraphQLString))})
BoxUnion = GraphQLUnionType(
'BoxUnion', [StringBox, IntBox, NonNullStringBox1, NonNullStringBox2],
resolve_type=lambda *_: StringBox)
def test_resolve_type_on_union_yields_useful_error():
DogType = GraphQLObjectType(name='Dog',
fields={
'name': GraphQLField(GraphQLString),
'woofs': GraphQLField(GraphQLBoolean)
})
HumanType = GraphQLObjectType(name='Human',
fields={
'name': GraphQLField(GraphQLString),
})
CatType = GraphQLObjectType(name='Cat',
fields={
'name': GraphQLField(GraphQLString),
'meows': GraphQLField(GraphQLBoolean)
})
PetType = GraphQLUnionType(
name='Pet',
types=[DogType, CatType],
resolve_type=make_type_resolver(
lambda: [(Dog, DogType), (Cat, CatType), (Human, HumanType)]))
schema = GraphQLSchema(
query=GraphQLObjectType(name='Query',
fields={
'pets':
GraphQLField(GraphQLList(PetType),
resolver=lambda *_: [
Dog('Odie', True),
Cat('Garfield', False),
Human('Jon')
])
}))
query = '''
{
pets {
... on Dog {
name
woofs
}
... on Cat {
name
meows
}
}
}
'''
result = graphql(schema, query)
assert result.errors[
0].message == 'Runtime Object type "Human" is not a possible type for "Pet".'
assert result.data == {
'pets': [{
'woofs': True,
'name': 'Odie'
}, {
'name': 'Garfield',
'meows': False
}, None]
}
}
''', [
fields_conflict('deepField', [
('x', 'a and b are different fields')
], L(4, 13), L(5, 17), L(7, 13), L(8, 17))
],
sort_list=False)
SomeBox = GraphQLInterfaceType('SomeBox',
{'unrelatedField': GraphQLField(GraphQLString)},
resolve_type=lambda *_: StringBox)
StringBox = GraphQLObjectType('StringBox', {
'scalar': GraphQLField(GraphQLString),
'unrelatedField': GraphQLField(GraphQLString)
},
interfaces=[SomeBox])
IntBox = GraphQLObjectType('IntBox', {
'scalar': GraphQLField(GraphQLInt),
'unrelatedField': GraphQLField(GraphQLString)
},
interfaces=[SomeBox])
NonNullStringBox1 = GraphQLInterfaceType(
'NonNullStringBox1',
{'scalar': GraphQLField(GraphQLNonNull(GraphQLString))},
resolve_type=lambda *_: StringBox)
NonNullStringBox1Impl = GraphQLObjectType(
def node_field(id, info):
assert info.schema == schema
return Node.instances[id]
def global_id_field():
return GraphQLField(
GraphQLNonNull(GraphQLID),
description='The ID of an object',
resolver=lambda obj, *_: id(obj),
)
UserType = GraphQLObjectType('User', {
'id': global_id_field(),
'email': GraphQLField(GraphQLString),
'name': GraphQLField(GraphQLString),
},
interfaces=[node_interface])
PostType = GraphQLObjectType(
'Post',
lambda: {
'id':
global_id_field(),
'post_id':
GraphQLField(GraphQLInt, resolver=lambda obj, *_: obj.id),
'parent':
GraphQLField(GraphQLInt),
'title':
GraphQLField(GraphQLString),
'text':