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ORMField batching results in null result #401
Description
I'm trying to get batching set up on a 1:N relationship. Suppose a Foo has many Bars
class FooObject(SQLAlchemyObjectType):
class Meta:
model = Foo
interfaces = (graphene.relay.Node,)
bars = ORMField(batching=True)(I've also tried doing batching=True in the Meta)
class Query(graphene.ObjectType):
test_query_batching = graphene.Field(
lambda: graphene.List(FooObject),
)
def resolve_test_foo_query_batching(self, info):
return Foo.query.limit(5).all()Querying this resolver as such
query TestQueryBatching {
testQueryBatching {
id
bars {
edges {
node {
id
}
}
}
}
}results in Cannot return null for non-nullable field BarObjectConnection.edges. This query succeeds if batching is disabled. I'm unsure as to why we'd be getting null for BarObjectConnection.edges, though. Any ideas as to what might be leading to this?
Versions:
- SQLAlchemy==1.4.51
- Flask-SQLAlchemy==2.5.1
- graphene-sqlalchemy==3.0.0rc1
Activity
[-]Enabling field batching results in [/-][+]SQAOT ORMField batching results in null result[/+][-]SQAOT ORMField batching results in null result[/-][+]ORMField batching results in null result[/+]davidmcnamee commentedon Mar 2, 2024
Not sure what the bug is here, but this temporary workaround seemed to do the trick for me:
based on this code