diff --git a/nomad/datamodel/data.py b/nomad/datamodel/data.py index 6fcfd9080d6d3e8a3110a70a450358dc5ff6fc95..f5aa652d28a6078ce830b89358cd6dcbe51054dd 100644 --- a/nomad/datamodel/data.py +++ b/nomad/datamodel/data.py @@ -208,7 +208,7 @@ class UserReference(Reference): return value.user_id -user_reference = UserReference() +user_reference = UserReference class AuthorReference(Reference): @@ -233,7 +233,7 @@ class AuthorReference(Reference): raise ValueError(f'Cannot serialize {value}.') -author_reference = AuthorReference() +author_reference = AuthorReference class Query(JSON): diff --git a/nomad/metainfo/metainfo.py b/nomad/metainfo/metainfo.py index 2cf68748a7077447ecd92e2d7be5101e697a5c31..83a20b3094eb49c78e119ab6c9342e7d7c8dd349 100644 --- a/nomad/metainfo/metainfo.py +++ b/nomad/metainfo/metainfo.py @@ -479,8 +479,10 @@ class Reference: def _check_shape(self, value): dimension: int = 0 target = value - while isinstance(target, list) and len(target) > 0: + while isinstance(target, list): dimension += 1 + if len(target) == 0: + break # assuming consistent data target = target[0]