Fix database migration when database has no multidimensional entity c…

…lasses (#339)
spine-tools · Jan 24, 2024 · e4945db · e4945db
2 parents 782b041 + 74d39ad
commit e4945db
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/spinedb_api/alembic/versions/8b0eff478bcb_add_active_by_default_to_entity_class.py b/spinedb_api/alembic/versions/8b0eff478bcb_add_active_by_default_to_entity_class.py
@@ -30,6 +30,8 @@ def upgrade():
     metadata.reflect(bind=conn)
     dimension_table = metadata.tables["entity_class_dimension"]
     dimensional_class_ids = {row.entity_class_id for row in session.query(dimension_table)}
+    if not dimensional_class_ids:
+        return
     metadata.reflect(bind=conn)
     class_table = metadata.tables["entity_class"]
     update_statement = (