Fix state check for empty collections

2026-10-29 17:42:12 +08:00 · 2020-11-14 17:54:22 +01:00
parent 39c7c3dfd4
commit a2c83ee722
1 changed files with 4 additions and 2 deletions
@@ -4008,8 +4008,10 @@ class DatasetCollection(Dictifiable, UsesAnnotations, RepresentById):
            extensions = set()
            states = set()
            for extension, state in db_session.execute(select_stmt).fetchall():
-                states.add(state)
-                extensions.add(extension)
+                if state is not None:
+                    # query may return (None, None) if not collection elements present
+                    states.add(state)
+                    extensions.add(extension)

            self._dataset_states_and_extensions_summary = (states, extensions)