RF: no need for _DEFAULT_COLUMNS

Author: yarikoptic

datalad_registry/overview.py

@@ -49,20 +49,6 @@
     "metadata": {"label": "Metadata", "sortable": False},
 }
 
-# Default columns to display
-_DEFAULT_COLUMNS = [
-    "url",
-    "dataset",
-    "commit",
-    "head_dt",
-    "keys",
-    "annexed_files_count",
-    "annexed_files_size",
-    "update",
-    "git_objects",
-    "metadata",
-]
-
 
 # Register humanize.intcomma as a Jinja2 filter
 bp.add_app_template_filter(intcomma, "intcomma")
@@ -99,9 +85,9 @@ def overview():  # No type hints due to mypy#7187.
             col for col in requested_columns if col in _AVAILABLE_COLUMNS
         ]
         if not visible_columns:
-            visible_columns = _DEFAULT_COLUMNS
+            visible_columns = list(_AVAILABLE_COLUMNS)
     else:
-        visible_columns = _DEFAULT_COLUMNS
+        visible_columns = list(_AVAILABLE_COLUMNS)
 
     # Handle sorting using new system
     sort_by_param = request.args.get("sort_by", default_sort_column, type=str)

datalad_registry/tests/test_overview.py

@@ -348,11 +348,11 @@ def test_metadata(self, flask_client):
     @pytest.mark.parametrize(
         "columns_param, expected_header_count",
         [
-            (None, 10),  # Default columns
+            (None, 10),  # All available columns
             ("url,dataset,commit", 3),
             ("url,head_dt,update", 3),
             ("url,keys,metadata", 3),
-            ("invalid_column", 10),  # Invalid columns fall back to default
+            ("invalid_column", 10),  # Invalid columns fall back to all columns
             ("url,invalid_column,dataset", 2),  # Valid columns only
         ],
     )