Some additional work done with CRUDKit. May start this over with a better design for CRUDKit.

crudkit/service.py

@@ -56,7 +56,7 @@ def _apply_dotted_ordering(stmt, Model, sort_tokens):
             rel = current_mapper.relationships.get(rel_name)
             if rel is None:
                 # invalid sort key; skip quietly or raise
-                # raise ValueError(f"Unknown relationship {current_mapper.class_.__name__}.{rel_name}")
+                print(f"Unknown relationship {current_mapper.class_.__name__}.{rel_name}")
                 entity = None
                 break
 
@@ -78,13 +78,20 @@ def _apply_dotted_ordering(stmt, Model, sort_tokens):
             continue
 
         col_name = parts[-1]
-        # Validate final column
-        if col_name not in current_mapper.columns:
-            # raise ValueError(f"Unknown column {current_mapper.class_.__name__}.{col_name}")
-            continue
+        # # Validate final column
+        # if col_name not in current_mapper.columns:
+        #     print(f"Unknown column {current_mapper.class_.__name__}.{col_name}")
+        #     continue
 
-        col = getattr(entity, col_name) if entity is not Model else getattr(Model, col_name)
-        stmt = stmt.order_by(col.desc() if direction == "desc" else col.asc())
+        # col = getattr(entity, col_name) if entity is not Model else getattr(Model, col_name)
+
+        attr = getattr(entity, col_name, None)
+        if attr is None:
+            attr = getattr(current_mapper.class_, col_name, None)
+            if attr is None:
+                print(f"Unknown column {current_mapper.class_.__name__}.{col_name}")
+                continue
+        stmt = stmt.order_by(attr.desc() if direction == "desc" else attr.asc())
 
     return stmt