Make SearchContext._to_sumo return something useful even for object t…

…ype that do not have their own class. Implement new property template_path as a prototype for something that might end up being part of the schema.

src/fmu/sumo/explorer/objects/__init__.py

@@ -1,6 +1,7 @@
 """Sumo cases and child objects"""
 
 from fmu.sumo.explorer.objects._search_context import SearchContext
+from fmu.sumo.explorer.objects._child import Child
 from fmu.sumo.explorer.objects._metrics import Metrics
 from fmu.sumo.explorer.objects.case import Case
 from fmu.sumo.explorer.objects.cases import Cases

src/fmu/sumo/explorer/objects/_child.py

@@ -85,5 +85,10 @@ def interval(self) -> str:
 
         return None
 
+    @property
+    def template_path(self):
+        return "/".join(["{realization}", "{iteration}"] +
+                        self.relative_path.split("/")[2:])
+
 
 Child.map_properties(Child, _prop_desc)

src/fmu/sumo/explorer/objects/_search_context.py

@@ -1,6 +1,7 @@
 import uuid
 import httpx
 import deprecation
+import warnings
 from typing import List, Dict, Tuple
 from datetime import datetime
 from io import BytesIO
@@ -324,7 +325,9 @@ def _to_sumo(self, obj, blob=None):
             "surface": objects.Surface,
             "table": objects.Table,
         }.get(cls)
-        assert constructor is not None
+        if constructor is None:
+           warnings.warn(f"No constructor for class {cls}")
+           constructor = objects.Child
         return constructor(self._sumo, obj, blob)
 
     def __len__(self):
@@ -818,6 +821,10 @@ def realizations(self):
         """Realizations from current selection."""
         return objects.Realizations(self)
 
+    @property
+    def template_paths(sc):
+        return set([obj.template_path for obj in sc])
+
     @property
     def metrics(self):
         """Metrics for current search context."""