order scenarios (and cycles) so that we always get the same order on …

…UI (by creation date) (#884)

resolves #165

Co-authored-by: Fred Lefévère-Laoide <[email protected]>

taipy/gui_core/_context.py

@@ -217,7 +217,9 @@ def scenario_adapter(self, scenario_or_cycle):
                     return (
                         scenario_or_cycle.id,
                         scenario_or_cycle.get_simple_label(),
-                        self.scenario_by_cycle.get(scenario_or_cycle),
+                        sorted(
+                            self.scenario_by_cycle.get(scenario_or_cycle, []), key=_GuiCoreContext.sort_by_creation_date
+                        ),
                         _EntityType.CYCLE.value,
                         False,
                     )
@@ -248,7 +250,7 @@ def get_scenarios(self):
                     cycles_scenarios.extend(scenarios)
                 else:
                     cycles_scenarios.append(cycle)
-        return cycles_scenarios
+        return sorted(cycles_scenarios, key=_GuiCoreContext.sort_by_creation_date)
 
     def select_scenario(self, state: State, id: str, payload: t.Dict[str, str]):
         args = payload.get("args")
@@ -667,6 +669,10 @@ def __edit_properties(self, entity: t.Union[Scenario, Sequence, DataNode], data:
                     if key and key not in _GuiCoreContext.__ENTITY_PROPS:
                         ent.properties.pop(key, None)
 
+    @staticmethod
+    def sort_by_creation_date(entity: t.Union[Scenario, Cycle]):
+        return entity.creation_date
+
     def get_scenarios_for_owner(self, owner_id: str):
         cycles_scenarios: t.List[t.Union[Scenario, Cycle]] = []
         with self.lock:
@@ -685,7 +691,7 @@ def get_scenarios_for_owner(self, owner_id: str):
                         cycles_scenarios.extend(scenarios_cycle)
                     elif isinstance(entity, Scenario):
                         cycles_scenarios.append(entity)
-        return cycles_scenarios
+        return sorted(cycles_scenarios, key=_GuiCoreContext.sort_by_creation_date)
 
     def get_data_node_history(self, datanode: DataNode, id: str):
         if (