[Fix] Filter Scenarios with Parent (#311) (#323)

The scenarios lists both in /scenarios and /package/<id>/scenario no longer show related scenarios (children).
All related scenarios are shown on the scenario page under Related Scenarios if there are any.
<img width="500" alt="{C2D38DED-A402-4A27-A241-BC2302C62A50}.png" src="attachments/1371c177-220c-42d5-94ff-56f9fbab761f">

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Reviewed-on: enviPath/enviPy#323
Co-authored-by: Liam Brydon <lbry121@aucklanduni.ac.nz>
Co-committed-by: Liam Brydon <lbry121@aucklanduni.ac.nz>

epdb/models.py

@@ -3962,8 +3962,12 @@ class Scenario(EnviPathModel):
                 yield inst
 
     def related_pathways(self):
+        scens = [self]
+        if self.parent is not None:
+            scens.append(self.parent)
+
         return Pathway.objects.filter(
-            scenarios__in=[self], package__reviewed=True, package=self.package
+            scenarios__in=scens, package__reviewed=True, package=self.package
         ).distinct()
 
 

epdb/views.py

@@ -2479,6 +2479,8 @@ def package_scenario(request, package_uuid, scenario_uuid):
         context["breadcrumbs"] = breadcrumbs(current_package, "scenario", current_scenario)
 
         context["scenario"] = current_scenario
+        # Get scenarios that have current_scenario as a parent
+        context["children"] = current_scenario.scenario_set.order_by("name")
 
         # Note: Modals now fetch schemas and data from API endpoints
         # Keeping these for backwards compatibility if needed elsewhere