Added cached readonly field "address" to traveler to allow search functionally and reduce database lookups

busManager/coord/admin.py

@@ -185,7 +185,7 @@ class TravellerAdmin(MyImportExportModelAdmin, admin.ModelAdmin, TravellerRollMi
             title="End date"
         ))
     ]
-    search_fields = ["first_name", "last_name"]
+    search_fields = ["first_name", "last_name", "address"]
     inlines = [FamilyInline, TravellerRouteInline]
     readonly_fields = ["travel_start_date", "travel_end_date", "fare_paying", "created_on", "last_edit", "is_active", "address"]
     actions = ["export_to_csv", "send_sms", "confirmation_letter", "letter_creator"]
@@ -233,15 +233,6 @@ class TravellerAdmin(MyImportExportModelAdmin, admin.ModelAdmin, TravellerRollMi
             return stops.first()
         return "Multiple"
 
-    def address(self, obj):
-        families = Family.objects.filter(traveller__id__exact=obj.id)
-        if families.count() == 0:
-            return ""
-        if families.count() == 1:
-            family = families.first()
-            return f"{family.residential_address} {family.residential_suburb}"
-        return "Multiple"
-
     # def save_model(self, request, obj, form, change):
         # if obj.is_archived and obj.travel_end_date is None:
         #    obj.is_archived = False