fix au cas où Place n'existe pas avant migration

src/agenda_culturel/models.py

@@ -182,6 +182,13 @@ class Place(models.Model):
     def match(self, event):
         return event.location in self.aliases
 
+    def get_all_cities():
+        try:
+            tags = list([p["city"] for p in Place.objects.values("city").distinct().order_by("city")])
+        except:
+            tags = []
+        return tags
+
 
 class Event(models.Model):
 

src/agenda_culturel/views.py

@@ -96,7 +96,7 @@ class EventFilter(django_filters.FilterSet):
 
     city = django_filters.MultipleChoiceFilter(label="Filtrer par ville",
         field_name='exact_location__city',
-        choices=[(p["city"], p["city"]) for p in Place.objects.values("city").distinct().order_by("city")],
+        choices=[(c, c) for c in Place.get_all_cities()],
         widget=forms.CheckboxSelectMultiple)
 
     status = django_filters.MultipleChoiceFilter(label="Filtrer par status",