!112 !94: tests commons modules that contains most of the logic + zoneinfo (#113)

!112

Co-authored-by: bkfox <thomas bkfox net>
Reviewed-on: rc/aircox#113

aircox/admin/filters.py

@@ -13,7 +13,7 @@ class DateFieldFilter(filters.FieldListFilter):
     input_type = "date"
 
     def __init__(self, field, request, params, model, model_admin, field_path):
-        self.field_generic = "%s__" % field_path
+        self.field_generic = f"{field_path}__"
         self.date_params = {
             k: v for k, v in params.items() if k.startswith(self.field_generic)
         }

aircox/admin/mixins.py

@@ -1,41 +0,0 @@
-class UnrelatedInlineMixin:
-    """Inline class that can be included in an admin change view whose model is
-    not directly related to inline's model."""
-
-    view_model = None
-    parent_model = None
-    parent_fk = ""
-
-    def __init__(self, parent_model, admin_site):
-        self.view_model = parent_model
-        super().__init__(self.parent_model, admin_site)
-
-    def get_parent(self, view_obj):
-        """Get formset's instance from `obj` of AdminSite's change form."""
-        field = self.parent_model._meta.get_field(self.parent_fk).remote_field
-        return getattr(view_obj, field.name, None)
-
-    def save_parent(self, parent, view_obj):
-        """Save formset's instance."""
-        setattr(parent, self.parent_fk, view_obj)
-        parent.save()
-        return parent
-
-    def get_formset(self, request, obj):
-        ParentFormSet = super().get_formset(request, obj)
-        inline = self
-
-        class FormSet(ParentFormSet):
-            view_obj = None
-
-            def __init__(self, *args, instance=None, **kwargs):
-                self.view_obj = instance
-                instance = inline.get_parent(instance)
-                self.instance = instance
-                super().__init__(*args, instance=instance, **kwargs)
-
-            def save(self):
-                inline.save_parent(self.instance, self.view_obj)
-                return super().save()
-
-        return FormSet