def _field_actions_for_field(field, actions):
label = capitalize_first(getattr(field, "verbose_name", field.name))
for field_action_type, items in actions.items():
if field.many_to_many or field.many_to_one or field.one_to_one:
# convert item values from primary keys to string-representation for relation-based fields
related_objects = field.related_model.objects.filter(pk__in=items)
missing = len(items) - related_objects.count()
items = [str(obj) for obj in related_objects] + [_("<deleted object>")] * missing
elif hasattr(field, "choices") and field.choices:
# convert values from choice-based fields to their display equivalent
items = [_choice_to_display(field, item) for item in items]
elif isinstance(field, models.BooleanField):
# convert boolean to yes/no
items = list(map(yesno, items))
yield FieldAction(label, field_action_type, items)
def message(self):
if self.action_type == InstanceActionType.CHANGE:
if self.content_object:
message = _("The {cls} {obj} was changed.")
else: # content_object might be deleted
message = _("A {cls} was changed.")
elif self.action_type == InstanceActionType.CREATE:
if self.content_object:
message = _("The {cls} {obj} was created.")
else:
message = _("A {cls} was created.")
elif self.action_type == InstanceActionType.DELETE:
message = _("A {cls} was deleted.")
return message.format(
cls=capitalize_first(self.content_type.model_class()._meta.verbose_name),
obj=f'"{str(self.content_object)}"' if self.content_object else "",
)