options.py 文件源码

def construct_change_message(self, request, form, formsets, add=False):
        """
        Construct a JSON structure describing changes from a changed object.
        Translations are deactivated so that strings are stored untranslated.
        Translation happens later on LogEntry access.
        """
        change_message = []
        if add:
            change_message.append({'added': {}})
        elif form.changed_data:
            change_message.append({'changed': {'fields': form.changed_data}})

        if formsets:
            with translation_override(None):
                for formset in formsets:
                    for added_object in formset.new_objects:
                        change_message.append({
                            'added': {
                                'name': force_text(added_object._meta.verbose_name),
                                'object': force_text(added_object),
                            }
                        })
                    for changed_object, changed_fields in formset.changed_objects:
                        change_message.append({
                            'changed': {
                                'name': force_text(changed_object._meta.verbose_name),
                                'object': force_text(changed_object),
                                'fields': changed_fields,
                            }
                        })
                    for deleted_object in formset.deleted_objects:
                        change_message.append({
                            'deleted': {
                                'name': force_text(deleted_object._meta.verbose_name),
                                'object': force_text(deleted_object),
                            }
                        })
        return change_message