SortableHiddenMixin AttributeError: модуль 'nested_admin' не имеет атрибута 'SortableHiddenMixin'
Я хочу использовать drag and drop для сортировки элементов в списке в django. admin использует nested_admin 3.2.4. Я видел эту проблему на github LINK НО ЭТО НЕ РАБОТАЕТ <<<<3><3><>>.
return ModuleType.__getattribute__(self, name)
AttributeError: module 'nested_admin' has no attribute 'SortableHiddenMixin'
class ReportSectionFieldInline(nested_admin.SortableHiddenMixin,
nested_admin.NestedTabularInline):
model = ReportSectionField
extra = 0
classes = ['collapse']
class ReportSectionInline(nested_admin.NestedTabularInline):
model = ReportSection
inlines = [ReportSectionFieldInline]
extra = 0
classes = ['secciones-informe']
class Media:
css = {
"all": ("admin/css/reportsection.css",)
}
class ReportAdmin(nested_admin.NestedModelAdmin):
list_display = ('id', 'description', 'type_report', 'modulo', 'active',)
search_fields = ('description', 'type_report',)
list_filter = ('type_report', 'active',)
inlines = [ReportSectionInline]