Bases: BaseDjangoModelService['OrderingModelMixin']
Source code in django_spire/contrib/constructor/constructor.py
| def __init__(self, obj: Any = None):
self._obj_type_name: str = str(
next(iter(self.__class__.__annotations__.values()))
).split('.')[-1]
if obj is None:
return
self._obj_mro_type_names = [cls.__name__ for cls in obj.__class__.__mro__]
if self._obj_type_name not in self._obj_mro_type_names:
message = f'{self.__class__.__name__} was instantiated with obj type "{obj.__class__.__name__}" and failed as it was expecting "{self._obj_type_name}".'
raise ConstructorError(message)
self._obj_type: type[TypeAny] = obj.__class__
if self._obj_type is None or self._obj_type is ...:
message = f'{self.__class__.__name__} top class attribute must have an annotated type.'
raise ConstructorError(message)
self.obj: TypeAny = obj
if ABC not in self.__class__.__bases__:
if not self._obj_is_valid:
message = f'{self._obj_type_name} failed to validate on {self.__class__.__name__}'
raise ConstructorError(message)
self.__post_init__()
|
move_to_position
Source code in django_spire/contrib/ordering/services/processor_service.py
| def move_to_position(
self,
destination_objects: QuerySet[Model],
position: int,
origin_objects: QuerySet[Model] = None,
):
# If origin objects not passed, assume origin objects are same as destination
if origin_objects is None:
origin_objects = destination_objects
ordering_mixin_validator = OrderingMixinValidator(
destination_objects=destination_objects,
position=position,
obj=self.obj,
origin_objects=origin_objects,
)
if not ordering_mixin_validator.validate():
message = 'Ordering validation failed.'
raise OrderingMixinGroupError(
message,
ordering_mixin_validator.errors
)
destination_objects = destination_objects.exclude(pk=self.obj.pk).order_by('order')
origin_objects = origin_objects.exclude(pk=self.obj.pk).order_by('order')
self._reorder_destination_and_origin_objects(
destination_objects=destination_objects,
origin_objects=origin_objects,
insert_position=position,
)
self.obj.order = position
self.obj.save(update_fields=['order'])
|
remove_from_objects
Source code in django_spire/contrib/ordering/services/processor_service.py
| def remove_from_objects(
self,
destination_objects: QuerySet[Model],
):
ordering_mixin_validator = OrderingMixinValidator(
destination_objects=destination_objects,
position=0,
obj=self.obj,
origin_objects=destination_objects,
)
if not ordering_mixin_validator.validate():
message = 'Ordering validation failed.'
raise ExceptionGroup(
message,
ordering_mixin_validator.errors
)
destination_objects = destination_objects.exclude(pk=self.obj.pk).order_by('order')
self._reorder_objects(objects=destination_objects)
|