django_model_constructor

django_spire.contrib.constructor.django_model_constructor

TypeDjangoModel = TypeVar('TypeDjangoModel', bound=Model, covariant=True) module-attribute

BaseDjangoModelConstructor

Bases: BaseConstructor[TypeDjangoModel], ABC, Generic[TypeDjangoModel]

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__()

model_obj_is_created property

model_obj_is_new property

obj_class property