2.4 KiB
models.mixins.save_mixin
SavePrepareMixin Objects
class SavePrepareMixin(RelationMixin, AliasMixin)
Used to prepare models to be saved in database
prepare_model_to_save
| @classmethod
| prepare_model_to_save(cls, new_kwargs: dict) -> dict
Combines all preparation methods before saving. Removes primary key for if it's nullable or autoincrement pk field, and it's set to None. Substitute related models with their primary key values as fk column. Populates the default values for field with default set and no value. Translate columns into aliases (db names).
Arguments:
new_kwargs (Dict[str, str]): dictionary of model that is about to be saved
Returns:
(Dict[str, str]): dictionary of model that is about to be saved
_remove_pk_from_kwargs
| @classmethod
| _remove_pk_from_kwargs(cls, new_kwargs: dict) -> dict
Removes primary key for if it's nullable or autoincrement pk field, and it's set to None.
Arguments:
new_kwargs (Dict[str, str]): dictionary of model that is about to be saved
Returns:
(Dict[str, str]): dictionary of model that is about to be saved
substitute_models_with_pks
| @classmethod
| substitute_models_with_pks(cls, model_dict: Dict) -> Dict
Receives dictionary of model that is about to be saved and changes all related models that are stored as foreign keys to their fk value.
Arguments:
model_dict (Dict): dictionary of model that is about to be saved
Returns:
(Dict): dictionary of model that is about to be saved
populate_default_values
| @classmethod
| populate_default_values(cls, new_kwargs: Dict) -> Dict
Receives dictionary of model that is about to be saved and populates the default value on the fields that have the default value set, but no actual value was passed by the user.
Arguments:
new_kwargs (Dict): dictionary of model that is about to be saved
Returns:
(Dict): dictionary of model that is about to be saved