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31 changes: 18 additions & 13 deletions ormar/fields/model_fields.py
Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,11 @@
from typing import Literal # type: ignore
except ImportError: # pragma: no cover
from typing_extensions import Literal # type: ignore

try:
from typing import Self # type: ignore
except ImportError: # pragma: no cover
from typing_extensions import Self # type: ignore


def is_field_nullable(
Expand Down Expand Up @@ -65,7 +70,7 @@ class ModelFieldFactory:
_type: Any = None
_sample: Any = None

def __new__(cls, *args: Any, **kwargs: Any) -> BaseField: # type: ignore
def __new__(cls, *args: Any, **kwargs: Any) -> Self: # type: ignore
cls.validate(**kwargs)

default = kwargs.pop("default", None)
Expand Down Expand Up @@ -161,7 +166,7 @@ def __new__( # type: ignore # noqa CFQ002
min_length: Optional[int] = None,
regex: Optional[str] = None,
**kwargs: Any
) -> BaseField: # type: ignore
) -> Self: # type: ignore
kwargs = {
**kwargs,
**{
Expand Down Expand Up @@ -214,7 +219,7 @@ def __new__( # type: ignore
maximum: Optional[int] = None,
multiple_of: Optional[int] = None,
**kwargs: Any
) -> BaseField:
) -> Self:
autoincrement = kwargs.pop("autoincrement", None)
autoincrement = (
autoincrement
Expand Down Expand Up @@ -255,7 +260,7 @@ class Text(ModelFieldFactory, str):
_type = str
_sample = "text"

def __new__(cls, **kwargs: Any) -> BaseField: # type: ignore
def __new__(cls, **kwargs: Any) -> Self: # type: ignore
kwargs = {
**kwargs,
**{
Expand Down Expand Up @@ -295,7 +300,7 @@ def __new__( # type: ignore
maximum: Optional[float] = None,
multiple_of: Optional[int] = None,
**kwargs: Any
) -> BaseField:
) -> Self:
kwargs = {
**kwargs,
**{
Expand Down Expand Up @@ -361,7 +366,7 @@ class DateTime(ModelFieldFactory, datetime.datetime):

def __new__( # type: ignore # noqa CFQ002
cls, *, timezone: bool = False, **kwargs: Any
) -> BaseField: # type: ignore
) -> Self: # type: ignore
kwargs = {
**kwargs,
**{
Expand Down Expand Up @@ -418,7 +423,7 @@ class Time(ModelFieldFactory, datetime.time):

def __new__( # type: ignore # noqa CFQ002
cls, *, timezone: bool = False, **kwargs: Any
) -> BaseField: # type: ignore
) -> Self: # type: ignore
kwargs = {
**kwargs,
**{
Expand Down Expand Up @@ -504,7 +509,7 @@ def __new__( # type: ignore # noqa CFQ002
max_length: int,
represent_as_base64_str: bool = False,
**kwargs: Any
) -> BaseField: # type: ignore
) -> Self: # type: ignore
kwargs = {
**kwargs,
**{
Expand Down Expand Up @@ -557,7 +562,7 @@ def __new__( # type: ignore
maximum: Optional[int] = None,
multiple_of: Optional[int] = None,
**kwargs: Any
) -> BaseField:
) -> Self:
autoincrement = kwargs.pop("autoincrement", None)
autoincrement = (
autoincrement
Expand Down Expand Up @@ -605,7 +610,7 @@ def __new__( # type: ignore
maximum: Optional[int] = None,
multiple_of: Optional[int] = None,
**kwargs: Any
) -> BaseField:
) -> Self:
autoincrement = kwargs.pop("autoincrement", None)
autoincrement = (
autoincrement
Expand Down Expand Up @@ -657,7 +662,7 @@ def __new__( # type: ignore # noqa CFQ002
max_digits: Optional[int] = None,
decimal_places: Optional[int] = None,
**kwargs: Any
) -> BaseField:
) -> Self:
kwargs = {
**kwargs,
**{
Expand Down Expand Up @@ -721,7 +726,7 @@ class UUID(ModelFieldFactory, uuid.UUID):

def __new__( # type: ignore # noqa CFQ002
cls, *, uuid_format: str = "hex", **kwargs: Any
) -> BaseField:
) -> Self:
kwargs = {
**kwargs,
**{
Expand Down Expand Up @@ -766,7 +771,7 @@ class Enum(ModelFieldFactory):

def __new__( # type: ignore # noqa CFQ002
cls, *, enum_class: Type[E], **kwargs: Any
) -> BaseField:
) -> Self:
kwargs = {
**kwargs,
**{
Expand Down