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import dataclasses |
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import sys |
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if sys.version_info >= (3, 9): |
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Dict = dict |
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else: |
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from typing import Dict |
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from collections import UserString |
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from typing import Any |
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from typing import ClassVar |
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from typing import Optional |
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from .typing import String |
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from ._utils import export |
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@export |
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@dataclasses.dataclass(frozen=True) |
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class VerboseDataclassMixin: |
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verbose_name: ClassVar[String] = dataclasses.field( |
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init=False, |
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) |
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help_text: ClassVar[Optional[String]] = dataclasses.field( |
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init=False, |
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default=None, |
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) |
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@export |
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class PrimitiveDataclassMixin: |
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def to_primitive(self, *args, **kwargs) -> Dict[str, Any]: |
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return { |
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key: self._value_to_primitive(getattr(self, key), *args, **kwargs) |
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for key in self.__dataclass_fields__.keys() |
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} |
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@staticmethod |
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def _value_to_primitive(value: Any, *args, **kwargs) -> Any: |
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if value is None: |
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return |
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if hasattr(value, "to_primitive"): |
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return value.to_primitive(*args, **kwargs) |
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if hasattr(value, "isoformat"): |
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return value.isoformat() |
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if isinstance(value, UserString): |
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return str(value) |
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return value |
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@classmethod |
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def from_primitive(cls, value: Dict[str, Any], *args, **kwargs) -> Any: |
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kwargs = { |
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key: cls._value_from_primitive( |
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value=value[key], |
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type_=field.type, |
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*args, |
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**kwargs |
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) |
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for key, field in cls.__dataclass_fields__.items() |
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if field.init |
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} |
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return cls(**kwargs) |
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@staticmethod |
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def _value_from_primitive(value: Any, type_: type, *args, **kwargs) -> Any: |
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if value is None: |
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return |
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if isinstance(value, type_): |
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return value |
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if hasattr(type_, "fromisoformat"): |
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return type_.fromisoformat(value) |
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if hasattr(type_, "from_primitive"): |
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return type_.from_primitive(value, *args, **kwargs) |
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return type_(value) |
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IL2HorusTeam /
il2fb-commons
