add foundation for exid data structures
parent
fa91114e71
commit
de9d3380fe
@ -1,8 +1,24 @@
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from .exids_base import (
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ExIdKey_Columns,
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ExIdKeyCompatible,
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ExIdKeyData,
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ExIdKeyDict,
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ExIdKeyTuple,
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new_ExIdKey,
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pack_ExIdKey,
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)
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from .uris import (
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UriHolder,
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)
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__all__ = [
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"ExIdKey_Columns",
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"ExIdKeyCompatible",
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"ExIdKeyData",
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"ExIdKeyDict",
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"ExIdKeyTuple",
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"UriHolder",
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"new_ExIdKey",
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"pack_ExIdKey",
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]
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@ -0,0 +1,172 @@
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from __future__ import annotations
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from dataclasses import dataclass
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from typing import (
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Optional,
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Protocol,
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Tuple,
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Type,
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TypeAlias,
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TypeVar,
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TypedDict,
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Unpack,
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)
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from pony import orm
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WIKIDATA_PROPERTY_PREFIX = "org.wikidata/property"
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T = TypeVar("T")
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# attributes & docstrings need to be synced (manually)
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# all occassions are tagged with SYNC:ExIdKey:Properties
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ExIdKeyTuple: TypeAlias = Tuple[bool, str]
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class ExIdKeyDict(TypedDict):
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# SYNC:ExIdKey:Properties
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wikidata_prop: bool
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"""
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`True` if key_name is a wikidata property,
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`False` if key_name is a canonical key name.
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"""
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key_name: str
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"""
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key name for external identifier
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Should be used externally.
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Should be unique worldwide, but one per external identifier.
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Can either be a Wikidata property id (starting with `P`),
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otherwise a canonical key names (see `docs/canonical_exids.md`).
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"""
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class ExIdKeyData(Protocol):
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# SYNC:ExIdKey:Properties
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wikidata_prop: bool
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"""
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`True` if key_name is a wikidata property,
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`False` if key_name is a canonical key name.
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"""
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key_name: str
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"""
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key name for external identifier
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Should be used externally.
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Should be unique worldwide, but one per external identifier.
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Can either be a Wikidata property id (starting with `P`),
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otherwise a canonical key names (see `docs/canonical_exids.md`).
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"""
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@property
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def key_map(self) -> ExIdKeyDict:
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# SYNC:ExIdKey:Properties
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return {
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"wikidata_prop": self.wikidata_prop,
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"key_name": self.key_name,
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}
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@property
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def key_data_copy(self) -> ExIdKeyData:
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return pack_ExIdKey(key_data=self.key_map)
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@property
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def key_str(self) -> str:
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# SYNC:ExIdKey:Properties
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return (
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WIKIDATA_PROPERTY_PREFIX + ":" if self.wikidata_prop else ""
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) + self.key_name
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ExIdKeyCompatible: TypeAlias = ExIdKeyTuple | ExIdKeyDict | ExIdKeyData
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@dataclass
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class ExIdKey_Native(ExIdKeyData):
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"""implementer of ExIdKeyProto as dataclass"""
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# SYNC:ExIdKey:Properties
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wikidata_prop: bool
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"""
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`True` if key_name is a wikidata property,
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`False` if key_name is a canonical key name.
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"""
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key_name: str
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"""
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key name for external identifier
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Should be used externally.
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Should be unique worldwide, but one per external identifier.
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Can either be a Wikidata property id (starting with `P`),
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otherwise a canonical key names (see `docs/canonical_exids.md`).
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"""
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def new_ExIdKey(**kwargs: Unpack[ExIdKeyDict]) -> ExIdKeyData:
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return ExIdKey_Native(**kwargs)
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def pack_ExIdKey(key_data: ExIdKeyCompatible) -> ExIdKeyData:
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if isinstance(key_data, tuple):
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# SYNC:ExIdKey:Properties
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return ExIdKey_Native(wikidata_prop=key_data[0], key_name=key_data[1])
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if isinstance(key_data, dict):
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return ExIdKey_Native(**key_data)
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return key_data
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class ExIdKey_Columns(ExIdKeyData):
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"""implementer of ExIdKeyProto for Pony tables"""
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# SYNC:ExIdKey:Properties
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wikidata_prop: bool = orm.Required(bool)
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"""
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`True` if key_name is a wikidata property,
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`False` if key_name is a canonical key name.
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"""
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key_name: str = orm.Required(str)
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"""
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key name for external identifier
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Should be used externally.
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Should be unique worldwide, but one per external identifier.
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Can either be a Wikidata property id (starting with `P`),
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otherwise a canonical key names (see `docs/canonical_exids.md`).
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"""
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orm.composite_key(wikidata_prop, key_name)
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@classmethod
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def get_by_data(cls: Type[T], key_data: ExIdKeyCompatible) -> Optional[T]:
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d = pack_ExIdKey(key_data)
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# SYNC:ExIdKey:Properties
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return cls.get(
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wikidata_prop=d.wikidata_prop,
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key_name=d.key_name,
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)
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def update_from_key_map(self, key_data: ExIdKeyCompatible) -> bool:
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data = pack_ExIdKey(key_data=key_data)
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if not self.needs_update(key_data=data):
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return False
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# SYNC:ExIdKey:Properties
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self.wikidata_prop = data.wikidata_prop
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self.key_name = data.key_name
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return True
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def needs_update(self, key_data: ExIdKeyCompatible) -> bool:
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data = pack_ExIdKey(key_data=key_data)
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# SYNC:ExIdKey:Properties
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return any(
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(
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self.wikidata_prop == data.wikidata_prop,
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self.key_name == data.key_name,
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)
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)
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