anti
d47a84c90b
decnet/web/db/models.py was approaching 1000 lines across User/Log/ Attacker/Swarm/Topology/Workers/Updater/Health domains. Split into a package with one module per domain; __init__.py re-exports every symbol so all 52 call sites keep importing from decnet.web.db.models unchanged.
24 lines
859 B
Python
24 lines
859 B
Python
"""Shared column/validator helpers used across model domain modules."""
|
|
from datetime import datetime
|
|
from typing import Annotated, Any, Optional
|
|
|
|
from pydantic import BeforeValidator
|
|
from sqlalchemy import Text
|
|
from sqlalchemy.dialects.mysql import MEDIUMTEXT
|
|
|
|
# Use on columns that accumulate over an attacker's lifetime (commands,
|
|
# fingerprints, state blobs). TEXT on MySQL caps at 64 KiB; MEDIUMTEXT
|
|
# stretches to 16 MiB. SQLite has no fixed-width text types so Text()
|
|
# stays unchanged there.
|
|
_BIG_TEXT = Text().with_variant(MEDIUMTEXT(), "mysql")
|
|
|
|
|
|
def _normalize_null(v: Any) -> Any:
|
|
if isinstance(v, str) and v.lower() in ("null", "undefined", ""):
|
|
return None
|
|
return v
|
|
|
|
|
|
NullableDatetime = Annotated[Optional[datetime], BeforeValidator(_normalize_null)]
|
|
NullableString = Annotated[Optional[str], BeforeValidator(_normalize_null)]
|