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csv-parser: tighten CsvFormatTemplate generics + last_used_at note

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Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Giorgio Gilestro 2026-05-27 12:01:06 +02:00
parent 3f1d2a1034
commit fb3498efb0
1 changed files with 7 additions and 3 deletions
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10
app/models.py
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@ -446,15 +446,19 @@ class CsvFormatTemplate(Base):
id: Mapped[int] = mapped_column(_PK, primary_key=True, autoincrement=True) id: Mapped[int] = mapped_column(_PK, primary_key=True, autoincrement=True)
fingerprint: Mapped[str] = mapped_column(String(64), unique=True, nullable=False) fingerprint: Mapped[str] = mapped_column(String(64), unique=True, nullable=False)
headers: Mapped[list] = mapped_column(JSON, nullable=False) headers: Mapped[list[str]] = mapped_column(JSON, nullable=False)
sample_row: Mapped[list] = mapped_column(JSON, nullable=False) sample_row: Mapped[list[str]] = mapped_column(JSON, nullable=False)
mapping: Mapped[dict] = mapped_column(JSON, nullable=False) mapping: Mapped[dict[str, str | None]] = mapped_column(JSON, nullable=False)
preamble_rows: Mapped[int] = mapped_column(Integer, nullable=False, default=0) preamble_rows: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
delimiter: Mapped[str] = mapped_column(String(1), nullable=False, default=",") delimiter: Mapped[str] = mapped_column(String(1), nullable=False, default=",")
broker_label: Mapped[str | None] = mapped_column(String(128)) broker_label: Mapped[str | None] = mapped_column(String(128))
first_seen_at: Mapped[datetime] = mapped_column( first_seen_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, default=utcnow, DateTime(timezone=True), nullable=False, default=utcnow,
) )
# use_count and last_used_at are application-managed: parse_with_llm
# increments use_count and sets last_used_at = utcnow() on every cache hit.
# No onupdate hook — we don't want unrelated writes (e.g. broker_label edits)
# to re-stamp last_used_at.
use_count: Mapped[int] = mapped_column(Integer, nullable=False, default=1) use_count: Mapped[int] = mapped_column(Integer, nullable=False, default=1)
last_used_at: Mapped[datetime] = mapped_column( last_used_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, default=utcnow, DateTime(timezone=True), nullable=False, default=utcnow,