Agent Zero
43 lines
1.5 KiB
Python
43 lines
1.5 KiB
Python
"""Consumer inbox model for outbox idempotency."""
|
|
|
|
from __future__ import annotations
|
|
|
|
import uuid
|
|
from datetime import datetime
|
|
|
|
from sqlalchemy import DateTime, ForeignKey, String, Text, UniqueConstraint, func
|
|
from sqlalchemy.dialects.postgresql import UUID as PGUUID
|
|
from sqlalchemy.orm import Mapped, mapped_column
|
|
|
|
from app.core.db import Base
|
|
|
|
|
|
class ConsumerInbox(Base):
|
|
"""Tracks which consumers have processed which outbox events.
|
|
|
|
Prevents duplicate processing when a worker crashes between
|
|
delivering an event and marking it as published.
|
|
"""
|
|
|
|
__tablename__ = "consumer_inbox"
|
|
__table_args__ = (
|
|
UniqueConstraint("event_id", "consumer_name", name="uq_consumer_inbox_event_consumer"),
|
|
)
|
|
|
|
id: Mapped[uuid.UUID] = mapped_column(
|
|
PGUUID(as_uuid=True), primary_key=True, default=uuid.uuid4
|
|
)
|
|
event_id: Mapped[uuid.UUID] = mapped_column(
|
|
PGUUID(as_uuid=True),
|
|
ForeignKey("event_outbox.id", ondelete="CASCADE"),
|
|
nullable=False,
|
|
index=True,
|
|
)
|
|
consumer_name: Mapped[str] = mapped_column(String(100), nullable=False, index=True)
|
|
status: Mapped[str] = mapped_column(String(20), nullable=False, default="pending")
|
|
processed_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
|
|
error_message: Mapped[str | None] = mapped_column(Text, nullable=True)
|
|
created_at: Mapped[datetime] = mapped_column(
|
|
DateTime(timezone=True), nullable=False, server_default=func.now()
|
|
)
|