#5507 "Alert emails through the outbox, gathered for 2 minutes" (milestone 501). Replaces the in-memory core/alert_burst.py. - outbox.hold_alert: an alert joins each recipient's held alert email, or opens one due 2 minutes later (System 156 ruling). A Postgres advisory lock keeps two alerts at once from opening two windows for one reader. - email_outbox_events.alert_json (migration 0043) keeps the alert as it fired, so the email written when the window closes says what it said. - write_held writes it then, in the reader's zone: the usual alert email for one alert, the list for several (outbox.alert_words). - after_settle records on each AlertEvent, once every email carrying it has settled: email_sent, or email_error naming each reader it didn't reach and the server's reason. - A held email survives a restart and goes out when its window closes. - A refusal of a message's one recipient no longer repeats the address. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
27 lines
882 B
Python
27 lines
882 B
Python
"""The alert each queued email carries, as it was when it fired (#5507), so
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an email written when its 2-minute window closes says what the alert said.
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Revision ID: 0043_outbox_alert_words
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Revises: 0042_email_outbox
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Create Date: 2026-10-09
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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revision: str = "0043_outbox_alert_words"
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down_revision: Union[str, None] = "0042_email_outbox"
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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# No row links an alert yet (#5506 shipped the table unused), so the
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# empty default is only for the ALTER.
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op.add_column("email_outbox_events",
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sa.Column("alert_json", sa.Text, nullable=False, server_default="{}"))
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def downgrade() -> None:
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op.drop_column("email_outbox_events", "alert_json")
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