Giorgio Gilestro
78ce8c8b0d
Five existing migrations used op.alter_column / op.create_unique_constraint / op.drop_constraint / op.create_foreign_key directly on the users + quotes + quotes_daily tables. SQLite has no native support for those operations and requires Alembic's batch_alter_table copy-and-rename workaround. This wasn't noticed until now because the test suite uses Base.metadata.create_all to materialise schema, not the migration chain itself; and prod is MariaDB. But running `alembic upgrade head` against a fresh SQLite database (developer onboarding, CI smoke tests, the test container's own bootstrap) would fail at 0005. Fixes: - alembic/env.py: set render_as_batch=True when the dialect is SQLite. This auto-wraps any future autogenerated migration but doesn't retroactively rewrite existing op.* calls. - 0005 (widen quotes.symbol), 0013 (referrals), 0018 (polar webhook), 0019 (stripe), 0023 (users.lang index + qd_symbol widen) explicitly wrap their problematic ops in `with op.batch_alter_table(...) as bop`. Now `alembic upgrade head` + `alembic downgrade base` round-trip cleanly on a fresh SQLite database. MariaDB prod behaviour unchanged. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
76 lines
3.1 KiB
Python
76 lines
3.1 KiB
Python
"""referrals: user.referral_code + user.referred_by_user_id + referrals table
|
|
|
|
Phase D.1 of the multi-user billing work. Adds:
|
|
|
|
- `users.referral_code` — unique 8-char URL-safe code per user, generated
|
|
lazily on first visit to /settings (or signup).
|
|
- `users.referred_by_user_id` — FK to the user who referred this account,
|
|
set at signup if `?ref=<code>` was supplied. Null otherwise.
|
|
- `referrals` — audit trail. One row per (referrer, referred) pair when the
|
|
link is captured. `converted_at` / `credited_at` filled in D.3 by the
|
|
Paddle webhook when the referred user makes their first paid subscription.
|
|
|
|
The Credit table that holds actual discount records is deferred to D.3 —
|
|
no point creating it until Paddle is wired and we know what to write.
|
|
|
|
Revision ID: 0013
|
|
Revises: 0012
|
|
Create Date: 2026-05-18
|
|
"""
|
|
from typing import Sequence, Union
|
|
|
|
import sqlalchemy as sa
|
|
from alembic import op
|
|
|
|
|
|
revision: str = "0013"
|
|
down_revision: Union[str, None] = "0012"
|
|
branch_labels: Union[str, Sequence[str], None] = None
|
|
depends_on: Union[str, Sequence[str], None] = None
|
|
|
|
|
|
def upgrade() -> None:
|
|
# batch_alter_table wraps ADD CONSTRAINT in a copy-and-rename for
|
|
# SQLite (no native ALTER constraints support); on MariaDB/Postgres
|
|
# it falls through to plain ALTER statements.
|
|
with op.batch_alter_table("users") as bop:
|
|
bop.add_column(sa.Column("referral_code", sa.String(16), nullable=True))
|
|
bop.create_unique_constraint(
|
|
"uq_users_referral_code", ["referral_code"],
|
|
)
|
|
bop.add_column(sa.Column("referred_by_user_id", sa.Integer, nullable=True))
|
|
bop.create_foreign_key(
|
|
"fk_users_referred_by",
|
|
"users",
|
|
["referred_by_user_id"], ["id"],
|
|
ondelete="SET NULL",
|
|
)
|
|
|
|
op.create_table(
|
|
"referrals",
|
|
sa.Column("id", sa.BigInteger, primary_key=True, autoincrement=True),
|
|
sa.Column("referrer_user_id", sa.Integer,
|
|
sa.ForeignKey("users.id", ondelete="CASCADE"), nullable=False),
|
|
# UNIQUE — a single user can only be referred once, ever.
|
|
sa.Column("referred_user_id", sa.Integer,
|
|
sa.ForeignKey("users.id", ondelete="CASCADE"), nullable=False),
|
|
sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
|
|
# converted_at = referred user made their first paid sub. credited_at =
|
|
# we successfully applied the discount via Paddle. Both filled in D.3.
|
|
sa.Column("converted_at", sa.DateTime(timezone=True)),
|
|
sa.Column("credited_at", sa.DateTime(timezone=True)),
|
|
sa.UniqueConstraint("referred_user_id", name="uq_referrals_referred"),
|
|
)
|
|
op.create_index(
|
|
"ix_referrals_referrer", "referrals", ["referrer_user_id"],
|
|
)
|
|
|
|
|
|
def downgrade() -> None:
|
|
op.drop_index("ix_referrals_referrer", table_name="referrals")
|
|
op.drop_table("referrals")
|
|
with op.batch_alter_table("users") as bop:
|
|
bop.drop_constraint("fk_users_referred_by", type_="foreignkey")
|
|
bop.drop_column("referred_by_user_id")
|
|
bop.drop_constraint("uq_users_referral_code", type_="unique")
|
|
bop.drop_column("referral_code")
|