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inkwell/alembic/versions/0034_share_constraints.py
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bvandeusenandClaude Opus 5.5 a51a563fe7
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Server comments describe the code to a stranger (#6221)
Rule 32 "Comments describe the product to a stranger" sweep over
src/, alembic/ and tests/. Comments and docstrings now say what the code
does and the reason as a present-tense constraint, briefly.

Removed:
- issue, task, note, rule, milestone and family-idea references
- "used to" / before-and-after narration
- quotes of decisions and incident stories from the deploying instance
- paragraph-length arguments, where a line or two carries the fact

Kept every hazard as a present-tense fact, e.g. timing oracles, the
proxy hop direction, and migrations that must stay frozen.

Also:
- Three test names lose "still"/"used to"/"pre_m304" phrasing.
- pyproject's description drops "FabledSword family".

The history these comments carried stays in Scribe and in git log.
A comment-stripping diff (Scribe snippet #6226 "codeonly.py — prove a
diff changed only comments") shows no code changed apart from the
renamed tests and the description string.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-21 20:07:47 -04:00

50 lines
1.6 KiB
Python

"""shares: one grant per note and person, and only the permissions the app knows
Revision ID: 0034
Revises: 0033
Create Date: 2026-10-07
For the Share dialog:
- A unique index on (resource_type, resource_id, shared_with_user_id) where a user is
the target, so sharing a note with someone twice updates the one grant rather than
stacking two (the same for a group).
- A check that `permission` is `view` or `edit`.
- An index on `shared_with_user_id` for "Shared with me".
## Downgrade
Drops the indexes and the check. The rows stay.
"""
from alembic import op
revision = "0034"
down_revision = "0033"
branch_labels = None
depends_on = None
def upgrade() -> None:
op.create_index(
"uq_shares_resource_user",
"shares",
["resource_type", "resource_id", "shared_with_user_id"],
unique=True,
postgresql_where="shared_with_user_id IS NOT NULL",
)
op.create_index(
"uq_shares_resource_group",
"shares",
["resource_type", "resource_id", "shared_with_group_id"],
unique=True,
postgresql_where="shared_with_group_id IS NOT NULL",
)
op.create_index("ix_shares_user", "shares", ["shared_with_user_id"])
op.create_check_constraint("ck_shares_permission", "shares", "permission IN ('view', 'edit')")
def downgrade() -> None:
op.drop_constraint("ck_shares_permission", "shares", type_="check")
op.drop_index("ix_shares_user", table_name="shares")
op.drop_index("uq_shares_resource_group", table_name="shares")
op.drop_index("uq_shares_resource_user", table_name="shares")