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brain-of-reese/alembic/versions/0011_doc_drafts.py
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"""doc_drafts: server-side drafts of chat answers saved as docs (phase 59)
Revision ID: 0011
Revises: 0010
Create Date: 2026-09-01
Phase 59 (save chat answers as docs — edit screen → commit + push to the
.env docs branch, owner revision D3 2026-08-31: no PR tooling — one
additive, reversible table, no other schema change, A13):
* ``doc_drafts`` — one row per "Save as doc" action: the long answer
body must live on the **server**, never in a URL. ``token`` is an
unguessable 128-bit ``uuid4`` — the edit screen's URL credential
(``/doc-edit.html?draft=<token>``, the share-token trust model,
phase 51) — UNIQUE (``ix_doc_drafts_token``) + NOT NULL. Unlike the
NULLable ``saved_chats.share_token`` there is no "un-drafted" state,
so no NULLs ever occur; the unique index is the guard against
duplicate tokens.
* ``title`` / ``path`` / ``body`` — the editable triple (TEXT NOT NULL;
the body is the answer's raw markdown, never HTML — the
``bor.chat.v1`` record shape).
* ``status`` — plain TEXT + server default ``'draft'`` (the
``git_sources.kind`` phase-38 precedent — the ``draft`` | ``pushed``
domain is enforced by the API layer, not a CHECK constraint).
* ``branch`` / ``commit_sha`` — TEXT NULL: set by the push endpoint
(task 04) when it commits + pushes the file to the ``BOR_DOCS_REPO``
branch, recording the branch + the pushed branch's new HEAD (the UI's
branch + sha feedback).
* ``created_at`` / ``updated_at`` — TIMESTAMPTZ NOT NULL, stamped
server-side (``updated_at`` bumps on every row update via the ORM
``onupdate`` — the ``saved_chats`` precedent).
"""
from __future__ import annotations
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql
from alembic import op
revision = "0011"
down_revision = "0010"
branch_labels = None
depends_on = None
def upgrade() -> None:
op.create_table(
"doc_drafts",
sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
sa.Column("token", postgresql.UUID(as_uuid=True), nullable=False),
sa.Column("title", sa.Text(), nullable=False),
sa.Column("path", sa.Text(), nullable=False),
sa.Column("body", sa.Text(), nullable=False),
sa.Column("status", sa.Text(), nullable=False, server_default=sa.text("'draft'")),
sa.Column("branch", sa.Text(), nullable=True),
sa.Column("commit_sha", sa.Text(), nullable=True),
sa.Column(
"created_at",
sa.DateTime(timezone=True),
server_default=sa.func.now(),
nullable=False,
),
sa.Column(
"updated_at",
sa.DateTime(timezone=True),
server_default=sa.func.now(),
nullable=False,
),
)
# The token is the URL credential — a unique handle (the
# saved_chats.share_token unique-index precedent, phase 51).
op.create_index("ix_doc_drafts_token", "doc_drafts", ["token"], unique=True)
def downgrade() -> None:
# Safe order: drop the token index first, then the table (A13 —
# fully reversible, no other schema change).
op.drop_index("ix_doc_drafts_token", table_name="doc_drafts")
op.drop_table("doc_drafts")