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mangaBookmark/backend/internal/store/migrations/0002_series.sql
T
2026-08-08 07:19:54 +07:00

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SQL

-- One row per distinct work, shared by every bookmark that tracks it
-- (ADR-0003). Keyed (site, series_id), the pair a bookmark key decomposes
-- into. title/series_url/cover are written once, at creation, and never
-- again: client-supplied values are ignored once the row exists and the
-- poller is the only party that may change them. kind and the latest-chapter
-- fields are last-write-wins like the bookmark's own fields.
CREATE TABLE series (
site text NOT NULL,
series_id text NOT NULL,
title text NOT NULL DEFAULT '',
series_url text NOT NULL DEFAULT '',
cover text NOT NULL DEFAULT '',
kind text NOT NULL DEFAULT 'manga',
latest_chapter text NOT NULL DEFAULT '',
latest_chapter_num double precision,
-- When the server last polled this series, unix ms; 0 means never, and sorts
-- first so a new bookmark is picked up on the next tick with no special case.
latest_checked_at bigint NOT NULL DEFAULT 0,
PRIMARY KEY (site, series_id)
);
-- Backfill from today's rows. The bookmark key's uniqueness makes
-- (site, series_id) unique in practice; DISTINCT is belt and braces.
INSERT INTO series (site, series_id, title, series_url, cover, kind,
latest_chapter, latest_chapter_num, latest_checked_at)
SELECT DISTINCT site, series_id, title, series_url, cover, kind,
latest_chapter, latest_chapter_num, latest_checked_at
FROM bookmarks;
-- The bookmark keeps only what differs between readers (ADR-0003): progress,
-- favourite, lifecycle bucket. The dropped columns now live on series.
ALTER TABLE bookmarks
DROP COLUMN title,
DROP COLUMN series_url,
DROP COLUMN cover,
DROP COLUMN kind,
DROP COLUMN latest_chapter,
DROP COLUMN latest_chapter_num,
DROP COLUMN latest_checked_at;
-- A bookmark may not point at a series that does not exist. No cascade: a
-- series outlives its last bookmark, and deleting one is not a store operation.
ALTER TABLE bookmarks
ADD CONSTRAINT bookmarks_series_fk
FOREIGN KEY (site, series_id) REFERENCES series (site, series_id);