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project-manager/migrations/006_add_card_statuses.sql
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-- Project-specific card statuses. Every project gets a "To do" / "Doing" /
-- "Done" set when it is created (see CardStatusRepository::seedDefaults); the
-- backfill below covers projects that already existed.
CREATE TABLE IF NOT EXISTS card_statuses (
id INTEGER PRIMARY KEY AUTOINCREMENT,
project_id INTEGER NOT NULL REFERENCES projects (id) ON DELETE CASCADE,
name TEXT NOT NULL,
position INTEGER NOT NULL DEFAULT 0,
created_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
updated_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now'))
);
CREATE INDEX IF NOT EXISTS idx_card_statuses_project_position
ON card_statuses (project_id, position);
-- Nullable, and left NULL for existing cards: a card without a status sits in
-- the project "inbox" until the user gives it one. Losing a status (a deleted
-- status row) clears the link rather than removing the card.
ALTER TABLE cards
ADD COLUMN status_id INTEGER REFERENCES card_statuses (id) ON DELETE SET NULL;
CREATE INDEX IF NOT EXISTS idx_cards_status ON cards (status_id);
-- Backfill: give every pre-existing project the default status set.
INSERT INTO card_statuses (project_id, name, position)
SELECT p.id, d.name, d.position
FROM projects p
CROSS JOIN (
SELECT 'To do' AS name, 0 AS position
UNION ALL SELECT 'Doing', 1
UNION ALL SELECT 'Done', 2
) d;