exports.up = (pgm) => {
  pgm.sql(`
    -- New items are staged, not published. Before this an item was live on the
    -- storefront the instant it was created, with no way to add something, look
    -- at it, and then decide it was ready.
    --
    -- Only the default changes. Existing rows keep whatever status they have —
    -- backfilling would un-publish the entire live catalogue, which is the one
    -- thing this migration must not do.
    ALTER TABLE items ALTER COLUMN status SET DEFAULT 'pending';
  `);
};

exports.down = (pgm) => {
  pgm.sql(`
    ALTER TABLE items ALTER COLUMN status SET DEFAULT 'available';
  `);
};