create table if not exists customers ( id integer primary key, username text not null unique, receipt text not null unique, billing_email text, invitation id, created_at int not null default (unixepoch()), updated_at int not null default (unixepoch()), foreign key (invitation) references invitations (id) ); create index if not exists customers_username_dex on customers (lower(username)); create index if not exists customers_email_dex on customers (lower(billing_email)); create index if not exists customers_invitation_dex on customers (invitation); -- does this need to be created? it's already a foreign key create trigger if not exists update_last_updated_customers after update on customers when OLD.updated_at = NEW.updated_at or OLD.updated_at is null BEGIN update customers set updated_at = (select unixepoch()) where id=NEW.id; END; create table if not exists invitations ( id integer primary key, owner integer not null, remaining integer not null default 1, expires_at integer, created_at integer not null default (unixepoch()), updated_at integer not null default (unixepoch()), foreign key (owner) references customers (id) ); create index if not exists invitations_owner_dex on invitations (owner); create trigger if not exists update_updated_at_invitations after update on invitations when OLD.updated_at = NEW.updated_at or OLD.updated_at is null BEGIN update invitations set updated_at = (select unixepoch()) where id=NEW.id; END;