exports.up = async knex => {
    await knex.schema.createTable('wants', table => {
        table.uuid('id')
            .primary()
            .defaultTo(knex.raw('gen_random_uuid()'));

        table.integer('release')
            .notNullable()
            .index();

        table.uuid('user')
        table.foreign('user')
            .references('id')
            .inTable('users')
            .onDelete('CASCADE');

        table.jsonb('data')
            .notNullable();

        // user can only want a release once
        table.unique(['user', 'release']);

        table.timestamps(true, true);
    });
};

exports.down = async () => true;