complete method

@override Future<void> complete(Job job)

Marks a job as completed and removes it from the active set.

Implementation

@override
Future<void> complete(Job job) async {
  await _db.query('''
    UPDATE $_table
    SET status = 'completed', finished_at = NOW(), reserved_by = NULL
    WHERE id = @id
  ''', {'id': job.id});
}