code: func (t *RacksTable) fetch(c context.Context) error {
  	db := database.Get(c)
  	rows, err := db.QueryContext(c, `
  		SELECT id, name, description, state, datacenter_id
  		FROM racks
  	`)
  	if err != nil {
  		return errors.Annotate(err, "failed to select racks").Err()
  	}
  	defer rows.Close()
  	for rows.Next() {
  		rack := &Rack{}
  		if err := rows.Scan(&rack.Id, &rack.Name, &rack.Description, &rack.State, &rack.DatacenterId); err != nil {
  			return errors.Annotate(err, "failed to scan rack").Err()
  		}
  		t.current = append(t.current, rack)
  	}
  	return nil
  }
docs: // fetch fetches the racks from the database.