示例#1
0
// Query implements Query, inverting keys on the way back out.
func (d *datastore) Query(q dsq.Query) (dsq.Results, error) {
	qr, err := d.raw.Query(q)
	if err != nil {
		return nil, err
	}

	ch := make(chan dsq.Result)
	go func() {
		defer close(ch)
		defer qr.Close()

		for r := range qr.Next() {
			if r.Error != nil {
				ch <- r
				continue
			}

			k := ds.NewKey(r.Entry.Key)
			if !d.prefix.IsAncestorOf(k) {
				continue
			}

			r.Entry.Key = d.Datastore.InvertKey(k).String()
			ch <- r
		}
	}()

	return dsq.DerivedResults(qr, ch), nil
}
示例#2
0
// Query implements Query, inverting keys on the way back out.
func (d *ktds) Query(q dsq.Query) (dsq.Results, error) {
	qr, err := d.child.Query(q)
	if err != nil {
		return nil, err
	}

	ch := make(chan dsq.Result)
	go func() {
		defer close(ch)
		defer qr.Close()

		for r := range qr.Next() {
			if r.Error == nil {
				r.Entry.Key = d.InvertKey(ds.NewKey(r.Entry.Key)).String()
			}
			ch <- r
		}
	}()

	return dsq.DerivedResults(qr, ch), nil
}