// 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
}
// 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
}