예제 #1
0
파일: serialize.go 프로젝트: martiniss/gae
// WriteProperty writes a Property to the buffer. `context` behaves the same
// way that it does for WriteKey, but only has an effect if `p` contains a
// Key as its Value.
func WriteProperty(buf Buffer, context KeyContext, p ds.Property) (err error) {
	defer recoverTo(&err)
	typb := byte(p.Type())
	if p.IndexSetting() != ds.NoIndex {
		typb |= 0x80
	}
	panicIf(buf.WriteByte(typb))
	switch p.Type() {
	case ds.PTNull:
	case ds.PTBool:
		b := p.Value().(bool)
		if b {
			err = buf.WriteByte(1)
		} else {
			err = buf.WriteByte(0)
		}
	case ds.PTInt:
		_, err = cmpbin.WriteInt(buf, p.Value().(int64))
	case ds.PTFloat:
		_, err = cmpbin.WriteFloat64(buf, p.Value().(float64))
	case ds.PTString:
		_, err = cmpbin.WriteString(buf, p.Value().(string))
	case ds.PTBytes:
		_, err = cmpbin.WriteBytes(buf, p.Value().([]byte))
	case ds.PTTime:
		err = WriteTime(buf, p.Value().(time.Time))
	case ds.PTGeoPoint:
		err = WriteGeoPoint(buf, p.Value().(ds.GeoPoint))
	case ds.PTKey:
		err = WriteKey(buf, context, p.Value().(ds.Key))
	case ds.PTBlobKey:
		_, err = cmpbin.WriteString(buf, string(p.Value().(blobstore.Key)))
	}
	return
}
예제 #2
0
파일: serialize.go 프로젝트: nishanths/gae
// writePropertyImpl is an implementation of WriteProperty and
// WriteIndexProperty.
func writePropertyImpl(buf Buffer, context KeyContext, p *ds.Property, index bool) (err error) {
	defer recoverTo(&err)

	it, v := p.IndexTypeAndValue()
	if !index {
		it = p.Type()
	}
	typb := byte(it)
	if p.IndexSetting() != ds.NoIndex {
		typb |= 0x80
	}
	panicIf(buf.WriteByte(typb))

	err = writeIndexValue(buf, context, v)
	return
}
예제 #3
0
func dsF2RProp(ctx context.Context, in ds.Property) (datastore.Property, error) {
	err := error(nil)
	ret := datastore.Property{
		NoIndex: in.IndexSetting() == ds.NoIndex,
	}
	switch in.Type() {
	case ds.PTBytes:
		v := in.Value().([]byte)
		if in.IndexSetting() == ds.ShouldIndex {
			ret.Value = datastore.ByteString(v)
		} else {
			ret.Value = v
		}
	case ds.PTKey:
		ret.Value, err = dsF2R(ctx, in.Value().(*ds.Key))
	case ds.PTBlobKey:
		ret.Value = appengine.BlobKey(in.Value().(bs.Key))
	case ds.PTGeoPoint:
		ret.Value = appengine.GeoPoint(in.Value().(ds.GeoPoint))
	default:
		ret.Value = in.Value()
	}
	return ret, err
}