func (attr Bytes) Encode(w *pgx.WriteBuf, oid pgx.Oid) error {
if oid != pgx.ByteaOid {
return pgx.SerializationError(fmt.Sprintf("Bytes.Encode cannot encode into OID %d", oid))
}
if attr.Status != Present {
w.WriteInt32(-1)
return nil
}
w.WriteBytes(attr.Value)
return nil
}
func (p *NullPoint) Scan(vr *pgx.ValueReader) error {
if vr.Type().DataTypeName != "point" {
return pgx.SerializationError(fmt.Sprintf("NullPoint.Scan cannot decode %s (OID %d)", vr.Type().DataTypeName, vr.Type().DataType))
}
if vr.Len() == -1 {
p.X, p.Y, p.Valid = 0, 0, false
return nil
}
switch vr.Type().FormatCode {
case pgx.TextFormatCode:
s := vr.ReadString(vr.Len())
match := pointRegexp.FindStringSubmatch(s)
if match == nil {
return pgx.SerializationError(fmt.Sprintf("Received invalid point: %v", s))
}
var err error
p.X, err = strconv.ParseFloat(match[1], 64)
if err != nil {
return pgx.SerializationError(fmt.Sprintf("Received invalid point: %v", s))
}
p.Y, err = strconv.ParseFloat(match[2], 64)
if err != nil {
return pgx.SerializationError(fmt.Sprintf("Received invalid point: %v", s))
}
case pgx.BinaryFormatCode:
return errors.New("binary format not implemented")
default:
return fmt.Errorf("unknown format %v", vr.Type().FormatCode)
}
p.Valid = true
return vr.Err()
}
func (attr *IPNet) Encode(w *pgx.WriteBuf, oid pgx.Oid) error {
if oid != pgx.InetOid && oid != pgx.CidrOid {
return pgx.SerializationError(fmt.Sprintf("IPNet.Encode cannot encode into OID %d", oid))
}
switch attr.Status {
case Present:
return pgx.Encode(w, oid, attr.Value)
case Null:
w.WriteInt32(-1)
return nil
case Undefined:
return errors.New("cannot encode undefined attr")
default:
panic("unreachable")
}
}
func (attr *Int64) Scan(vr *pgx.ValueReader) error {
if vr.Type().DataType != pgx.Int8Oid {
return pgx.SerializationError(fmt.Sprintf("Int64.Scan cannot decode OID %d", vr.Type().DataType))
}
if vr.Len() == -1 {
attr.Value = 0
attr.Status = Null
return nil
}
err := pgx.Decode(vr, &attr.Value)
if err != nil {
return err
}
attr.Status = Present
return vr.Err()
}
func (attr *IPNet) Scan(vr *pgx.ValueReader) error {
oid := vr.Type().DataType
if oid != pgx.InetOid && oid != pgx.CidrOid {
return pgx.SerializationError(fmt.Sprintf("IPNet.Scan cannot decode OID %d", vr.Type().DataType))
}
if vr.Len() == -1 {
attr.Value = net.IPNet{}
attr.Status = Null
return nil
}
attr.Status = Present
err := pgx.Decode(vr, &attr.Value)
if err != nil {
return err
}
return vr.Err()
}
func (attr *Time) Scan(vr *pgx.ValueReader) error {
oid := vr.Type().DataType
if oid != pgx.TimestampTzOid && oid != pgx.TimestampOid && oid != pgx.DateOid {
return pgx.SerializationError(fmt.Sprintf("Time.Scan cannot decode OID %d", vr.Type().DataType))
}
if vr.Len() == -1 {
attr.Value = time.Time{}
attr.Status = Null
return nil
}
err := pgx.Decode(vr, &attr.Value)
if err != nil {
return err
}
attr.Status = Present
return vr.Err()
}