Import to pgx main repo in pgtype subdir

pgtype/zeronull/text.go

@@ -0,0 +1,90 @@
+package zeronull
+
+import (
+	"database/sql/driver"
+
+	"github.com/jackc/pgtype"
+)
+
+type Text string
+
+func (dst *Text) DecodeText(ci *pgtype.ConnInfo, src []byte) error {
+	var nullable pgtype.Text
+	err := nullable.DecodeText(ci, src)
+	if err != nil {
+		return err
+	}
+
+	if nullable.Valid {
+		*dst = Text(nullable.String)
+	} else {
+		*dst = Text("")
+	}
+
+	return nil
+}
+
+func (dst *Text) DecodeBinary(ci *pgtype.ConnInfo, src []byte) error {
+	var nullable pgtype.Text
+	err := nullable.DecodeBinary(ci, src)
+	if err != nil {
+		return err
+	}
+
+	if nullable.Valid {
+		*dst = Text(nullable.String)
+	} else {
+		*dst = Text("")
+	}
+
+	return nil
+}
+
+func (src Text) EncodeText(ci *pgtype.ConnInfo, buf []byte) ([]byte, error) {
+	if src == Text("") {
+		return nil, nil
+	}
+
+	nullable := pgtype.Text{
+		String: string(src),
+		Valid:  true,
+	}
+
+	return nullable.EncodeText(ci, buf)
+}
+
+func (src Text) EncodeBinary(ci *pgtype.ConnInfo, buf []byte) ([]byte, error) {
+	if src == Text("") {
+		return nil, nil
+	}
+
+	nullable := pgtype.Text{
+		String: string(src),
+		Valid:  true,
+	}
+
+	return nullable.EncodeBinary(ci, buf)
+}
+
+// Scan implements the database/sql Scanner interface.
+func (dst *Text) Scan(src interface{}) error {
+	if src == nil {
+		*dst = Text("")
+		return nil
+	}
+
+	var nullable pgtype.Text
+	err := nullable.Scan(src)
+	if err != nil {
+		return err
+	}
+
+	*dst = Text(nullable.String)
+
+	return nil
+}
+
+// Value implements the database/sql/driver Valuer interface.
+func (src Text) Value() (driver.Value, error) {
+	return pgtype.EncodeValueText(src)
+}