fix sql/driver.Valuer interface usage

Author: 4el0ve4ek

CHANGELOG.md

@@ -1,3 +1,5 @@
+* Fix - returned support of sql/driver.Valuer interfaces for params which passed to query using sql driver 
+
 ## v3.94.0
 * Refactored golang types mapping into ydb types using `ydb.ParamsFromMap` and `database/sql` query arguments
 * Small breaking change: type mapping for `ydb.ParamsFromMap` and `database/sql` type `uuid.UUID` changed from ydb type `Text` to ydb type `UUID`

internal/bind/params.go

@@ -161,6 +161,17 @@ func toValue(v interface{}) (_ value.Value, err error) {
 		return x, nil
 	}
 
+	if valuer, ok := v.(driver.Valuer); ok {
+		v, err = valuer.Value()
+		if err != nil {
+			return nil, fmt.Errorf("ydb: driver.Valuer error: %w", err)
+		}
+	}
+
+	if x, ok := asUUID(v); ok {
+		return x, nil
+	}
+
 	switch x := v.(type) {
 	case nil:
 		return value.VoidValue(), nil
@@ -337,16 +348,17 @@ func supportNewTypeLink(x interface{}) string {
 }
 
 func toYdbParam(name string, value interface{}) (*params.Parameter, error) {
-	if na, ok := value.(driver.NamedValue); ok {
-		n, v := na.Name, na.Value
+	switch tv := value.(type) {
+	case driver.NamedValue:
+		n, v := tv.Name, tv.Value
 		if n != "" {
 			name = n
 		}
 		value = v
+	case *params.Parameter:
+		return tv, nil
 	}
-	if v, ok := value.(*params.Parameter); ok {
-		return v, nil
-	}
+
 	v, err := toValue(value)
 	if err != nil {
 		return nil, xerrors.WithStackTrace(err)

internal/bind/params_test.go

@@ -17,6 +17,14 @@ import (
 	"github.com/ydb-platform/ydb-go-sdk/v3/table"
 )
 
+type testValuer struct {
+	value driver.Value
+}
+
+func (v testValuer) Value() (driver.Value, error) {
+	return v.value, nil
+}
+
 func TestToValue(t *testing.T) {
 	for _, tt := range []struct {
 		name string
@@ -601,6 +609,24 @@ func TestToValue(t *testing.T) {
 			dst:  nil,
 			err:  value.ErrIssue1501BadUUID,
 		},
+		{
+			name: xtest.CurrentFileLine(),
+			src:  testValuer{value: "1234567890"},
+			dst:  value.TextValue("1234567890"),
+			err:  nil,
+		},
+		{
+			name: xtest.CurrentFileLine(),
+			src:  testValuer{value: uuid.UUID{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}},
+			dst:  value.Uuid(uuid.UUID{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}),
+			err:  nil,
+		},
+		{
+			name: xtest.CurrentFileLine(),
+			src:  testValuer{value: func() *string { return nil }()},
+			dst:  value.NullValue(types.Text),
+			err:  nil,
+		},
 	} {
 		t.Run(tt.name, func(t *testing.T) {
 			dst, err := toValue(tt.src)

tests/integration/database_sql_regression_test.go

@@ -6,6 +6,7 @@ package integration
 import (
 	"context"
 	"database/sql"
+	"database/sql/driver"
 	"errors"
 	"fmt"
 	"math/rand"
@@ -435,3 +436,11 @@ func TestUUIDSerializationDatabaseSQLIssue1501(t *testing.T) {
 		require.Equal(t, id.String(), res.String())
 	})
 }
+
+type testValuer struct {
+	value driver.Value
+}
+
+func (v *testValuer) Value() (driver.Value, error) {
+	return v.value, nil
+}