feat: site languages, setup and site URL settings

internal/infrastructure/persistence/database/postgres.go

@@ -2,6 +2,7 @@ package database
 
 import (
 	domainUpdate "RenewCMS/internal/domain/update"
+	"errors"
 	"fmt"
 	"net"
 	"net/url"
@@ -21,6 +22,7 @@ const (
 	postgresScheme                = "postgres"
 	postgresUTCCallback           = "renewcms:postgres_utc"
 	gormQueryCallback             = "gorm:query"
+	postgresLockNotAvailable      = "55P03"
 )
 
 var timeType = reflect.TypeOf(time.Time{})
@@ -106,3 +108,8 @@ func convertStructTimesToUTC(value reflect.Value) {
 func (postgresDriver) NewBackup(db *gorm.DB, directory string, now func() time.Time) domainUpdate.DatabaseBackup {
 	return NewPostgresBackup(db, directory, now)
 }
+
+func (postgresDriver) IsLockContention(err error) bool {
+	var failure *pgconn.PgError
+	return errors.As(err, &failure) && failure.Code == postgresLockNotAvailable
+}