public string GetConnectionStringOrNull( string connectionStringName, bool fallbackToDatabaseMappings = true, bool fallbackToDefault = true) { var connectionString = ConnectionStrings.GetOrDefault(connectionStringName); if (!connectionString.IsNullOrEmpty()) { return(connectionString); } if (fallbackToDatabaseMappings) { var database = Databases.GetMappedDatabaseOrNull(connectionStringName); if (database != null) { connectionString = ConnectionStrings.GetOrDefault(database.DatabaseName); if (!connectionString.IsNullOrEmpty()) { return(connectionString); } } } if (fallbackToDefault) { connectionString = ConnectionStrings.Default; if (!connectionString.IsNullOrWhiteSpace()) { return(connectionString); } } return(null); }