package postgres import ( "fmt" ) const ( BeginTransactionFailedMsg = "failed to begin transaction" DbConnectionFailedMsg = "db connection failed" DeleteQueryFailedMsg = "delete query failed" InsertQueryFailedMsg = "insert query failed" SettingNodeFailedMsg = "unable to set db node" ) func ErrBeginTransactionFailed(beginErr error) error { return formatError(BeginTransactionFailedMsg, beginErr.Error()) } func ErrDBConnectionFailed(connectErr error) error { return formatError(DbConnectionFailedMsg, connectErr.Error()) } func ErrDBDeleteFailed(deleteErr error) error { return formatError(DeleteQueryFailedMsg, deleteErr.Error()) } func ErrDBInsertFailed(insertErr error) error { return formatError(InsertQueryFailedMsg, insertErr.Error()) } func ErrUnableToSetNode(setErr error) error { return formatError(SettingNodeFailedMsg, setErr.Error()) } func formatError(msg, err string) error { return fmt.Errorf("%s: %s", msg, err) }