FUNCTIONUnder review

FWUUIDV4

FWUUIDV4([lFormat]) -> cUUID

Generates a version 4 UUID.

FWUUIDV4AdvPL

01 · OVERVIEW

Overview

The official description identifies an algorithm based on random numbers. Its published example calls V1, apparently a copy error; this editorial example calls V4 as described by the function name and contract. The page does not establish a specific cryptographic guarantee for the installed implementation. (Sources: refs. 1–1.) The referenced community template calls FwUUIDv4() in a hidden field; this demonstrates a call rather than a security protection.

02 · SYNTAX

Syntax

FWUUIDV4([lFormat]) -> cUUID

Parameters

lFormat

LogicalOptional

Requests formatting.

Return value

Identifier string.

03 · PRACTICAL EXAMPLE

Commented example

#Include "Protheus.ch"

User Function Ed456()
    Local cId := FWUUIDV4(.T.)
    // Identifier, not an authentication credential.
    ConOut(cId)
Return Nil

Expected result

Displays an identifier; its value depends on implementation and context. Under review: editorial example neither compiled nor run in Protheus. Check includes, release, RDD and context before testing.

BEST PRACTICES

Enforce storage uniqueness and do not use UUIDs as passwords, authorization or secrets.
Under review: editorial example neither compiled nor run in Protheus. Check includes, release, RDD and context before testing.