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GetTransportFID

Function GetTransportFID( const aName : string) : TGuid

Example​

procedure ScriptEvent(var Value: variant);
var
  ModuleFID: TGuid;
begin
  ModuleFID := GetTransportFID('Partner SFTP Out');
  Value := GUIDToStringNoBraces(ModuleFID);
end;

Usage​

GetTransportFID resolves a transport module name to its live Velox system-configuration FID.

Parameters and result

ItemTypeDescription
aNamestring, constTransport MODULENAME to find. The shared SQL literal helper removes embedded NUL characters and doubles apostrophes.
ResultTGuidMatching FID, or all-zero EmptyGuid if the query returns no row.

Behaviour and edge cases

  • Case sensitivity, character comparison, trailing-space behavior and collation come from the configuration database.
  • SQLString removes embedded #0 before quoting, so a name containing NULs is normalized and the conversion is lossy.
  • There is no order by or uniqueness check. Duplicate matching names produce a database-dependent first row.
  • Missing data and a stored all-zero FID have the same result. Test IsEmptyGuid.
  • The result reflects live connection/transaction state; rename, deletion or replacement can affect later calls.
  • Resolving an FID does not prove that the module is enabled, authorized, valid for a later operation or suitable for the caller's purpose.

Additional Technical Info​

GetTransportFID looks up the Transport whose MODULENAME equals aName and returns its binary TGuid FID. It reads the current Velox system/configuration database; it is not a compile-time constant or cached name map.

The example name is fictional and source-reviewed only. The documentation workflow did not execute the lookup.

Implementation

The scripting import binds directly to the Velox FID helper. This wrapper calls GetFID with fixed table VX_TRANSPORT. The shared implementation allocates a query from the live system connection, executes select FID from VX_TRANSPORT where MODULENAME = <escaped aName>, reads the first row or uses EmptyGuid, and frees the query in a finally block.

The fixed table removes the generic function's caller-controlled table-identifier boundary.

Side effects and errors

The query is read-only but allocates a database resource and uses the shared system connection. Connection, schema, permission, SQL execution and GUID-conversion failures propagate. Only a successful no-row query becomes EmptyGuid.

Performance and concurrency

Every call creates and executes a query; there is no per-name cache. Resolve stable names outside record-level loops and reuse the TGuid. Cleanup is deterministic, while pooling, isolation, locking and concurrent configuration changes follow the shared connection/database.

Related entries

Created 2026-07-15