WRDEntity2017::GetField (open)

Get a single field

Syntax

LOADLIB "mod::wrd/lib/internal/wrdentity.whlib";

VARIANT FUNCTION GetField(STRING field, RECORD options)

Parameters

STRING field

Tag of field to grab

RECORD options

Options

INTEGER cachettl

If set, use the adhoccache to cache the results for this number of milliseconds. The cache is invalidated when changes to this type are committed. Do not use within a same transaction that also modifies this WRD type.

STRING historymode

History mode. By default, all entities (even temporaries) are visible

DATETIME when

For history mode 'at', date when entities must be valid to be returned

DATETIME when_limit

For history mode 'range', limit of the range where entities must have been valid in to be returned

DATETIME when_start

For history mode 'range', start of the range where entities must have been valid in to be returned

Return value

VARIANT

Contents of the requested field