[Zope-DB] Easier updates with <dtml-sqlgroup set> and <dtml-comma>?

[Dieter Maurer]

Jeff Kowalczyk writes:
 > Is there any way to do this sort of thing more directly using DTML?
 > Something like this (wishful) would be nice:
 > 
 > update Shipments
 > <dtml-sqlgroup set>
 > <dtml-sqltest ShipperInvoiceID type=nb optional><dtml-comma>
 > <dtml-sqltest ShipperChargeAsBilled type=float optional><dtml-comma>
 > <dtml-sqltest ShipperChargeAsPaid type=float optional>
 > </dtml-sqlgroup>
 > where ShipmentID = <dtml-sqlvar ShipmentID type=nb>
Someone extended "dtml-sqlgroup" to support this use case.
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Dieter