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[GNUe] GNUe-Forms: computing totals
From: |
Adrian Maier |
Subject: |
[GNUe] GNUe-Forms: computing totals |
Date: |
Tue, 1 Feb 2005 12:58:54 +0200 |
User-agent: |
Mutt/1.5.5.1i |
Hello everyone,
I'm trying to build a form that contains a block (grid-mode)
and additionally a field that contains the total corresponding
to one of the block's fields.
The total_field would be recalculated after committing (inside
a POST-COMMIT trigger).
I have read the chapter on datasources in the "gnue-common
developer's guide", but it is unclear to me whether i should use
the DataSourceWrapper class is what i need or not.
In fact, my question is :
How do I execute (inside a gnue-forms trigger) an arbitrary SQL
command like "select sum(coalesce(SOME_COLUMN,0)) from SOME_TABLE"
and how do i gather the returning values ?
Thanks in advance for any tip!
Adrian Maier
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