Hi,
Question 1: the output preview of the label does not seem to work
when I use a field - is there something I need to >>do to enable it?
I
would expect it to pull in the first record or some random record to
retrieve values?
Ah yes there seems to be a bug with grabbing the first record with
some data sources. I get the top feature using layer.featureAt(0)
but for some reason not all providers return a record at this index.
Writing a patch now.
My data source is Postgis in this case.
Question 2: how does it handle empty fields (null values)? would
string concatenation still work or do we need to >>coalesce() like in
PostreSQL?
Yeah null values when used with || are just converted to empty
strings.
good
Remark:
wouldn't it be cleverer to use your great new query builder and
introduce the concept of a "virtual column" in the >>data provider?
That would be a cool idea and something I have thought about, just
don't have the skills or time at present. I plan to redo the field
calculator to use my new expression builder widget at some stage so
we
can look at the virtual column thing then.
well this was more a general question to all of the developers - not
that I ask that from you personally.
Thanks again - it is really cool!
Andreas
--
Andreas Neumann
Böschacherstrasse 10A
8624 Grüt (Gossau ZH)
Switzerland
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