Hi Hugo,
I am open to replacements of $CURRENT_DATE(). We'd need to make sure,
however, that the new proposal of [% $now %] would also allow a way to
set the date format, e.g. german date, french date, english date or some
specific user defined format.
Is your proposed change in line with what other text replacements of
the new expression builder do, e.g. in the label placement?
Would the label in print composer gain a new GUI that would allow the
user to specify an expression?
How about backwards compatibility of $CURRENT_DATE() ? Although it
wasn't well documented, I taught a lot of people about using
$CURRENT_DATE() - would the old syntax still work with the new proposal?
It would be best if Marco H. could comment, since he implemented the
current label object in print composer.
Thanks,
Andreas
On Tue, 25 Sep 2012 11:01:05 +0200, Hugo Mercier wrote:
Hi all,
I am currently working on the integration of the Atlas plugin into
the core.
I noticed the "replaceDateText" method of the QgsComposerLabel class
that is aimed at dealing with the very specific "$CURRENT_DATE"
expression and replace it with ... the current date.
For the sake of homogeneity and considering we have a powerful way of
handling expressions, why not consider text in labels where
expressions are surrounded by '[%' and '%]'. So $CURRENT_DATE would
be
replaced by date manipulations based on '[% $now %]' ?
The other change I propose is to enhance the optional "substitution
map" that can be set on an expression text. It is used to define
special column names like $layerid, $CWD and so on when using Actions
on a layer. Until now, they are used for text replacement and cannot
be used within an expression.
My proposal is to make them first-class citizen within the grammar.
I have a local branch with these proposed changes. If there is no
special objections, I am about to propose them.
--
--
Andreas Neumann
Böschacherstrasse 10A
8624 Grüt (Gossau ZH)
Switzerland
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