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Re: [ic] improving awkward IF syntax
On Thu, Dec 20, 2001 at 12:33:31PM -0800, Bob Ramstad wrote:
> Second question.
>
> (Again, I'm a digester, so if you send a response to the list and to
> me directly, I'll be able to get this fixed faster. Thanks in advance
> for CCing me directly. Yow.)
>
> One of my goals is to make it so that all the content lives in the
> database and is being served from flypage.html. That's the way we've
> got it architected on another system, and we'd like to keep it that
> way.
>
> I've added products::type and products::orderable as columns to the
> products database. type can be PAGE, ITEM or NIL. orderable can be
> YES or NO. Using combinations of these settings, I can determine
> exactly how to display the page.
You might be able to skip a lot of the logic if you use
PageSelectField. Have you looked at that?
It's next to impossible for someone to guess what is going
to be easier for someone else. :-) YMMV.
>
> This setup has been working fairly well, but one thing that is
> bothering me is that I have to use some rather awkward constructions
> in flypage.html for testing these values, like this:
>
> [if explicit][condition]return [item-field type] eq 'ITEM';[/condition]
> <<code>>
> [/if]
>
> For whatever reason, all the more obvious bits of simpler syntax do
> not work. I end up in the ELSE clause when I'm not supposed to, or
> the code is skipped over... indicating that the test didn't match.
>
> I've tried a variety of constructions, with and without quoting the
> argument, e.g.
>
> [if-item-field type eq 'ITEM']
>
> doesn't work.
>
> I'm concerned that this convoluted syntax may lead to performance
> issues down the road. So, a couple of (obvious) questions:
>
> 1) Is there a better and simpler ITL syntax which will work?
>
> 2) If not, is there a simplification or modification of my database
> structure which will allow better and simpler ITL syntax?
>
> 3) Finally, I see references in the documentation to the fact that IF
> is slow, and complicated tests should be done in Perl for
> performance reasons. Can someone give me an example of how to do
> the test above in Perl?
>
> Thanks in advance for your help!
>
> -- Bob
>
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--
Christopher F. Miller, Publisher cfm@maine.com
MaineStreet Communications, Inc 208 Portland Road, Gray, ME 04039
1.207.657.5078 http://www.maine.com/
Content/site management, online commerce, internet integration, Debian linux
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