Re: Diazo overhead?

I completely agree with Johannes. The trick to avoiding misery is being
versatile and fixing things in the right places. The ability to fix a view
or viewlet template via jbot can save a lot of tedious rulemaking in Diazo.

By the way, folks, those "css:..." selectors usually get translated to
"//..." XPath expressions.

On Thu, Nov 6, 2014 at 5:49 AM, Johannes Raggam <[email protected]> wrote:

> I've seen a theme completely built with large sets of XSLT rules in
> Diazo and no modifications in templates. Besides being unmaintainable
> (rules are bound to both the Diazo template markup and the content
> markup), was also was very slow. Probably there were a lot of "search
> anywhere in the document" xpath queries.
>
> I love Diazo, but you have to make find the threshold where to do
> modifications in page templates rather than in Diazo. My rule of thumb
> is to use page template modifications (custom views bound to a browser
> layer or overrides via jbot) for most of the templates/views which are
> rendered in one of the columns of Plone (main content column, portlet
> columns, footer). This way, my ruleset is always quite simple but
> designers are still able to play around.
>
> johannes
>
> On Thu, 2014-11-06 at 13:25 +0000, Martin Aspeli wrote:
> >
> >
> > On 6 November 2014 11:36, Daniel Jowett <[email protected]>
> > wrote:
> >         I think there was some mention at the conference of an
> >         overhead
> >         from using "*" in some Diazo rules.  Would anyone care to
> >         expand on that
> >
> >
> >
> > Using * or Xpath expressions beginning with // (sometimes/usually)
> > means "search anywhere in the document". So that can be slow because
> > it has to look everywhere. More precise expressions are faster because
> > you're giving the parser more information about where to look.
> >
> >
> > Martin
> >
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> python plone zope development
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