We already thought of this solution. Our team agreed that this is not really the "PHPTAL"-way and we should use slots. But now, with your explanation of the technical issue regarding variable scope and the added explanation in the manual, it's fine :)
Thank you! -----Ursprüngliche Nachricht----- Von: phptal-boun...@lists.motion-twin.com [mailto:phptal-boun...@lists.motion-twin.com] Im Auftrag von Kornel Lesinski Gesendet: Freitag, 25. Juni 2010 12:07 An: Template Attribute Language for PHP Betreff: Re: [PHPTAL] Variables not found while filling slot On 24-06-2010 at 18:55:31 Per Bernhardt <p...@webfactory.de> wrote: > taken the following macro and macro-usage: > > <tal:block metal:define-macro="ul"> > <ul> > <li tal:repeat="item items"> > <tal:block metal:define-slot="li" /> > </li> > </ul> > </tal:block> > > <tal:block tal:define="items php:array('a', 'b', 'c')" > metal:use-macro="ul"> > <tal:block metal:fill-slot="li"> > ${item} > </tal:block> > </tal:block> > > I would expect the template to be rendered like this: > <ul> > <li>a</li> > <li>b</li> > <li>c</li> > </ul> > > But with the current stable and beta what you get is a > PHPTAL_VariableNotFoundException saying "Unable to find variable 'item' > in current scope. > More generally spoken: Variables defined within a macro definition > cannot be accessed while using the macro and filling one of its slots. > > Is this a bug, missing implementation or an unwanted feature? That's just how it works. Slots work by assigning generated HTML to a hidden variable. They're executed immediately when fill-slot is called. Technically the issue is which scope (variables) slot should "see": <div tal:define="x '1'" metal:fill-slot="slot">${x}</div> <div tal:define="x '2'" metal:define-slot="slot"><!-- 1 or 2? --></div> For slots the answer is 1. Analogous code with macro callbacks would give 2. I've added explanation to the manual: http://phptal.org/manual/en/split/metal-use-macro.html#macro-callback See also: http://www.mail-archive.com/phptal@lists.motion-twin.com/msg01331.html -- regards, Kornel _______________________________________________ PHPTAL mailing list PHPTAL@lists.motion-twin.com http://lists.motion-twin.com/mailman/listinfo/phptal _______________________________________________ PHPTAL mailing list PHPTAL@lists.motion-twin.com http://lists.motion-twin.com/mailman/listinfo/phptal
