[Zope] template / context question

[Erik Myllymaki]

I have solved this by using macros instead of just trying to *include* 
the TAL snippit.

I wrapped the snippit in a tag like this:

<metal:block define-macro="lister" tal:omit-tag="">
</metal:block>

and called it on each tempalte that uses it liek this:

<metal:block 
use-macro="context/templates/widgets/template-lister/macros/lister">
</metal:block>



Erik Myllymaki wrote:
> I am trying to separate out small bits of HTML that are used on many 
> pages of a site.
> 
> In one case I use a secondary navigation on some pages in the right 
> column that is supposed to look in the containing folder's sub-folders 
> and list the Page Templates that is finds there.
> 
> I create a folder called /templates/widgets and within there I have a 
> Page Template called template-lister.
> 
> <h2><strong>Quick Links</strong></h2>
> <ul tal:define="ztu modules/ZTUtils;
> raw python:context.objectValues('Folder');
> location_folder_list python:ztu.LazyFilter(raw, skip='View')">
> 
>     <li tal:repeat="location_folder location_folder_list">
>     <a href="" tal:attributes="href location_folder/absolute_url"
>        tal:content="location_folder/title">Location Title</a>
> 
>         <span tal:define="raw 
> python:location_folder.objectValues('Folder');
>                                           office_folder_list 
> python:ztu.LazyFilter(raw, skip='View')">
>         <span tal:repeat="office_folder office_folder_list">
>              <span tal:content="office_folder/title" >title</span>
> 
>              <ul tal:define="raw python:office_folder.objectValues('Page 
> Template');
>                                     posting_list 
> python:ztu.LazyFilter(raw, skip='View')">
>                <li tal:repeat="posting posting_list"
>                         tal:condition="posting_list">
>                    <a href="" tal:attributes="href posting/absolute_url"
>                          tal:content="posting/title">Posting Title</a>
>                </li>
>                <li    tal:condition="not: posting_list">
>                   No Postings at this time
>                </li>
>             </ul>
>         </span>
>         </span>
>     </li>
> </ul>
> 
> 
> If I put this code directly in each Page Template that uses it, it works 
> fine, but when removed from each Page Template and called like so:
> 
> <span tal:content="structure context/templates/widgets/template-lister" 
> tal:omit-tag="" />
> 
> it uses the context of the "/templates/widgets" folder and does not work.
> 
> Because this bit of TAL is used on many pages and the style of it 
> changes often, I really want to pull it out into one place for easy 
> updating.
> 
> I know I am missing something elemental here ...
> 
> Thanks for any advice.
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