[Zope] Re: including a ZPT inside a repeat loop

[Tres Seaver]

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Matthew White wrote:
> oops!  I thought I'd clean up my code snippet to make it a little more
> readable, and instead introduced an error.  Here it is in full:
> 
> 	<tal:loop repeat="t python:test(exists('/request/form/view_all'),
> 					container.py.new_get_queue(whence=q),
> 					container.py.new_get_queue(whence=q, userid=userid))">
> 									
> 		<span tal:replace="structure here/queue_template">
> 			Queue Template Goes Here
> 		</span>

Names defined in one template are only available within that template,
or within macros it inlines.  Your case *calls* the second template, and
so would need to pass 't' along explicitly, e.g.:
									
    <span tal:replace="structure python:here.queue_template(t=t)" />

In that case, the 'queue_template' script would use 'options/t' to get
to the passed value, e.g::

   <div>
    <h1 tal:content="options/t">T</h1>
   </div>

An alternative spelling would be to add a 'metal:define-macro="qt"'
attribute to your 'queue_template', and then include it as a macro, e.g.:

   <!-- In 'queue_template';  expects to find the name 't' bound
        in the TAL namespace.
     -->
   <div metal:define-macro="qt">
    <h1 tal:content="t">T</h1>
   </div>

and::

  <span metal:use-macro="here/queue_template/macros/qt" />



Tres.
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Tres Seaver          +1 202-558-7113          tseaver at palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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