On Wed, Jul 23, 2003 at 03:59:58PM +1000, Richard Jones wrote:

> Say a method listFilesByUser returns a list of (user, [files]) 
> it'd be nice to > be able to::
>    tal:repeat="user,files here/listFilesByUser"
> or similar. Currently we would have to use a python: expression to manually 
> unpack the tuple. Kinda yucky.
> Any comments?

hmm... so you want to extend the language so you can write:

  <span tal:repeat="user,files here/listFilesPerUser">
    <div tal:content="user"> 
      user goes here 
    <div tal:repeat="file files"
      file goes here 

I disagree... There's probably a million little things that
"would be nice" in ZPT. Rather than feature-creep TAL/TALES, which
are pretty simple currently, let's leave the heavy lifting to
our favorite tried-and-true general-purpose language.

In this case, consider a trivial change to (or wrapper around) 
listFilesByUser to make it return a sequence of dictionaries
like {'user': some_user, 'files': (file1, file2...)}
Then your zpt could look like:

  <span tal:repeat="fpu here/listFilesPerUser">
    <div tal:content="fpu/user"> 
      user goes here 
    <div tal:repeat="file fpu/files"
      file goes here 


Paul Winkler
Look! Up in the sky! It's TWINKLY-GIANT WOMAN!
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