Assigning multiple classes to a tag using PHPTAL

Question

I have an array of data I want to output as a UL using PHPTAL (easy) with class attributes supplied by the array (easy), a class attribute for first and for the last element (easy)... all at the same time (hard).

Ie. I want to combine:

<ul tal:repeat="item items">
    <li class="${item/class}">${item/text}</li>
</ul>

with this

<ul tal:repeat="item items">
    <li tal:attributes="class repeat/item/first 'first'">${item/text}</li>
</ul>

and this

<ul tal:repeat="item items">
    <li tal:attributes="class repeat/item/last 'last'">${item/text}</li>
</ul>

This is purely presentational stuff, so I'd rather do it purely in PHPTAL. Is this possible? How?

Answer 1

No, there's no pure TALES for this.

<li tal:attributes="class php:repeat.item.last ? 'last' 
                          : (repeat.item.first ? 'first' : NULL)">

Answer 2

This is a pretty old thread, but because no one mentioned it: an 'cleaner' way is probably through a custom modifier. (http://phptal.org/manual/en/split/custom-modifiers.html). Then you could have:

<li tal:attributes="class css-ordinal:repeat.item">

and as a benefit, you could reuse that in other elements, as it seems a pretty general idiom.