[Zope] Increment In PT?

[Peter Bengtsson]

You should now have all the parts.
Instead of iterating over python:range(1000) do it on bitem_ids instead.

You don't have to use a <br /> tag. You can use
<input tal:attributes="value iter/number" />
if you want.
You increment it by calling tal:iter/next whichever way you do it.

tonylabarbara at aol.com wrote:
> I would think this should be pretty easy in the PT itself, given what 
> you've shared so far. But I'm still not quite there. Here's what I've got:
>  
>       <span tal:repeat="bitem_id bitem_ids" tal:omit-tag="">
>        <div tal:define="iter 
> python:modules['ZTUtils'].Iterator(range(1000))">
>         <br tal:define="x iter/next" tal:replace="iter/number" />
> 
> Now, I don't really want that <br /> tag there, because it's printing a 
> number to screen that I don't want there. However, it only prints the 
> number "1" twice, once for each product, when it should print 1 then 2, 
> I would think. (I presume I should just take the tal:replace out and 
> leave the definition, but it's still not incrementing!) Later in the 
> script I have this:
> 
>                 <input type="hidden" tal:attributes="value item/name; 
> name python:'item_name_' + `x`">
>                 <input type="hidden" tal:attributes="value item/id; name 
> python:'item_number_' + `x`">
> 
> and other similar lines. What I'm trying to effectuate is that the "x" 
> gets replaced with an incremented number. Can you help just a little more?
> TIA,
> Tony
> 
> -----Original Message-----
> From: Peter Bengtsson <peter at fry-it.com>
> To: tonylabarbara at aol.com
> Cc: zope at zope.org
> Sent: Mon, 30 Jul 2007 1:32 pm
> Subject: Re: [Zope] Increment In PT?
> 
> You can use the ZTUtils Iterator() 
>  
> <div tal:define="iter python:modules['ZTUtils'].Iterator(range(1000))"> 
>   <br tal:define="dummy iter/next" tal:replace="iter/number" /> 
>   <br tal:define="dummy iter/next" tal:replace="iter/number" /> 
>   <br tal:define="dummy iter/next" tal:replace="iter/number" /> 
> </div> 
>  
> Which might give you some freedom such as iter/Roman or iter/odd 
> The above is practically the same as: 
>  
>   <br tal:repeat="i python:range(3)" tal:replace="i" /> 
>  
> Generally, if you can, use a Python Script or something. The Iterator 
> is/was used in Plone templates to increment the tab index. 
>  
> tonylabarbara at aol.com <mailto:tonylabarbara at aol.com> wrote: 
>  > Hi; 
>  > I´m trying to increment a variable in a page template. Here´s the > 
> general idea in my code: 
>  > > <div metal:define-macro="main" tal:define="x python:0"> 
>  > > <tal:block tal:define="x python:x + 1"> 
>  > <td> 
>  > <input type="hidden" tal:attributes="value item/name; name > 
> python:'item_name_' + `x`"> 
>  > > > Now, all of that works...once. That is, it increments from 0 to 
> 1, but > not from 1 to 2! Each time I pass through the td element, I 
> need it to > increment. I tried putting the tal definition in the td, 
> but then it > didn´t even increment once! What do? 
>  > TIA, 
>  > Tony 
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