At 08:54 AM 6/7/2002 +0200, Robert Rottermann wrote:
Somehow I do not believe
you.
In your case it aoumts to about the same code.
Mabe I do not understand your problem really.
Why donty you send me a dtml-code snippet where your problem is saved
the
dtml-way.
OK. Here's the pure-DTML approach:
<table>
<tr>
<th>Title</th><th>Summary</th>
</tr>
<dtml-in objectValues>
<tr>
<td><dtml-var title></td>
<td><dtml-var Summary></td>
</tr>
</dtml-in>
</table>
Now here's the DTML approach where I'm using a Python script to
retrieve the records and then feeding them to the page:
<table>
<tr>
<th>Title</th><th>Summary</th>
</tr>
<dtml-in expr="ListAllArticles()">
<tr>
<td><a href="<dtml-var
absolute_url>"><dtml-var title></a>
</td>
<td><dtml-var Summary></td>
</tr>
</dtml-in>
</table>
Note that I added the URL stuff here, but including it in the
earlier example would also be trivial.
What I ended up with in TAL is pretty clean as well. It is simply that
while absolute_url is a dtml-var that gets picked up without any extra
effort on my part, when I go to TAL and want to use a Python script, as I
understand it, I have to stuff the results into a Python list or
dictionary to make them work with TAL. So I "lose contact" with
the object, as it were, which means I have to grab any information I want
about the object *before* I pass to the TAL processing.
My comment about it being more obtuse was based not on what I eventually
got working but on the code snippets you were sending, which I had a hard
time following, probably because of my relative inexperience.
Robert
----- Original Message -----
From: "Dan Shafer" <pydan@danshafer.com>
To: "Robert Rottermann" <robert@redcor.ch>
Cc: <zope@zope.org>
Sent: Friday, June 07, 2002 8:44 AM
Subject: Re: [Zope] Embedding absolute_url in TAL Syntax
> Thanks, Robert. I'll study these snippets and see if I can make
the
> technique work.
>
> Boy, it sure seems that this ZPT/TAL stuff, far from simplifying
the
> perceived complexity of DTML, is making things *much* more difficult
and
> obtuse. The same code using DTML is quite straight-forward.
>
> At 07:35 AM 6/7/2002 +0200, Robert Rottermann wrote:
> >That probably means, that your item does not have an
absolute_url method.
> > >From the name of ListAllArticlesDict I assume it is a
dictonary. Then
of
> >course the items do not have an absolute_url.
> >Hovever you could get at the "real" object and then
use its absolute_url
> >like so:
> >
> ><a tal:define="obj python:getattr(here,
item['id'])"
> > tal:attributes="href
obj/absolute_url"
> >
tal:content="item/title">
> ></a>
> >I assume your dictionary has an entry 'id' with the objects
id.
> >
> >Here is a codesnippet I copied verbatim from one of my scripts
that uses
> >absolute_url:
> ><span tal:define="vlist request/vlist | options/vlist |
python:[''] *
> >here.getNoOfArtikels()"
> > tal:omit-tag=""
> > tal:repeat="artikel
python:here.objectValues('Photo')">
> > <tr>
> > <td
width="100" rowspan="2"
valign="top">
>
>
<img alt="bild" style="margin-right:10"
>
>
tal:condition="python:artikel.size() > 0"
>
>
tal:attributes="src python:'%s?display=thumbnail' %
> >artikel.absolute_url()">
> >
</td>
> >Robert
> >----- Original Message -----
> >From: "Dan Shafer" <pydan@danshafer.com>
> >To: "Robert Rottermann" <robert@redcor.ch>
> >Cc: "Dan Shafer" <pydan@danshafer.com>;
<zope@zope.org>
> >Sent: Friday, June 07, 2002 2:34 AM
> >Subject: Re: [Zope] Embedding absolute_url in TAL Syntax
> >
> >
> > > Thanks, Robert. But that produces a runtime Zope
error:
> > >
> > > Error Type: Undefined
> > > Error Value: "absolute_url" not found in
"item/absolute_url"
> > >
> > > For completeness, here's the entire relevant
snippet:
> > >
> > >
<tbody tal:repeat="item here/ListAllArticlesDict">
> > >
<tr>
> >
>
<td>
> >
>
<a tal:attributes="href item/absolute_url"
> >
>
tal:content="item/title"></a></td>
> >
>
<td tal:content="item/Summary">Summary</td>
> > >
</tr>
> > >
</tbody>
> > >
> > > We know that the first line produces the items because if
I don't try
to
> >do
> > > the URL, the table displays as expected.
> > >
> > > At 11:45 PM 6/6/2002 +0200, Robert Rottermann wrote:
> > > >In this case you must use tal:attributes
> > > ><a tal:attributes="href
item/absolute_url"
tal:content="item/title"></a>
> > > >Robert
> > > >----- Original Message -----
> > > >From: "Dan Shafer"
<pydan@danshafer.com>
> > > >To: <zope@zope.org>
> > > >Sent: Thursday, June 06, 2002 9:48 PM
> > > >Subject: [Zope] Embedding absolute_url in TAL
Syntax
> > > >
> > > >
> > > > > OK, now that I have my table of objects produced
by a Python
script
> > > >working
> > > > > in ZPT, I need to figure out how to connect an
entry in the table
to
> >its
> > > > > URL. What is the TAL equivalent of:
> > > > >
> > > > > <td><a href="<dtml-var
absolute_url>"><dtml-var
title></a></td>
> > > > >
> > > > > It *seemed* like I should be able to code:
> > > > >
> > > > > <td><a
> > > > >
>
>href="tal:content='item/absolute_url'"><tal:content="item/title"></a></td>
> > > > >
> > > > > But that creates a compilation error in the TAL
HTML Parser. Maybe
> >it's a
> > > > > quoting thing (which I had sort of hoped would
be cleaner in ZPT
than
> >it
> > > >is
> > > > > with DTML stuff) but I can't find anything in
the docs about using
> > > > > absolute_url in TAL, so I'm kinda stuck.
> > > > >
> > > > >
> > > > >
> > > > >
_______________________________________________
> > > > > Zope maillist - Zope@zope.org
> > > > >
http://lists.zope.org/mailman/listinfo/zope
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encoding! **
> > > > > (Related lists -
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> > > > >
> > >
> > >
>
> Dan Shafer, Chief Scribe and Tablet Keeper
> PythonCard Open Source Project
> http://pythoncard.sourceforge.net
>
>
Dan Shafer, Chief Scribe and Tablet Keeper
PythonCard Open Source Project
http://pythoncard.sourceforge.net