[Zope] Re: Rendering DTML from string

[Samir Mishra]

That's exactly what I have, DTML code in a text file. It's been generated by
python and contains "<dtml-XXX ???>" tags. I want read and execute the text
file in Zope. The reason the above file resides on the local file system
rather than within Zope is a design choice. I felt it would make life easier
for us in certain respects. I may have been wrong.

When I use -
<dtml-let routine="_.getattr(LFSfiles, 'testfile.txt')">
<dtml-var "_[routine]">
</dtml-let>

I get the following error -

Exception Type  	TypeError
Exception Value 	expected string or Unicode object,
ImplicitAcquirerWrapper found

Traceback (innermost last):

    * Module ZPublisher.Publish, line 100, in publish
    * Module ZPublisher.mapply, line 88, in mapply
    * Module ZPublisher.Publish, line 40, in call_object
    * Module OFS.DTMLMethod, line 130, in __call__
      <DTMLMethod instance at 0230FE90>
      URL: http://localhost:8080/testing/basetest/manage_main
      Physical Path:/apacheVirtualHost/testing/basetest
    * Module DocumentTemplate.DT_String, line 474, in __call__
    * Module DocumentTemplate.DT_Let, line 76, in render
    * Module DocumentTemplate.DT_Util, line 201, in eval
      __traceback_info__: _
    * Module <string>, line 1, in <expression>
    * Module AccessControl.ZopeGuards, line 67, in guarded_getitem

TypeError: expected string or Unicode object, ImplicitAcquirerWrapper found


testfile.txt is -
<p><strong>DTML code</strong></p>
<p><dtml-var expr="1+2+3"></p>


Thanks again.

Samir.




-----Original Message-----
From: Small Business Services [mailto:toolkit at magma.ca]
Sent: Saturday, April 03, 2004 18:22
To: zope at zope.org; DaMann
Subject: Re: [Zope] Re: Rendering DTML from string



From: "DaMann" <hammerhead at linuxmail.org>
> Doesn't work <dtml-var "_[someDTMLstrObj]">. I get the raw dtml in page
> source. Which doesn't display in the browser because browser doesn't
> understand DTML tags.

I am not familiar with the object you have stored in local file storage, but
if you have the name of a dtml method stored in a variable (ie. variable
routine contains 'x', where 'x' is the name of a dtml method) then you can
execute that method via:

<dtml-var "_[routine]">


If you have a text file containg dtml code and you want to execute that
code, the only thing i can think of is to place that code into a dtml method
and then execute the method, as follows:

<dtml-call "REQUEST.set('routine', 'tst')">
<dtml-call "REQUEST.set('dtmlcode', '<dtml-var
standard_html_header><dtml-var REQUEST><dtml-var standard_html_footer>')">

<dtml-comment> create the new method </dtml-comment>
<dtml-call "manage_addDTMLMethod(routine, 'atitle')">

<dtml-comment> now put some content into the new dtml method </dtml-comment>
<dtml-call "_.getitem(routine).manage_edit(dtmlcode, 'anewtitle2')">

<dtml-comment> now execute the new method </dtml-comment>
<dtml-var "_[routine]">


To make this work with a text file containing dtml code, just replace the
REQUEST.set('dtmlcode'...  with the code to read your text file and store
the contents in 'dtmlcode'.


HTH

Jonathan


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