Re: [Zope] DTML meth makes Zope 2.4.0 core dump...

3 Aug 2001

      Pierre,

I had to modify your scripts to make logical sense ( or logical sense to
me anyway):

1.  I had to give py_sample_script two argument slots (as it acts as a
CONVERTER).
2.  I had to replace RESULT with (1,2,3) in dtml_mytest.

After doing this I was able to get the test to run by viewing
dtml_mytest.

It does not coredump for me and outputs:

Object Title Object Year 
OK OK 
OK OK 
OK OK 

Can you send me a .zexp of your coredumping setup and tell me what to
view in case I'm not replicating your setup correctly?

Pierre-Julien Grizel wrote:
...
Ok, here they are :
py_sample_script: (without ANY binding)
  return "OK"
dtml_mytest: (DTML Method)
 [...several dtml-in or dtml-with...]
      <dtml-var "html_results_list(
        RESULT,
        meth_search_fields(),
        py_sample_script)">
 [...]
meth_search_fields: (Py script)
  return [
    ('Title', 'Object Title'),
    ('Year', 'Object Year'),
  ]
html_results_list: (Py script, taking "results, fileds, converter" parameters)
  [...miscelaneous treatments without side effect for our purpose - I eventually
removed them to test...]
  return container.html_results_list_build(None, context, RESULTS=results,
FIELDS=fields, CONVERTER=converter)
html_results_list_build: (DTML Method)
<table>
<tr>
  <dtml-in FIELDS>
    <th><dtml-var sequence-item></th>
  </dtml-in>
  </tr>
<dtml-in RESULTS>
    <dtml-let RESULT=sequence-item>
      <tr>
        <dtml-in FIELDS>
          <td><dtml-var "CONVERTER('', '')"></td>
        </dtml-in>
      </tr>
    </dtml-let>
  </dtml-in>
</table>
What is funny as well is that if I remove the <dtml-let> statement in the last
method, it works. If I replace it with a <dtml-call REQUEST.set>, it DOESN'T
work. But the fact is I really need the RESULTS sequence-item within the second
loop...
Thanks for your help,
P.-J.
Chris McDonough wrote:
...
Pierre,
Please send the CONVERTER PythonScript and whatever FIELDS and RESULTS
are.  This bug report is not reproducible without them.
Pierre-Julien Grizel wrote:
...
(BTW I forget in my previous post to precise I use 2.4.0 on FreeBSD).
Here is a DTML Method :
<dtml-in RESULTS>
    <dtml-let RESULT=sequence-item>
      <tr><dtml-var "CONVERTER('','')">
        <dtml-in FIELDS>
          <td><dtml-var "CONVERTER('', '')"></td>
        </dtml-in>
      </tr>
    </dtml-let>
  </dtml-in>
This method is called from a Python Script, and CONVERTER is a reference to
another Python Script.
The first <dtml-var "CONVERTER('','')"> works perfectly (the script is called
and returns correctly), but the SECOND ONE makes Zope core dump. Urglhh...
Can someone explain me this more than strange (and more than annoying) behaviour
?
Thanks,
Regards,
P.-J.
--
If the only tool you have is a hammer,
    you tend to see every problem as a nail.
Si le seul outil dont vous disposez est un marteau,
    vous avez tendance à voir chaque problème comme un clou.
                                       --Abraham Maslow
-- 
Chris McDonough                           Zope Corporation
http://www.zope.org                    http://www.zope.com

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