Re: [Zope] Python/TAL Problem

Tue, 25 Jul 2006 10:06:09 -0700 

Guess guess, do all objects have the 'KW1' property? I don't think so.
Try this:

  <div tal:define="blankstring string:">
     <input type="text" name="rows.title:records" size="50"
            tal:attributes="value python:item/KW1|blankstring" />
     <input type="hidden" name="prev_rows.title:records"
            tal:attributes="value item/KW1|blankstring" />
  </div>

beno wrote:

Hi;
I'm trying to tweak someone else' script to get it to do what I want. The script reads from and writes to the "Properties" tab of pages and folders, enabling one to change the titles of many pages/folders from one single script-generated page. I want to be able to do the same thing with another field I created called "KW1" (string) in the Properties tab. The following is a snip of the code that needs to be altered (the only code where "title" appears): 

     <input type="text" name="rows.title:records" size="50"
            tal:attributes="value python:item['title']" />
     <input type="hidden" name="prev_rows.title:records"
            tal:attributes="value item/title" />
If I alter line #2 and change "title" to "KW1" I get the following error snippet: 

   * Module Products.PageTemplates.ZRPythonExpr, line 47, in __call__
     __traceback_info__: item['KW1']
   * Module Python expression "item['KW1']", line 1, in <expression>
   * Module AccessControl.ZopeGuards, line 67, in guarded_getitem

If I alter line #4 and change "title" to "KW1" I get this error snippet:

   * Module Products.PageTemplates.Expressions, line 174, in __call__
   * Module Products.PageTemplates.Expressions, line 162, in _eval
   * Module Products.PageTemplates.Expressions, line 116, in _eval
     __traceback_info__: item
   * Module Products.PageTemplates.Expressions, line 320, in
     restrictedTraverse
     __traceback_info__: {'path': ['KW1'], 'TraversalRequestNameStack': []}
I have added KW1 as a string property to many of the pages in the target folder. What am I doing wrong? Complete code and complete errors follow. 
Thanks.








COMPLETE SCRIPT

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";>
<html tal:condition="here/formHandler">

<!--
<script type="text/javascript" src="main.js"></script>
-->

<body>

<h1>Manage Hierarchy</h1>


<form action="" method="post" name="form" id="form"
     tal:define="root python:request.fields['root'];
items python:root['value'] and sequence.sort(here.getEntries(root['value'], all=1), (('id', 'cmp', 'desc'),))"> 


<div id="filter">
 <select name="root"
         tal:define="items python:here.getEntries('en-us', 2)">
<option value="">&#8212;&#8212;Select Folder&#8212;&#8212;</option> 
   <option tal:repeat="item items"
tal:content="structure python:'%s\--%s' % ('&nbsp;'*5*item['level'], item['id'])" 
           tal:attributes="value python:item['url'];
                           selected python:item['url'] == root['value']">
   </option>
 </select>
 <input type="submit" name="onOk" value="Ok" />
</div>



<div id="resultSet">
 <table cellspacing="0" cellpadding="3" border="1"
        tal:condition="items">
 <tr>
   <th>ID</th>
   <th>KW1</th>
 </tr>
 <tr valign="top"
     tal:repeat="item items">
   <td>
<span tal:replace="structure python:'&nbsp;' * (8 * item['level']) + item['id']">ID</span> 
     <input type="hidden" name="rows.id:records"
            tal:attributes="value python:item['url']" />
   </td>
   <td>
     <input type="text" name="rows.title:records" size="50"
            tal:attributes="value python:item['title']" />
     <input type="hidden" name="prev_rows.title:records"
            tal:attributes="value item/title" />
   </td>
 </tr>
 </table>

 <div tal:condition="python:not items">
   Sorry... no items to manage.<br />
 </div>
</div>




<div id="buttons">
 <input type="submit" name="onSaveChanges" value=" Save Changes "
        tal:condition="items" />
</div>

</form>


</body>
</html>





FIRST ERROR MESSAGE
from changing tal:attributes="value python:item['title']" /> to tal:attributes="value python:item['KW1']" /> 


   Site Error

An error was encountered while publishing this resource.

*KeyError*

Sorry, a site error occurred.

Traceback (innermost last):

   * Module ZPublisher.Publish, line 175, in publish_module_standard
   * Module ZPublisher.Publish, line 132, in publish
   * Module Zope.App.startup, line 204, in zpublisher_exception_hook
   * Module ZPublisher.Publish, line 101, in publish
   * Module ZPublisher.mapply, line 88, in mapply
   * Module ZPublisher.Publish, line 39, in call_object
   * Module Shared.DC.Scripts.Bindings, line 306, in __call__
   * Module Shared.DC.Scripts.Bindings, line 343, in _bindAndExec
   * Module Products.PageTemplates.ZopePageTemplate, line 222, in _exec
   * Module Products.PageTemplates.PageTemplate, line 96, in pt_render
     *<ZopePageTemplate at /footprints.2012.vi/test_kw/main/index_html>*
   * Module TAL.TALInterpreter, line 190, in __call__
   * Module TAL.TALInterpreter, line 234, in interpret
   * Module TAL.TALInterpreter, line 637, in do_condition
   * Module TAL.TALInterpreter, line 234, in interpret
   * Module TAL.TALInterpreter, line 637, in do_condition
   * Module TAL.TALInterpreter, line 234, in interpret
   * Module TAL.TALInterpreter, line 613, in do_loop_tal
   * Module TAL.TALInterpreter, line 234, in interpret
   * Module TAL.TALInterpreter, line 263, in do_startEndTag
   * Module TAL.TALInterpreter, line 291, in do_startTag
   * Module TAL.TALInterpreter, line 357, in attrAction_tal
   * Module Products.PageTemplates.TALES, line 227, in evaluateText
   * Module Products.PageTemplates.TALES, line 221, in evaluate
     *URL: /footprints.2012.vi/test_kw/main/index_html*
     *Line 50, Column 6*
     *Expression: <PythonExpr item['KW1']>*
     *Names:*

     {'container': <Folder instance at 14c7e500>,
      'context': <Folder instance at 14c7e500>,
'default': <Products.PageTemplates.TALES.Default instance at 0x8a1d62c>, 
      'here': <Folder instance at 14c7e500>,
      'loop': <SafeMapping instance at 14ce4460>,
'modules': <Products.PageTemplates.ZRPythonExpr._SecureModuleImporter instance at 0x8a1d06c>, 
      'nothing': None,
      'options': {'args': ()},
      'repeat': <SafeMapping instance at 14ce4460>,
'request': <HTTPRequest, URL=http://2012.vi:7080/footprints.2012.vi/test_kw/main/index_html>, 
      'root': <Application instance at c899170>,
'template': <ZopePageTemplate at /footprints.2012.vi/test_kw/main/index_html>, 
      'traverse_subpath': [],
      'user': tick}

   * Module Products.PageTemplates.ZRPythonExpr, line 47, in __call__
     __traceback_info__: item['KW1']
   * Module Python expression "item['KW1']", line 1, in <expression>
   * Module AccessControl.ZopeGuards, line 67, in guarded_getitem
KeyError: 'KW1' (Also, an error occurred while attempting to render the standard error message.) 








SECOND ERROR MESSAGE
from replacing tal:attributes="value item/title" /> with tal:attributes="value item/KW1" /> 


   Site Error

An error was encountered while publishing this resource.

*KeyError*

Sorry, a site error occurred.

Traceback (innermost last):

   * Module ZPublisher.Publish, line 175, in publish_module_standard
   * Module ZPublisher.Publish, line 132, in publish
   * Module Zope.App.startup, line 204, in zpublisher_exception_hook
   * Module ZPublisher.Publish, line 101, in publish
   * Module ZPublisher.mapply, line 88, in mapply
   * Module ZPublisher.Publish, line 39, in call_object
   * Module Shared.DC.Scripts.Bindings, line 306, in __call__
   * Module Shared.DC.Scripts.Bindings, line 343, in _bindAndExec
   * Module Products.PageTemplates.ZopePageTemplate, line 222, in _exec
   * Module Products.PageTemplates.PageTemplate, line 96, in pt_render
     *<ZopePageTemplate at /footprints.2012.vi/test_kw/main/index_html>*
   * Module TAL.TALInterpreter, line 190, in __call__
   * Module TAL.TALInterpreter, line 234, in interpret
   * Module TAL.TALInterpreter, line 637, in do_condition
   * Module TAL.TALInterpreter, line 234, in interpret
   * Module TAL.TALInterpreter, line 637, in do_condition
   * Module TAL.TALInterpreter, line 234, in interpret
   * Module TAL.TALInterpreter, line 613, in do_loop_tal
   * Module TAL.TALInterpreter, line 234, in interpret
   * Module TAL.TALInterpreter, line 263, in do_startEndTag
   * Module TAL.TALInterpreter, line 291, in do_startTag
   * Module TAL.TALInterpreter, line 357, in attrAction_tal
   * Module Products.PageTemplates.TALES, line 227, in evaluateText
   * Module Products.PageTemplates.TALES, line 221, in evaluate
     *URL: /footprints.2012.vi/test_kw/main/index_html*
     *Line 52, Column 6*
     *Expression: standard:'item/KW1'*
     *Names:*

     {'container': <Folder instance at 14c7e500>,
      'context': <Folder instance at 14c7e500>,
'default': <Products.PageTemplates.TALES.Default instance at 0x8a1d62c>, 
      'here': <Folder instance at 14c7e500>,
      'loop': <SafeMapping instance at 14ce4280>,
'modules': <Products.PageTemplates.ZRPythonExpr._SecureModuleImporter instance at 0x8a1d06c>, 
      'nothing': None,
      'options': {'args': ()},
      'repeat': <SafeMapping instance at 14ce4280>,
'request': <HTTPRequest, URL=http://2012.vi:7080/footprints.2012.vi/test_kw/main/index_html>, 
      'root': <Application instance at c899170>,
'template': <ZopePageTemplate at /footprints.2012.vi/test_kw/main/index_html>, 
      'traverse_subpath': [],
      'user': tick}

   * Module Products.PageTemplates.Expressions, line 174, in __call__
   * Module Products.PageTemplates.Expressions, line 162, in _eval
   * Module Products.PageTemplates.Expressions, line 116, in _eval
     __traceback_info__: item
   * Module Products.PageTemplates.Expressions, line 320, in
     restrictedTraverse
     __traceback_info__: {'path': ['KW1'], 'TraversalRequestNameStack': []}
KeyError: 'KW1' (Also, an error occurred while attempting to render the standard error message.) 
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--
Peter Bengtsson,
work www.fry-it.com
home www.peterbe.com
hobby www.issuetrackerproduct.com
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