[Zope] Zclass manage_changeProperties

[Sebal]

I want a method to change the 'auteur' property of my Zclass instance
'PDFclass'. The property sheet is PDFinfo and 'auteur' is a string field.

This is an example of what can be the method :
_______________________________________________
<dtml-var standard_html_header>
<dtml-call "REQUEST.set('numero_doc' , '7')">
  <dtml-in "Catalog({'numero_doc': _.str(numero_doc)})">
  <dtml-with getObject>
  <dtml-call
"Control_Panel.Products.PDFclass.propertysheets.PDFinfo.manage_changeProperties({'auteur':
 'nicolas'})">
  </dtml-with>
  </dtml-in>
_______________________________________________
and I get the following error :
Error Type: AttributeError
Error Value: PDFinfo

<!--
Traceback (innermost last):
  File /usr/local/Zope-2.3.1-linux2-x86/lib/python/ZPublisher/Publish.py,
line 223, in publish_module
  File /usr/local/Zope-2.3.1-linux2-x86/lib/python/ZPublisher/Publish.py,
line 187, in publish
  File /usr/local/Zope-2.3.1-linux2-x86/lib/python/Zope/__init__.py, line
221, in zpublisher_exception_hook
    (Object: Traversable)
  File /usr/local/Zope-2.3.1-linux2-x86/lib/python/ZPublisher/Publish.py,
line 171, in publish
  File /usr/local/Zope-2.3.1-linux2-x86/lib/python/ZPublisher/mapply.py,
line 160, in mapply
    (Object: test)
  File /usr/local/Zope-2.3.1-linux2-x86/lib/python/ZPublisher/Publish.py,
line 112, in call_object
    (Object: test)
  File /usr/local/Zope-2.3.1-linux2-x86/lib/python/OFS/DTMLMethod.py, line
189, in __call__
    (Object: test)
  File
/usr/local/Zope-2.3.1-linux2-x86/lib/python/DocumentTemplate/DT_String.py,
line 538, in __call__
    (Object: test)
  File
/usr/local/Zope-2.3.1-linux2-x86/lib/python/DocumentTemplate/DT_In.py, line
713, in renderwob
    (Object: Catalog({'numero_doc': _.str(numero_doc)}))
  File
/usr/local/Zope-2.3.1-linux2-x86/lib/python/DocumentTemplate/DT_With.py,
line 146, in render
    (Object: getObject)
  File
/usr/local/Zope-2.3.1-linux2-x86/lib/python/DocumentTemplate/DT_Util.py,
line 334, in eval
    (Object:
Control_Panel.Products.PDFclass.propertysheets.PDFinfo.manage_changeProperties({'auteur':
 'nicolas'}))
    (Info: Control_Panel)
  File <string>, line 0, in ?
  File
/usr/local/Zope-2.3.1-linux2-x86/lib/python/DocumentTemplate/DT_Util.py,
line 127, in careful_getattr
AttributeError: (see above)

-->

I really don't understand, I read the syntax from the [Zope-DEV]mailing list
and it seems to be correct.

thanx, sbaline

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