[Zope] Using "Class-Hierarchies" in Zope

[Andreas Pakulat]

On 06.Jun 2003 - 20:49:25, Dieter Maurer wrote:
> Andreas Pakulat wrote at 2003-6-6 01:27 +0200:
>  > ....
>  > Got another problem with these both classes.
>  > ...
>  > Now I have a View Prop, which connects to A/propertysheets/Attributes,
>  > but if I click on the Prop tab of my new instance I get the following
>  > error:
>  > 
>  > exceptions.TypeError
>  > 
>  > 'in ' requires character as left operandTraceback (innermost last):
>  > Module ZPublisher.Publish, line 150, in publish_module Module
>  > ZPublisher.Publish, line 114, in publish Module ZPublisher.Publish, line
>  > 98, in publish Module ZPublisher.mapply, line 88, in mapply Module
>  > ZPublisher.Publish, line 39, in call_object Module
>  > Shared.DC.Scripts.Bindings, line 252, in __call__ Module
>  > Shared.DC.Scripts.Bindings, line 283, in _bindAndExec Module
>  > App.special_dtml, line 174, in _exec Module DocumentTemplate.DT_In, line
>  > 705, in renderwob Module DocumentTemplate.DT_In, line 705, in renderwob
>  > Module DocumentTemplate.DT_Util, line 201, in eval - __traceback_info__:
>  > getProperty Module , line 0, in ? TypeError: (see above)
>  > 
>  > Which is not very useful to me :(
> 
> It's the same for us:
> 
>   Can you please tell your mail writer *not* to reflow the
>   traceback.

No I cannot :( but the whole text is displayed on 1 line in zope!

>   Beside the traceback, we need "Error type" and "Error value" to
>   make up our mind.

It's both there: Excetion.TypeError and the value is "in requires
character as left operand"

> That said:
> 
>   Your request calls a "DTMLFile" object (the traceback unfortunately
>   does not tell which one). It executes a "dtml-in" which
>   contains a '... expr="...getProperty..."'.
>   This "getProperty" is called with wrong parameters.

That I already knew.

>   Find the DTMLFile, find the "getProperty" and decide why it is
>   called in the wrong way.

And there's the problem. As said in the original Mail its a "Property"
Tab of a ZClass, which I created in the "View" Tab of the ZClass using
the ZClass/propertysheets/myproperties/manage. And I also said that it
only comes up if I have the multiple selection property in the
Propertysheet. So I told you everything I know and could find out
without help. I don't know much about all the Python-Classes in the
lib/python directory and I'm not able to find out which Method brings up
the error.

Andreas

-- 
Beware of low-flying butterflies.