Mailing List Archive: __bobo_traverse__ or similiar with python tales expression?

Hello fellow Zopees,

the product weâ€™re using (ZMS) allows methods as attributes to custom object models. These methodes (PythonScript) are created inside a metamanager container as â€žWiki.mymethodâ€œ, where Wiki is the meta type of the custom object.

The pathhandler method of these custom objects modifies __bobo_traversal__ for normal http requests and maps these non-existing methods in that context to existing methods in the metaobj_manager container using the context meta_id.

Calling the same method from a PageTemplate or other PythonScript does not reflect that and - not surprisingly - returns an AttributeError:

File "/opt/python/zope2-pip/lib/python2.7/site-packages/Products/PageTemplates/ZRPythonExpr.py", line
48, in __call__
return eval(self._code, vars, {})
File "PythonExpr", line 1, in <expression>
AttributeError: dummyFunction

Is there a way to modify traversal behaviour from the Product or somehow different?

Best
Sebastian
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As Iâ€™m still experimenting with this maybe someone here could answer that one:

I have PythonScripts or PageTemplates inside a folderish container in the tree:

root
- folder1
â€” object1
â€” folder2
â€”â€” script1
â€”â€” script2
â€”â€” template1

Iâ€™d like object1 to acquire script1, script2 and template1 from folder2 as if they were attributes/methods of object1, though theyâ€™re not.

Iâ€™ve played around with modifying __of__ and tried some stuff with __getattr__ and __getattribute__, but no success so far.

A simple

def __of__(self, parent):
""" ... """
return self.__of__(self.folder2)

in the class of object1 is not working as it always returns "The object at root.folder2 has an empty or missing docstring. Objects must have a docstring to be published.â€œ

the object1 class definitely has a docstring.

Any hints how to achieve what Iâ€™m trying? Wrong approach?

Best, Sebastian

> Anfang der weitergeleiteten Nachricht:
>
> Von: Sebastian TÃ¤nzer <st@taenzer.me>
> Betreff: __bobo_traverse__ or similiar with python tales expression?
> Datum: 11. Juli 2015 19:53:29 MESZ
> An: zope@zope.org
>
> Hello fellow Zopees,
>
> the product weâ€™re using (ZMS) allows methods as attributes to custom object models. These methodes (PythonScript) are created inside a metamanager container as â€žWiki.mymethodâ€œ, where Wiki is the meta type of the custom object.
>
> The pathhandler method of these custom objects modifies __bobo_traversal__ for normal http requests and maps these non-existing methods in that context to existing methods in the metaobj_manager container using the context meta_id.
>
> Calling the same method from a PageTemplate or other PythonScript does not reflect that and - not surprisingly - returns an AttributeError:
>
> File "/opt/python/zope2-pip/lib/python2.7/site-packages/Products/PageTemplates/ZRPythonExpr.py", line
> 48, in __call__
> return eval(self._code, vars, {})
> File "PythonExpr", line 1, in <expression>
> AttributeError: dummyFunction
>
> Is there a way to modify traversal behaviour from the Product or somehow different?
>
> Best
> Sebastian

_______________________________________________
Zope maillist - Zope@zope.org
https://mail.zope.org/mailman/listinfo/zope
** No cross posts or HTML encoding! **
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https://mail.zope.org/mailman/listinfo/zope-announce
https://mail.zope.org/mailman/listinfo/zope-dev )