[Zope] Zclass problem

[Brown Fox]

Hello,
i want to create an image object that show its content
only if the user have enough "power" to see it.
I've created a Zclass, added my power property and
then changed the view method with this one:

<dtml-var standard_html_header>
... check the power and then if ok...
<dtml-call "propertysheets.view_image_or_file">
<dtml-var standard_html_footer>

But it's not working, why?

Thanks,
	Bruno



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