On Fri, 16 Jan 2004 18:33:25 +0100 GMT Marcus Bergmann asked the Zope mailinglist about the following:
I'm trying this:
<dtml-call "calendar.mailaddresses.remove(REQUEST.mailaddress)">
where 'calendar' is a folder, 'mailaddresses' is a property of it (type is lines) and 'mailaddress' is a variable the DTML method received via an HTML form.
After the request, the removed line entry seems to be gone. It's not shown in the ZMI or in my HTML site which shows me the mailaddresses. But if I restart Zope the removed line is there again. Also if I copy the folder, then the copy shows me the removed entry in its properties.
This is an issue with how persistence works. If you just change a mutable attribute, the ZODB does not know to update the object. something like this might work: tempaddresses = calendar.mailaddresses[:] tempaddresses.remove(REQUEST.mailaddress) calendar.mailaddresses = tempaddresses actually assigning a value to the property, not just changing it, should make Zope aware of the change. :) -- __________________________________________________________________ Geir Bækholt · Interaction Architect · Plone Solutions Development · Training · Support · http://www.plonesolutions.com __________________________________________________________________