[Zope] Mass update of a ZClass property?

[Satheesh Babu]

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Hi,

I've a ZClass that defines an  object of type X. In a folder there are
around 100 X objects. Now one of the properties of the ZClass is a
selection, drawn from a property "Category" which is of the type lines. The
values are
['Music','Software','Book']

Now, there is a requirement that 'Software' needs to be changed to 'CD'. How
do I change that in the 100 X objects, that have 'Software' category, in
one shot?

Calling manage_editProperties in a loop for 100 objects should work. But
this method needs REQUEST to be passed through. If I just set a REQUEST for
"Category" but that erases other properties of the object :-( So, I suppose
I've to load all properties for each object into REQUEST, then change
"Category" to CD if it is 'Software' and then call manage_editProperties.
Well, I tried playing with property_sheets.myproperty.propertyItems , with
not much luck.

Am I doing it in a round about way? Any easier solutions? I really miss SQL
here ;-(

V. Satheesh Babu        http://vsbabu.csoft.net

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