Mark,
One way to accomplish this is to use a 'monkey patch'. This is a bit
wonky, but commonly used to simply override methods or variables in
Products without changing the live code. A monkey patch is basically a
runtime override of another product.
The simplest way to do this is to create a new product (just a new
folder in the Products folder, like MyATVocabularyManager), and add an
__init__.py file to it. In the __init__.py file, define your new
schema, then at the end of the file, set ATVocabularyManager's schema to
yours, something like:
from Products.ATVocabularyManager as ATVocabularyManager
ATVocabularyManager.simple.schema = schema
Then start up your Zope, and hopefully you get your new schema. ;)
To see some samples of this, do: grep -ir monkey Products/*
Also, you could probably import the original schema, then only change
the pieces you want to change, then use that new schema.
Chris
On 5/11/10 4:31 PM, Mark Phillips wrote:
I need to make a small change to ATVocabularyManager. Specifically, I
need a simple vocabulary value to be longer than 32 characters; ie a
TextField and not a StringField for the value of the key-value pair.
What is the "right" way to make this change - copy ATVocabularyManger
to MyATVocabularyManger, make the change to simple.py and install
MyAtVocabularyManger? Or is there a way to "extend" the product as I
can extend a class and just change the schema for simple.py? Not sure
how I would do the second option.
Thanks!
Mark
P.S. I am referring to Plone 2.5.5
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Chris Crownhart
Core Software Group
http://www.coresoftwaregroup.com
303/809-1001
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