A couple of weeks ago, I started a discussion here
(http://groups.google.com/group/trac-users/msg/e37e372683f8b419) about a means
to propagate changes between tickets. I've now completed a rough first draft
of the Value Propagation Plugin, a configurable ticket change listener that can
update one ticket based on changes in another. It is hosted at Trac-Hacks
(http://trac-hacks.org/wiki/ValuePropagationPlugin).
The plugin supports three types of relationships:
* self - the "other" ticket is the current ticket (update another field)
* link - the other tickets are listed in a field of this ticket
* query - the other tickets can be queried based on this ticket's ID
There are several methods of updating the other ticket's value:
* sum - add this ticket's value to the other ticket's value. (This ticket's
old value is subtracted first.) Essentially:
oldOther[to] -= old_values[from]
newOther[to] += ticket[from]
* min - the other ticket's value is the minimum of it's old value and this
ticket's value
* max - the other ticket's value is the maximum of it's old value and this
ticket's value
* suffix - this ticket's value is added as a suffix to the other ticket's
value. (This ticket's old value is removed first.)
* prefix - this ticket's value is added as a prefix to the other ticket's
value. (This ticket's old value is removed first.)
Feedback is very welcome but please be kind; I have 25 years experience
programming but only about 25 days with Python.
Chris
--
Christopher Nelson, Software Engineering Manager
SIXNET - Solutions for Your Industrial Networking Challenges
331 Ushers Road, Ballston Lake, NY 12019
Tel: +1.518.877.5173, Fax: +1.518.877.8346 www.sixnet.com
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