I’ve been using archetypes.schemaextender lately, to extend the Plone Event schema (in an effort to get useable recurring events). And it works. No big problems, and highly recommended.
Only problem: Well, as I understand it, you can really only have one extender per type. This is solvable by letting that type in return look up other “subextenders”, which is what I do, but it would have been nicer if this was supported already.
Update: Wiggy tells me that you can have multiple extenders if you name them. I’ll try that.
An example of this will pop up in p4a.ploneevent shortly, which is the product that contain the recurring event support.
-
Recent Comments
Tweets- regebro: Sprint done, we reached the goal! We are proper cavemen!
- regebro: five.grok now has views and templates! (Although not all the tests are ported yet).
- regebro: @spanktar Well, I can't accuse McCain of having sheeps clothing, so that must be Obama. Wouldn't call any of them visionary.
- regebro: No, scratch that. Both are GREAT candidates.
- regebro: @spanktar Well, you will have soon. Both McCain and Obama are good candidates.
-
- Tweets
- regebro: Sprint done, we reached the goal! We are proper cavemen!
- regebro: five.grok now has views and templates! (Although not all the tests are ported yet).
- regebro: @spanktar Well, I can't accuse McCain of having sheeps clothing, so that must be Obama. Wouldn't call any of them visionary.
- regebro: No, scratch that. Both are GREAT candidates.
- regebro: @spanktar Well, you will have soon. Both McCain and Obama are good candidates.
January 20, 2008 at 23:02
You *can* have more extenders for each type, that was one of the first reasons for archetypes.schemaextender. You just register several *named* adapters on the same type, where the name itself is arbitrary, but to avoid conflicts you should use a dotted name related to you package name. The old way, where you wrote an adapter for ISchema directly only allowed one adapter.
January 21, 2008 at 2:07
This subject looks very much like extending a blog entry with comments! The only issue remaining is to attribute the correct name to a comment
January 21, 2008 at 8:30
Actually Wiggy told it to me via IRC, about exactly at the same time as Florian did here on the blog. So I didn’t see Rogers comment until after I edited the page.