[wp-hackers] Status of sitewide categories/terms in WP3

Bjorn Wijers burobjorn at gmail.com
Thu Jun 3 08:15:23 UTC 2010

Andrew, thanks for the pointer and the correct jargon so I can have a 
look in Trac. I'm using the db option, yet the table is sometime 
(haven't been able to reproduce it) not created. On my server it gets 
created after changing the variable. On my friend's server it doesn't.

Do I understand you correctly that by setting the site option 
global_terms_enabled to the value 1 (true) the table should be created 
automatically, or does my plugin have to call the function mentioned in 
ticket #12666 explicitly? In other words what would be the correct 
behavior of this feature?



> We refer to sitewide categories as "global terms." Here's a Trac search
> using that terminology, http://core.trac.wordpress.org/search?q=global+terms,
> which should reveal many tickets and changesets.
> Without getting into the full details for why the sky will fall on your head
> -- in a nutshell, they are very messy and probably should never have been
> anything more than a plugin -- we are maintaining the ability to use global
> terms. If you are performing an upgrade from MU, then global terms will be
> on by default; in 3.0, they are off. They can be turned on again via a
> filter (or DB option) along with the creation of the sitecategories table
> (for which a function does exist). The filter, option and functions are
> documented in the ticket you reference, #12666.
> Likewise, they can be turned off with the same filter or by deleting or
> modifying a row in the sitemeta table.
> On Tue, Jun 1, 2010 at 8:08 AM, Bjorn Wijers<burobjorn at gmail.com>  wrote:
>> Hi all,
>> I'm on the verge of finishing a plugin (bbAggregate) which allows you to
>> aggregate posts from different blogs in the same WP3 install to be
>> aggregated based on sitewide categories.
>> According to this http://core.trac.wordpress.org/ticket/12666 this
>> functionality has some issues, but it is not clear what these issues are. I
>> have used the same functionality in WordPress MU for multiple clients with
>> success and would like to be able to use it in future WP releases as well
>> since my clients depend on it.
>> My questions are:
>> 1) What are the future plans for sitewide categories and?
>> 2) What needs to be done to keep the functionality? Regardless of it being
>> part of the core.
>> 3) What are the the remaining issues preventing this from working stable?
>> I can't find more info other than "the sky will fall on your head" with
>> regards to the issues and the info in
>> http://core.trac.wordpress.org/ticket/12666 is not helping (yet).
>> Any help or pointers on more information much appreciated!
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