[wp-hackers] Single Category Store across Sites on Multisite?

Dion Hulse (dd32) wordpress at dd32.id.au
Tue Jan 11 17:33:46 UTC 2011

The main problem with the global terms is that every blog has to have it's
own taxonomy tables, you can't just redirect all taxonomy tables to a
central one, as you end up with duplicate post ID's in the relational table.

You could possible set $wpdb->term_table to always point to a central
listing.. with each blog having their own taxonomy and relationship
But i'm mainly thinking out loud here, I'll leave it with "It's really not
the most ideal thing to want to do at the present time"

On 11 January 2011 12:29, Dan Smart <dan at dansmart.co.uk> wrote:

> I have grappled with that issue precisely for a current project. I was
> informed that global terms was not properly implemented and was in effect
> deprecated.
> I ended up implementing replication of categories across the sites on
> category save/delete, which would be a horribly slow operation with more
> than about 10 sites, but which was an acceptable compromise for this
> project.
> MU Sitewide tags doesn't really address this issue, though people suggest
> it as an option. You have to use it's entire multiblog post thing too,
> whereas I was applying a category to a single-sited custom post type.
> It seems like a good thing to have as part of core, I didn't want to go
> down the road of modifying core of course.
> Dan Smart - Web Developer
> www.dansmart.co.uk
> On 11 Jan 2011, at 17:12, Mike Schinkel <mikeschinkel at newclarity.net>
> wrote:
> > This question got me thinking about if it is possible (practical?) to
> have a single category store across sites on multisite?
> >
> >
> http://wordpress.stackexchange.com/questions/6722/can-you-have-a-single-set-of-canonical-categories-shared-by-all-blogs
> >
> > The more I think of it the more it seems like it just wouldn't be viable.
>  Anyone have alternate experience?
> >
> > -Mike
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