[wp-hackers] Two multisite installations, same users

Daniel danielx386 at gmail.com
Sat Oct 19 02:52:00 UTC 2013

And how do you keep the user data in sync?
Daniel Fenn

On Sat, Oct 19, 2013 at 1:48 PM, Andrew Nacin <wp at andrewnacin.com> wrote:
> You can share user tables across cross installs. Just make sure you are
> using different table prefixes.
> http://codex.wordpress.org/Editing_wp-config.php#Custom_User_and_Usermeta_Tables
> On Oct 18, 2013 10:56 AM, "Dobri" <dyordan1 at ramapo.edu> wrote:
>> Hi all,
>> I'm dealing with a problem that I'm trying to resolve in the most elegant
>> way possible. I work for an educational institution which has about 200
>> sites on a WordPress multisite installation. They want to rip out some of
>> the content from their public domain and put it in an Intranet that's
>> restricted in access from only campus. So they decided to create a separate
>> WordPress multisite installation. Now, I'm trying to figure out how to have
>> users on the two sites sync up without running into permissions issues. We
>> have about 150 users and we constantly add and remove them so it's
>> impractical to keep two sets of users.
>> TLDR: Two multisite installations, need to have the same user accounts.
>> Here are two solutions I was considering:
>> 1. Have the second multisite installation read/write to the users and
>> usermeta tables of the first one, kicking up blog_id to 2^32+1 (so it's
>> halfway through the range of blog_id)
>> That way, I hope, usermeta will not have any permissions conflicts because
>> at that point the two wordpress multisite installations become one in terms
>> of user permissions, just with a huge hole in the ids
>> TLDR 1: second multisite read/writes to wp_users and wp_usermeta. blog_id
>> for wp_blogs on second installation is bumped up to avoid collisions.
>> 2. Have the second multisite installation READ ONLY from the users table,
>> keeping its own usermeta table and then have a service that runs at
>> midnight for usermeta maintenance (copy over first/last name, etc. from
>> main installation and clean up if user was deleted, make sure to not touch
>> permissions on second site except for the case when a user is removed,
>> etc.). This solution seems safer but users cannot be created/deleted from
>> the secondary installation and users will not be able to change their
>> password (and other things stored in wp_users) on the secondary site.
>> TLDR 2: second multisite only reads wp_users and maintains its own
>> wp_usermeta.
>> Which one do you think seems like the better option? Do you have any other
>> suggestions that might work better? Thank you!
>> ~Dobri
>> _______________________________________________
>> wp-hackers mailing list
>> wp-hackers at lists.automattic.com
>> http://lists.automattic.com/mailman/listinfo/wp-hackers
> _______________________________________________
> wp-hackers mailing list
> wp-hackers at lists.automattic.com
> http://lists.automattic.com/mailman/listinfo/wp-hackers

More information about the wp-hackers mailing list