I have a running normal WP blog (blog 1). I want to create a Q&A section for my users, so I setup another blog with WP- theme (blog 2).
The problem is I don’t want my users at blog 1 have to register at blog 2 to post questions. I want they automatically grant the same privileges at blog 2.
How can this be achieved? Do you have any advice for me?
Thank you very much.
I think you want to install your second site on the same database but with a different table prefix, e.g. $table_prefix = "qa_"; in wp-config.php
You are then able to define a custom user and/or user_meta table by adding the following lines to wp-config.php
define('CUSTOM_USER_TABLE', [orig_table_prefix].'my_users');
define('CUSTOM_USER_META_TABLE', [orig_table_prefix].'my_usermeta');
Source: http://codex.wordpress.org/Editing_wp-config.php#Custom_User_and_Usermeta_Tables
I have read somewhere before that you may have to sort out a couple of issues of admin users on the second site, can’t find the link at the moment.