Will,
I’m trying to prevent registered users who have not activated their account. I’ve already implemented creating a user with a md5 unique id in the usermeta table (attached to their user id). I’m basically trying to check for that “activation_key’ value in the usermeta table on login, if a value exists, I want to prevent the login from occurring.
The authenticate filter seems to be exactly what I need but after modifying it and placing it into my functions.php file, it doesn’t seem to work! Login occurs per usual.
Would I need to edit the pluggable.php file, and then apply filter in my functions.php file?