Ability to order users by number of posts in custom post type

[meevly]

When searching for users by post_count, post type post is hardcoded in WP_User_Query class at line 765. I would like to suggest adding a parameter that allows sorting users by post count in a custom post type.

[sabernhardt]

@meevly Thanks for the ticket and welcome to Trac!

This functionality would be more appropriate in a plugin instead of core, especially if one person wants a count for a specific custom post type and another wants to sort on the total of multiple post types. (See also related ticket:15200#comment:1 about showing the counts.)

Admin Columns Pro might work for you. The free version enables you add a Post Count column for a custom post type, and sorting that column is a Pro feature.
​https://wordpress.org/plugins/codepress-admin-columns/

I found out about that plugin when searching the support forum:
​https://wordpress.org/support/topic/sort-user-php-by-last-name/

And there is at least one support topic about creating your own solution:
​https://wordpress.org/support/topic/creating-custom-columns-of-users-and-sorting-them/

[sabernhardt]

I am less sure about leaving this to plugins than I was five years ago, but the ticket does not have any activity since then.

For an update on the hardcoded post location, it is now on ​line 1008 in WP_User_Query::parse_orderby().