How would I go about adding a column to the Page Admin area that would show the last revision date of all pages? Alongside the Author and Published Date columns?
I need to keep an eye on the page edits that other users do, and right now, the Page Admin area will only show the published date for a published page and the last modified date of a draft. So I need to show the revision date by any user of each published page.
Possibly complicating things is I have post/page revisions disabled in wp-config.php to keep the database down to size, so an action can't hook into already existing page revision metadata.
But the database contains a
post_modified_gmt metadata column, so can that be grabbed by a direct database query? Not a good idea? And would I use this kind of action? http://codex.wordpress.org/Plugin_API/Action_Reference/manage_posts_custom_column