Just a quick question to see if anyone has done this before, is there a function that I can use to add a custom message to the "Wordpress XX is available"
Recently, I've had clients updating their own site and making a right mess of things, especially with third party plugins.
I just want to throw a notification on saying how updating could cause issues, please contact me first.
Why not just remove it completely?
You can add this to your themes functions.php file:
// Hide update notice for everyone except admins function wps_hide_update_notice() { if ( !current_user_can( 'manage_options' ) ) { remove_action( 'admin_notices', 'update_nag', 3 ); } } add_action('admin_menu','wps_hide_update_notice'); Because there is no filter to customize the message for available updates, you need first to remove that message and display yours:
Remove actions that will display the update notifications:
function hide_original_update_notice() { remove_action( 'admin_notices', 'update_nag', 3 ); remove_action( 'network_admin_notices', 'update_nag', 3 ); } add_action( 'admin_head', 'hide_original_update_notice', 1 ); Create your notification action:
function my_custom_update_nag() { if ( is_multisite() && !current_user_can('update_core') ) return false; global $pagenow; if ( 'update-core.php' == $pagenow ) return; $cur = get_preferred_from_update_core(); if ( ! isset( $cur->response ) || $cur->response != 'upgrade' ) return false; if ( current_user_can('update_core') ) { $msg = sprintf( __('<a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> is available! <a href="%2$s">Please update now</a>.'), $cur->current, network_admin_url( 'update-core.php' ) ); } else { $msg = sprintf( __('<a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> is available! Please notify the site administrator.'), $cur->current ); } echo "<div class='update-nag'>$msg</div>"; } add_action( 'admin_notices', 'my_custom_update_nag', 3 ); add_action( 'network_admin_notices', 'my_custom_update_nag', 3 ); 