Ich habe das fast zum Laufen gebracht, aber es sind Verbesserungen erforderlich, um den Besonderheiten der Frage zu entsprechen und mit Anhängen und Post-Typen unterschiedlich umzugehen (siehe Kommentare im Code) ...
Zunächst denke ich, dass es erwähnenswert ist, wie ich den Filter gefunden habe:
apply_filters( 'views_' . $screen->id, $views )
foreach( array( 'edit-post', 'edit-page', 'edit-movie', 'upload' ) as $hook )
add_filter( "views_$hook" , 'wpse_30331_custom_view_count', 10, 1);
function wpse_30331_custom_view_count( $views )
{
global $current_screen;
switch( $current_screen->id )
{
case 'edit-post':
$views = wpse_30331_manipulate_views( 'post', $views );
break;
case 'edit-page':
$views = wpse_30331_manipulate_views( 'page', $views );
break;
case 'edit-movie':
$views = wpse_30331_manipulate_views( 'movie', $views );
break;
case 'upload':
$views = wpse_30331_manipulate_views( 'attachment', $views );
break;
}
return $views;
}
function wpse_30331_manipulate_views( $what, $views )
{
global $user_ID, $wpdb;
/*
* This is not working for me, 'artist' and 'administrator' are passing this condition (?)
*/
if ( !current_user_can('artist') )
return $views;
/*
* This needs refining, and maybe a better method
* e.g. Attachments have completely different counts
*/
$total = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->posts WHERE (post_status = 'publish' OR post_status = 'draft' OR post_status = 'pending') AND (post_author = '$user_ID' AND post_type = '$what' ) ");
$publish = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->posts WHERE post_status = 'publish' AND post_author = '$user_ID' AND post_type = '$what' ");
$draft = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->posts WHERE post_status = 'draft' AND post_author = '$user_ID' AND post_type = '$what' ");
$pending = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->posts WHERE post_status = 'pending' AND post_author = '$user_ID' AND post_type = '$what' ");
/*
* Only tested with Posts/Pages
* - there are moments where Draft and Pending shouldn't return any value
*/
$views['all'] = preg_replace( '/\(.+\)/U', '('.$total.')', $views['all'] );
$views['publish'] = preg_replace( '/\(.+\)/U', '('.$publish.')', $views['publish'] );
$views['draft'] = preg_replace( '/\(.+\)/U', '('.$draft.')', $views['draft'] );
$views['pending'] = preg_replace( '/\(.+\)/U', '('.$pending.')', $views['pending'] );
// Debug info
//echo 'Default counts: <pre>'.print_r($views,true).'</pre>';
//echo '<hr><hr>';
//echo 'Query for this screen of this post_type: <b>'.$what.'</b><pre>'.print_r($wp_query,true).'</pre>';
return $views;
}
Diese Funktionalität befindet sich derzeit in der Klasse WP_List_Table in der Methode "views ()".
Der Filter sieht jetzt so aus:
$ views enthält ein Array jedes Listenelements:
Sie können es am current_screen-Hook mit einer Priorität> 10 anschließen:
Sie können dann Elemente in der Liste hinzufügen / ändern / entfernen.
quelle