I have the following code, which works great. But when I use it, my custom fields are not showing anymore.
Why is this and how can I fix this?
function filter_where( $where ) {
global $current_user;
global $wpdb;
if( is_user_logged_in() && is_admin()){
if( isset( $_POST['action'] ) ){
if( $_POST['action'] == 'query-attachments' ){
$where .= " AND (($wpdb->postmeta.meta_key = 'mediatoegang' AND $wpdb->postmeta.meta_value LIKE '%administrator%')) ";
}
}
}
return $where;
}
add_filter('posts_where', 'filter_where');
function custom_posts_join($join){
global $wpdb;
if( is_user_logged_in() && is_admin()){
$join .= " LEFT JOIN $wpdb->postmeta ON $wpdb->posts.ID = $wpdb->postmeta.post_id ";
}
return $join;
}
add_filter( 'posts_join' , 'custom_posts_join');
Because you are altering every query run by $wpdb that meets the conditions and you’re probably effecting other queries that you aren’t meaning to alter.
Well yes and no. When I edit my media on the /upload.php?mode=list url everything is OK.
But when i edit my media on the /upload.php?mode=grid url the fields are gone. Allso when i try to add media the fields are gone.
Kinda weird right?
The media grid layout works differently than other things in WP. I’ve had trouble with it myself. It has to do with it being a modal window…. I never did get my problems worked out.
My suggestion would be to use error_log() to output some stuff into the error log so you can see what’s happening and why.
Turn on the error log in wp-config.php
define('WP_DEBUG', true );
define('WP_DEBUG_DISPLAY', false);
define('WP_DEBUG_LOG', true);
then do something like this
function filter_where( $where ) {
global $current_user;
global $wpdb;
if( is_user_logged_in() && is_admin()){
if( isset( $_POST['action'] ) ){
if( $_POST['action'] == 'query-attachments' ){
$where .= " AND (($wpdb->postmeta.meta_key = 'mediatoegang' AND $wpdb->postmeta.meta_value LIKE '%administrator%')) ";
}
}
}
// write where to error log
error_log($where);
return $where;
}
add_filter('posts_where', 'filter_where');
then you can look into the error log and see what you put there. You can also log other things to find out what’s going on.
