I'm adding a metabox on a custom post type and my nonce-verification fails. I'm not really where to look for why it's going wrong. Can anyone point me in the right direction? Here's my code:
function myplugin_add_metabox() {
add_meta_box(
'myplugin_box', // $id
'Some Title', // $title
'myplugin_box', // $callback
'custom_post_type', // $page
'normal', // $context
'high'); // $priority
}
add_action('add_meta_boxes', 'myplugin_add_metabox');
function myplugin_box() {
echo '<input type="hidden" name="myplugin_nonce" value="'.wp_create_nonce(basename(__FILE__)).'" />';
}
function myplugin_save_box() {
// verify nonce
if (!wp_verify_nonce($_POST['myplugin_nonce'], basename(__FILE__))) {
error_log("nonce verification failed", 0);
return $post_id;
}
error_log("nonce worked", 0);
}
add_action('save_post', 'myplugin_save_box');
Now, unfortunately I'm reading "nonce verification failed" in my log and not "nonce worked". Does anyone have an idea where to look for the error?
Thanks!