You may want to have active field groups for front-end forms, which is very common, but at the same time you may not want those fields to appear anywhere else at the dashboard. So it’s not an unnecessary setting. A draft Page as the location has served me well so far. I just give it a title “ACF FORMS – WARNING – DON’T DELETE !!!”
I usually create a draft Page and use it as the location. Ugly.
I was probably doing something wrong before, because I’ve tried again with the add_attachment action and this time I was successful.
function do_stuff_to_the_uploaded_attachment( $attachment_ID ) {
global $MY_ENDPOINT;
//$user_id = get_current_user_id();
if ( ! current_user_can( 'upload_files' ) ) {
return;
}
$args = array(
'ID' => $attachment_ID,
//'post_title' => 'My default title ...',
'post_excerpt' => 'My default caption ...',
'post_content' => $_SERVER[ 'HTTP_REFERER' ],
);
// Use the Title, Caption and Description,
// to output/diagnose the referer and other data.
wp_update_post( $args );
/**
* If the request came from the specific URL, then do stuff to the attachment.
*
* Note: Ideally we'd target the "Add Media" button itself,
* but since there doesn't seem to be anything identifiable about it,
* we're targeting the URL of its page.
*/
if ( strpos( $_SERVER[ 'HTTP_REFERER' ], $MY_ENDPOINT ) !== false ) {
// Do stuff to the attachment by using its ID i.e. $attachment_ID
}
}
add_action( 'add_attachment', 'do_stuff_to_the_uploaded_attachment', 10, 1 );
Thank you for taking a look into this! I had suspected that I should be focusing solely on WP hooks for this, and I have also been unsuccessful at finding the right one.
Since there doesn’t seem to be anything identifiable about a specific “Add Media” button, I should find a hook where the $_SERVER['HTTP_REFERER'] will point to the form’s page plus where I can access the attachment’s ID after it has been uploaded.
I’ve tried the ‘add_attachment‘ action but the referer is always media-new.php, then the ‘wp_handle_upload‘ filter doesn’t seem to provide a way to access the attachment’s ID, and ‘wp_handle_upload_prefilter‘ fires before the upload happens so no luck…
P.S.: Also many thanks for the aforementioned Image field solution. It was very useful for my projects.
