Didn't get array of users like in delete action WPList table in users tab

Question

I am adding a bulk action assign just like delete.

add_filter( 'bulk_actions-users', array( $this, 'add_bulk_action' ) );

/**
 * Add Bulk Assign Action.
 * @param  array    $actions    Current Actions.
 * @return array    All Actions along with assign action.
 */
public function add_bulk_action( $actions ) {
    $actions['assign'] = __( 'Assign', 'wp-assign' );

    return $actions;
}

However, while trying to trigger the assign action, I am not being able to get the users selected with checkbox.

add_action( 'load-users.php', array( $this, 'trigger_bulk_actions' ) );
public function trigger_query_actions() {
       print_r( $_REQUEST );
}

While triggering the delete action I can get users in $_REQUEST

[12-Oct-2018 13:36:56 UTC] Array
(
    [s] => 
    [_wpnonce] => c48578ebab
    [_wp_http_referer] => /professional/wp-admin/users.php?delete_count=18
    [action] => delete
    [new_role] => 
    [paged] => 1
    [users] => Array
        (
            [0] => 1
        )

    [action2] => -1
    [new_role2] => 
)

Why am I not getting users in my custom assign action?

Thanks!

Answer 1

You're handling the request incorrectly, load-users.php is not the correct hook

Instead, use handle_bulk_actions-users

add_filter( 'handle_bulk_actions-users', 'sanzeeb_bulk_action_handler_user', 10, 3 );

function sanzeeb_bulk_action_handler_user( $redirect, $action, $object_ids ) {

    // let's remove query args first
    $redirect = remove_query_arg( array( 'assign' ), $redirect );

    // do something for "Assign" bulk action
    if ( $doaction == 'assign' ) {
        // ...

Some other notes:

• These are all very generic names assign trigger_query_actions etc, prefix them e.g. sanzeeb_assign, otherwise you'll clash with other plugins
• Avoid $_REQUEST for security reasons, it's not just GET and POST, it's also COOKIE SESSION etc