I tweaked your code to make sure the $email was defined before attempting to process. I stop where the problem may be. If you follow all the if and else code, the “continue”resident when an email address is NOT a part of a particular group (subscriber, admin, customer etc) will skip the processing and move onto the next email. Thus your call may not be called and thus you will not get a result back.
I also added some important filters to your form entry at the top of the code snippet.
The only other path, is if the email is not defined.
public function bulk_add_users()
{
if ( isset( $_GET['action'] ) && 'bulk-add-users' === $_GET['action'] && isset( $_GET['group-id'] ) ) {
$group_id = sanitize_text_field(absint( $_GET['group-id']) );
$first_names = sanitize_text_field($_REQUEST['first_name']);
$last_names = sanitize_text_field($_REQUEST['last_name']);
$emails = filter_var($_REQUEST['email'], FILTER_VALIDATE_EMAIL);
$error_results = [];
$insert_results = [];
if ( $emails )
{
$role = apply_filters( 'uo-groups-user-role', get_option( 'default_role', 'subscriber' ) );
foreach ( $emails as $k => $email )
{
if ( ! empty( $email ) )
{
if ( is_email( $email ) )
{
$first = $first_names[ $k ];
$last = $last_names[ $k ];
$email = sanitize_email( $email );
$is_existing = email_exists( $email );
if ( is_numeric( $is_existing ) )
{
$user_id = $is_existing;
$user_groups = learndash_get_users_group_ids( $user_id, true );
// THE POTENTIAL SKIP IS HERE. IF THE EMAIL IS NOT IN THE GROUP
if ( in_array( $group_id, $user_groups ) )
{
$error_results[] = sprintf( __( 'Line #%d: %s is existing user of group.', 'uncanny-learndash-groups' ), $k + 1, $email );
//*************IF YOU CONTINUE HERE, IT IS POSSIBLE TO NEVER REACH YOUR CODE
continue;
} // if ( in_array( $group_id, $user_groups )
//-------------------------------------
// Go here only if the email is in the group
$user_data = array(
'user_email' => $email,
'user_id' => $user_id,
'first_name' => $first,
'last_name' => $last,
'role' => $role,
);
if ( isset( $user_data['first_name'] ) && ! $is_existing )
update_user_meta( $user_id, 'first_name', $user_data['first_name'] );
if ( isset( $user_data['last_name'] ) && ! $is_existing )
update_user_meta( $user_id, 'last_name', $user_data['last_name'] );
$restApi = new RestApiEndPoints();
$restApi->add_existing_user( $user_data, false, $group_id, 0, 'not redeemed', false );
} // if ( is_numeric( $is_existing ) )
else
{
$user_data = array(
'user_login' => $email,
'user_email' => $email,
'first_name' => $first,
'last_name' => $last,
'role' => $role,
'group_id' => $group_id,
);
$restApi = new RestApiEndPoints();
$restApi->add_invite_user( $user_data, false, false, false );
} // if ( is_numeric( $is_existing ) )
$insert_results[] = sprintf( __( '%s added & invited successfully.', 'uncanny-learndash-groups' ), $email );
//------------YOUR ADDED CODE
// Not ever reached on a continue or if the email is not defined in the form
global $wpdb;
$user_id_for_um_groups = get_user_by( 'email', $email );
$current_group_id_for_um_groups = $wpdb->get_var("SELECT ID FROM wpso_posts WHERE post_excerpt = $group_id");
$current_user_id_for_um_groups = get_current_user_id();
$wpdb->insert( 'wpso_um_groups_members', array(
'group_id' => $current_group_id_for_um_groups,
'user_id1' => $user_id_for_um_groups,
'user_id2' => $current_user_id_for_um_groups,
'status' => 'approved',
'role' => 'member') );
//----------- YOUR END OF ADDED CODE
}
else
$error_results[] = sprintf( __( 'Line #%d: Email (%s) not correct.', 'uncanny-learndash-groups' ), $k + 1, $email );
} // if ( is_email( $email ) )
} // if ( ! empty( $email ) )
} // foreach ( $emails as $k => $email )
} // if ( $emails )
.............................
} // public function bulk_add_users()