• photosjob

• July 24, 2019 at 9:15 pm

Add an ACF e-mail field to your frontend form and use code below to map it to the author email field (where field_xxx should be replaced with your unique ACF-email field number):

function my_acf_save_post( $post_id ) {
  // bail early if no ACF data
  if( empty($_POST['acf']) ) {
    return;
  }

  // bail early if editing in admin
  if( is_admin() ) {
    return;
  }

  if( $_POST['post_id'] != 'new' ) {

    $emailField = $_POST['acf']['field_xxx'];
    $wp_user_id = str_replace("user_", "", $post_id);

    if (isset($emailField)) {
      if (email_exists( $emailField )){
        // Email exists.
        update_field('field_5d1235aa4f58c', get_the_author_meta('user_email',$wp_user_id), $post_id);
      } else {
        $args = array(
          'ID'         => $wp_user_id,
          'user_email' => esc_attr( $emailField )
        );
        wp_update_user( $args );
      }
    }
  }

  // return the ID
  return $post_id;
}
add_action('acf/save_post', 'my_acf_save_post', 20);