How to change a form's success message when a post is updated

Created by Phil Kurth, Modified on Thu, 28 Jul, 2022 at 2:30 PM by Phil Kurth

When using a form to manage posts, you may wish to change the success message if a post is updated. You may do so using a combination of hooks and passing data between them via the Advanced Forms `submission` array.

<?php

// First, hook into the post updated hook to capture desired data for a future hook to use.
// The data is stored on the AF()->submission array which is accessible anywhere.  
add_action( 'af/form/editing/post_updated', function ( $post, $form, $args ) {
  // Only run on a specific form.
  if ( $form['key'] !== 'YOUR_FORM_KEY_HERE' ) {
    return;
  }
  
  // Be sure to replace `xyz` with your own custom prefix to avoid potential future issues.
  AF()->submission['xyz_post_id_updated'] = $post->ID;
}, 10, 3 );

// Second, hook into the success message filter and check for our custom data key. If available,
// modify the success message.
add_filter( 'af/form/success_message', function ( $success_message, $form, $args ) {
  // If we don't have our custom key available, return default success message.
  if ( empty( AF()->submission['xyz_post_id_updated'] ) ) {
    return $success_message;
  }

  // Get the stored post object
  $post_id = AF()->submission['xyz_post_id_updated'];
  return "Post $post_id updated.";
}, 10, 3 );