Viewing changes in Gutenberg content

I ended up just doing it myself. Added a metabox that shows all content changes in Gutenberg, but now I’m noticing that approving changes on a revision draft clears ALL revision history for that post??

I guess I have to give up on this plugin. Poor support response for a paid plugin (I messaged over a month ago) and nothing seems to work for a real approval-and-audit-trail case. What a bummer.

Here’s my solution for displaying content changes (if they exist) in a metabox under the Gutenberg editor. Hopefully it helps someone else.

// ADD META BOX FOR CONTENT DIFFERENCES
function content_diff_meta_box() {
  global $pagenow;
  global $post;

  $old_post_id = get_post_meta($post->ID, 'linked_post_id', true);

  if ($pagenow === 'post.php' && $old_post_id) {
    // We're reviewing a revision
    $old_post_content = get_the_content(null, false, $old_post_id);
    $new_post_content = $post->post_content;
    $text_diff = wp_text_diff($old_post_content, $new_post_content);

    if ($text_diff) {
      // Differences exist
      add_meta_box(
        'content-diff',
        'Content Updates',
        'content_diff_meta_box_content',
        null,
        'normal',
        'high',
        array(
          'text_diff' => $text_diff
        )
      );
    }
  }
}
add_action('add_meta_boxes', 'content_diff_meta_box');

// POPULATE METABOX WITH CONTENT DIFFERENCES
function content_diff_meta_box_content($post, $vars) {
  $text_diff = $vars['args']['text_diff'] ?: null;

  if (!$text_diff) {
    // no content changes
    echo "<style type='text/css'>
            #content-diff {
              display: none;
            }
          </style>";
  }
  else {
    // content changes - show diff table
    echo $text_diff;
    echo "<style type='text/css'>
            table.diff tbody tr td {
              width: 50% !important;
            }
          </style>";
  }
}

• This reply was modified 4 years, 8 months ago by martinparets.
• This reply was modified 4 years, 8 months ago by martinparets.
• This reply was modified 4 years, 8 months ago by martinparets.

@themastercut Ping 🙂