Prevent litespeed cache from purging other posts

please try

if (class_exists('LiteSpeed\API')) { 
      remove_action('litespeed_purge_post', array(LiteSpeed\API::get_instance(), 'purge_post'));
      add_action('litespeed_purge_post', function($post_id) {
          @header("X-LiteSpeed-Purge: " . LSWCP_TAG_PREFIX . "_Po." . $post_id);
      });
}

put it at your theme’s functions.php

The code didn’t work.

It seems everytime a post gets updated the next and previous posts by date will get purged too which is strange.

We are updating more than 30 posts per day, so that means about 60 additional posts gets purged too which is a problem for us.

emmm , okay , it’s not easy to modify plugin’s function without modify the source , I will see if I can come up something.

I have worked code to suppress edit exsiting post to only purge itself

what about the new publish post ? if you only purge post id itself, elsewhere like home , category won’t show the new post

I definitely need to ensure that the front page and category pages are purged as well. However, I would like to avoid purging any other posts while I’m in the process of editing or creating a new post.

add_action('wp_loaded', function() {
    $request_uri = $_SERVER['REQUEST_URI'];
    
    function add_back_purge_header($post_id = null) {
    ob_start(function($buffer) use ($post_id) {
        if ($post_id) {
            $categories = get_the_category($post_id);
            $category_list = [];

            if (!empty($categories)) {
                foreach ($categories as $category) {
                    $category_list[] = LSWCP_TAG_PREFIX . "_T." . $category->term_id;
                }
            }

            $category_tag = implode(',', $category_list);
            @header("X-LiteSpeed-Purge: "  . LSWCP_TAG_PREFIX . "_H," . LSWCP_TAG_PREFIX . "_FD," . LSWCP_TAG_PREFIX . "_Po." . $post_id . ( $category_tag ? ", " . $category_tag : ''));
        } else {
            @header('X-LiteSpeed-Purge: nothing');
        }
        return $buffer;
    });
}


   # if (isset($_POST['_wp_http_referer']) && $_POST['_wp_http_referer'] !== '/wp-admin/post-new.php') {
#  put back this if to allow normal purge on publish new post action
        $parsed_url = parse_url($request_uri);

        if (isset($parsed_url['path']) && strpos($parsed_url['path'], '/wp-admin/post.php') !== false) {
            if (isset($parsed_url['query'])) {
                parse_str($parsed_url['query'], $query_params);
                if (isset($query_params['post'], $query_params['action']) && $query_params['action'] === 'edit') {
                    $post_id = intval($query_params['post']);
                    add_back_purge_header($post_id);
                }
            }
        }
  #  }
    if (strpos($request_uri, "/wp-json/wp/v2/posts") !== false) {
        add_back_purge_header();
    }
});

okay , try this , it should suppress normal purge action , and when publish/edit a post , purge post itself , assigned categories and homepage.

I added the code to the top of my functions.php, but unfortunately, it still doesn’t work.

After updating a post, the previous and next post changes from x-litespeed-cache: hit to x-litespeed-cache: miss on the same browser session when refreshing it.

• This reply was modified 1 month ago by David.

is that post post ? or other post type ?

I tested my code on wp with theme 2021 on normal post it works

The other posts of course, same post type but different posts (i’m testing the example i provided in the beginning of this). everytime post 324654? get’s updated, post 46035 and 315548 will get purged too.

If it is working for you then there is maybe something wrong in my template, i will try to find the issue and check the logs again

• This reply was modified 1 month ago by David.

I have tested it again, and it seems to work now.

Thank you

meanwhile , please try my code on the default wp + default theme (like 2021 or something) , and check if it works as you expected