Patch for fixing a notice

polylang-1.6.5

I got a notice when I tried to use the function pll_the_languages(array('raw' => true)) within the hook wp: Notice: Undefined property: WP_Query::$queried_object_id in /.../wp-includes/query.php on line 3960.

I patched the file frontend/frontend-links.php to use the get_queried_object_id function instead of directly trying to access the property like this: $wp_query->queried_object_id.

The patch

diff --git a/frontend/frontend-links.php b/frontend/frontend-links.php
index f5c7e78..89f3b40 100644
--- a/frontend/frontend-links.php
+++ b/frontend/frontend-links.php
@@ -231,17 +231,18 @@ class PLL_Frontend_Links extends PLL_Links {
                global $wp_query;
                $qv = $wp_query->query_vars;
                $hide = $this->options['default_lang'] == $language->slug && $this->options['hide_default'];
+               $queried_object_id = $wp_query->get_queried_object_id();

                // post and attachment
-               if (is_single() && ($this->options['media_support'] || !is_attachment()) && ($id = $this->model->get_post($wp_query->queried_object_id, $language)) && $this->current_user_can_read($id))
+               if (is_single() && ($this->options['media_support'] || !is_attachment()) && ($id = $this->model->get_post($queried_object_id, $language)) && $this->current_user_can_read($id))
                        $url = get_permalink($id);

                // page for posts
                // FIXME the last test should be useless now since I test is_posts_page
-               elseif ($wp_query->is_posts_page && !empty($wp_query->queried_object_id) && ($id = $this->model->get_post($wp_query->queried_object_id, $language)) && $id == $this->model->get_post($this->page_for_posts, $language))
+               elseif ($wp_query->is_posts_page && !empty($queried_object_id) && ($id = $this->model->get_post($queried_object_id, $language)) && $id == $this->model->get_post($this->page_for_posts, $language))
                        $url = get_permalink($id);

-               elseif (is_page() && ($id = $this->model->get_post($wp_query->queried_object_id, $language)) && $this->current_user_can_read($id))
+               elseif (is_page() && ($id = $this->model->get_post($queried_object_id, $language)) && $this->current_user_can_read($id))
                        $url = $hide && $id == $this->model->get_post($this->page_on_front, $language) ? $this->links_model->home : get_page_link($id);

                elseif (!is_tax('post_format') && !is_tax('language') && (is_category() || is_tag() || is_tax()) ) {

Thanks

https://www.ads-software.com/plugins/polylang/