Fatal Error in cleanCommentRelatedRows function

Hello, wpDiscuz team!

We are having an issue with your plugin on one of the sites we support.

This is the error we get in the debug log:

PHP Fatal error:  Uncaught ArgumentCountError: Too few arguments to function WpdiscuzHelperOptimization::cleanCommentRelatedRows(), 1 passed in /wordpress-versions/5.7.3/wp-includes/class-wp-hook.php on line 292 and exactly 2 expected in /dom21465/wp-content/plugins/wpdiscuz/utils/class.WpdiscuzHelperOptimization.php:153
Stack trace:
#0 /wordpress-versions/5.7.3/wp-includes/class-wp-hook.php(292): WpdiscuzHelperOptimization->cleanCommentRelatedRows('982131')
#1 /wordpress-versions/5.7.3/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters('', Array)
#2 /wordpress-versions/5.7.3/wp-includes/plugin.php(484): WP_Hook->do_action(Array)
#3 /dom21465/wp-content/plugins/akismet/class.akismet.php(421): do_action('deleted_comment', '982131')
#4 /wordpress-versions/5.7.3/wp-includes/class-wp-hook.php(292): Akismet::delete_old_comments()
#5 /wordpress-versions/5.7.3/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters('', Array)
#6 /wordpress-versions/5.7.3/wp-includes/plugin.php(551): WP_Hook->do_action(Array)
#7 /wordpress- in /dom21465/wp-content/plugins/wpdiscuz/utils/class.WpdiscuzHelperOptimization.php on line 153

I investigated more about this and it seems that the function cleanCommentRelatedRows is passed just the first argument instead of both.
That function is hooked to the “deleted_comment” action and expects two arguments to be passed to it, and then uses them without first checking if they exist. Thus, when Akismet does the “deleted_comment” action and passes just the first argument cleanCommentRelatedRows() throws a Fatal.

This is my proposed fix:

public function cleanCommentRelatedRows($commentId, $comment) {
     $this->dbManager->deleteSubscriptions($commentId);
     $this->dbManager->deleteVotes($commentId);
     if ( ! empty( $comment->comment_post_ID ) ) {
         $this->cleanPostCache($comment->comment_post_ID);
      }
}

• This topic was modified 3 years, 6 months ago by Neycho Kalaydzhiev.