How to use comments_pre_query filter in WordPress

To use the comments_pre_query filter, you’ll need to register it using add_filter. You can add this code to your theme’s functions.php file or, even better, create a custom WordPress Plugin. This way, nothing breaks when you update your theme. At WePlugins, we always recommend creating a custom plugin to keep everything neat and tidy.

Below are the parameters you need to be familiar with:

• $comment_data: (array|int|null) Return an array of comment data to short-circuit WP’s comment query, the comment count as an integer if $this->query_vars['count'] is set, or null to allow WP to run its normal queries.
• $query: (WP_Comment_Query) The WP_Comment_Query instance, passed by reference.

Example 1: Basic Usage

Here’s a basic example of using the comments_pre_query filter.

    function weplugins_modify_comments_pre_query_defaults($comment_data, $query) { 
        // Update the $comment_data variable according to your website requirements.
        return $comment_data; 
    }
    // add the filter
    add_filter( "comments_pre_query", "weplugins_modify_comments_pre_query_defaults", 10, 2 );
    

Example 2: Removing a Hook Callback

If you need to remove a hook callback, here’s how you can do it.

    remove_filter( "comments_pre_query", "weplugins_modify_comments_pre_query_defaults", 10, 2 );
    

Make sure to provide the same callback function name, priority, and number of arguments when removing the hook callback.

Example 3: Custom Modification

Want to conditionally modify $comment_data? Here’s a quick example.

    function weplugins_custom_modify_comments($comment_data, $query) { 
        if ($query->query_vars['some_condition']) {
            // Modify $comment_data as needed
        }
        return $comment_data; 
    }
    add_filter( "comments_pre_query", "weplugins_custom_modify_comments", 10, 2 );
    

If you’re having any trouble using this hook or need customizations, don’t hesitate to reach out to us. Our team is here to help you out! Visit our Contact Us page for assistance.