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In one of my template files, I am running the standard WP_Query and loop etc. This is not within the product archive etc, just a regular custom template.

<?php $args = array(
    'post_type' => 'product',
    'post_status' => 'publish',
    'posts_per_page' => -1,
    'orderby' => 'title',
    'order' => 'ASC',
    'meta_query' => $meta_query
); ?>

<?php $post_query = new WP_Query( $args ); ?>
        
        <?php if ( $post_query->have_posts() ) : ?>

                etc....

From my filters.php file, I want to hook into that WP_Query and grab the IDs returned. I suspect it's a pre_get_posts approach but I need it to be focusing on the WP_Query which I am running to get products. Elsewhere on the site are other WP_Query's being ran.

How can I hook into the currently running WP_Query for product post type and grab the IDs. I don't want to do this within the loop in the template file.

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  • What do you want to do with the IDs? With this kind of query you'd only be able to re-use the IDs after the query is used in the template. Jul 16, 2023 at 8:54

1 Answer 1

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The most efficient approach: Just run the query again wherever you need it.

Add this to the $args array: 'fields' => 'ids',

$post_query->posts will only be an array of product ids.

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