In page-images.php template I have created this code which displays a list of posts which belong to a category and order them by meta value. So basically it is like a category page, generally nothing special except that each post isn't shown as a single featured image but with all its images like this: enter image description here This code works but I ask myself how can it be more optimized? Since it has nested WP_Query. Page generates 100 queries and it should be a paginated list like this for each category and for many variations (depending on meta key).

$query = new WP_Query( array(
    'posts_per_page' => 25, 
    'cat' => 102, // Category ID
    'meta_key' => 'rod', // Order by meta field value
    'orderby'   => 'meta_value',
    'order' => 'ASC',
    'post_status' => 'publish',
    'meta_query' => array( // Meta value should exists
                'key' => 'rod',
                'value'   => array(''),
                'compare' => 'NOT IN'

// Inside loop for each post get its images
if ($query->have_posts() ) {
    while($query->have_posts()) {

        $args = array(
            'posts_per_page' => -1, 
            'post_type' => 'attachment',
            'post_mime_type' => 'image',
            'post_status' => 'any', 
            'post_parent' => get_the_ID(),
            'order' => 'DESC'
        $attachments = new WP_Query($args);

        <div class="col-md-10">
            <?php // each loop has a title, meta field and images
            <h2><?php echo get_the_title($key); ?></h2>
            <p><?php the_field('latinsko_ime', $key); ?></p>

            <div class="row">
                <?php while($attachments->have_posts()) : $attachments->the_post(); ?>
                <div class="col-md-3">

                    <a href="<?php the_permalink(); ?>">
                        <?php echo wp_get_attachment_image(get_the_ID(), 'category__loop', false, array('class' => 'img-fluid')); ?>

                <?php endwhile; ?>




I have tried removing nested WP_Query and for each loop retrieve images like this $gallery = get_post_gallery_images( get_the_ID() ); but in this case I have even more queries (127)


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.