Ajax Pagination Issue

Moderator note: @cybertech537

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To answer your question, we here would need to know your programming. Can you post the relevant source codes here? If they are very extensive, you can also make them available at https://gist.github.com or similar.

page template named “property.php”

<form id="property-filter" class="mb-10">
            <select name="property_type" id="property-type">
                <option value="">Select Property Type</option>
                <?php
                $property_types = get_terms('property-type');
                foreach ($property_types as $type) {
                    echo '<option value="' . $type->slug . '">' . $type->name . '</option>';
                }
                ?>
            </select>

            <select name="property_location" id="property-location">
                <option value="">Select Property Location</option>
                <?php
                $property_locations = get_terms('property-location');
                foreach ($property_locations as $location) {
                    echo '<option value="' . $location->slug . '">' . $location->name . '</option>';
                }
                ?>
            </select>

            <input type="text" name="search" id="property-search" placeholder="Search...">
            <input type="submit" value="Filter" class="btn btn-primary cursor-pointer">
        </form>

        <?php
        $paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
        $property = new WP_Query(array(
            'post_type'     => 'property',
            'posts_per_page'=> 3,
            'paged' => $paged
        ));
        if( $property -> have_posts() ){
        ?>
        <div class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-6" id="property-results">
            <?php 
            while( $property -> have_posts() ){
                $property -> the_post();
                get_template_part( 'template-parts/property-card' );
            }
            ?>
        </div>
        <?php 
        echo '<div class="pagination-container pagination mt-10 text-center">'. paginate_links(array(
            'total' => $property->max_num_pages,
            'current' => max(1, $paged)
        )).'</div>';
        }
        wp_reset_postdata();
        ?>

functions.php

// include assets
function wptheme_assets(){

    wp_enqueue_script('property-ajax', get_template_directory_uri() . '/assets/js/property-ajax.js', array('jquery'), '1.0', true);
    wp_localize_script('property-ajax', 'property_ajax_params', array(
        'ajax_url' => admin_url('admin-ajax.php'),
        'nonce' => wp_create_nonce('property-nonce')
    ));

}
add_action( 'wp_enqueue_scripts', 'wptheme_assets' );

// ajax filter
add_action('wp_ajax_filter_properties', 'filter_properties');
add_action('wp_ajax_nopriv_filter_properties', 'filter_properties');
function filter_properties() {
    check_ajax_referer('property-nonce', 'nonce');

    $paged = (get_query_var('paged')) ? get_query_var('paged') : 1;

    $args = array(
        'post_type' => 'property',
        'posts_per_page' => 3,
        'paged' => $paged,
        'tax_query' => array(
            'relation' => 'AND',
        ),
    );

    if (isset($_GET['property_type']) && $_GET['property_type'] !== '') {
        $args['tax_query'][] = array(
            'taxonomy' => 'property-type',
            'field' => 'slug',
            'terms' => $_GET['property_type'],
        );
    }

    if (isset($_GET['property_location']) && $_GET['property_location'] !== '') {
        $args['tax_query'][] = array(
            'taxonomy' => 'property-location',
            'field' => 'slug',
            'terms' => $_GET['property_location'],
        );
    }

    if (isset($_GET['search']) && $_GET['search'] !== '') {
        $args['s'] = $_GET['search'];
    }

    $properties = new WP_Query($args);

    if ($properties->have_posts()) {
        while ($properties->have_posts()) {
            $properties->the_post();
            get_template_part( 'template-parts/property-card' );
        }
        // Pagination output
        echo '<div class="pagination">';
        echo paginate_links(array(
            'total' => $properties->max_num_pages,
            'current' => max(1, $paged),
        ));
        echo '</div>';
    } else {
        echo 'No properties found';
    }

    wp_reset_postdata();
    wp_die();
}

property-ajax.js

jQuery(document).ready(function($) {

    function filterProperties(page) {

        var filter = $('#property-filter');

        var ajaxurl = property_ajax_params.ajax_url;

        var data = filter.serialize();

        if (page !== undefined) {

            data += '&paged=' + page;

        }

        $.ajax({

            url: ajaxurl,

            data: data + '&action=filter_properties&nonce=' + property_ajax_params.nonce,

            type: 'GET',

            beforeSend: function(xhr) {

                // You can add loading indicators here

            },

            success: function(response) {

                $('#property-results').html(response);

                $('.pagination-container').html(''); // Clear pagination container

            },

            error: function(errorThrown) {

                console.log(errorThrown);

            }

        });

    }

    $('#property-filter select').change(function(e) {

        e.preventDefault();

        filterProperties();

    });

    $('#property-filter').submit(function(e) {

        e.preventDefault();

        filterProperties();

    });

    $(document).on('click', '.pagination a', function(e) {

        e.preventDefault();

        var pageWithSlash = $(this).attr('href').split('/page/')[1];

        var page = pageWithSlash.split('/')[0];

        filterProperties(page);

        console.log(page);

    });

});

I recommend not using “paged” query var to paginate custom queries. It too often gets mixed up with the main query’s “paged” query var. Instead create your own custom pagination query var that is distinct from any WP query vars. It’s usually beneficial to white list your pagination query var through the “query_vars” filter.