148 lines
4.2 KiB
PHP
148 lines
4.2 KiB
PHP
<?php
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/**
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* Plugin Name: Resource Filter
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* Description: Adds filtering for the 'resource' post type by 'resource_type' and 'resource_subject'.
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* Version: 1.0.0
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* Author: Keith Solomon
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*/
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if (!defined('ABSPATH')) { exit; } // Prevent direct access
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require_once plugin_dir_path(__FILE__) . 'includes/template-loader.php';
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class ResourceFilterPlugin {
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public function __construct() {
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add_shortcode('resource_filter', [$this, 'renderFilterForm']);
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add_action('wp_enqueue_scripts', [$this, 'enqueueScripts']);
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add_action('wp_ajax_filter_resources', [$this, 'filterResources']);
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add_action('wp_ajax_nopriv_filter_resources', [$this, 'filterResources']);
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}
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public function enqueueScripts() {
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// Load script only if the shortcode is present on the page
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if (!is_admin() && has_shortcode(get_post_field('post_content', get_the_ID()), 'resource_filter')) {
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wp_enqueue_style('resource-filter-style', plugins_url('assets/style.css', __FILE__));
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wp_enqueue_script('resource-filter-script', plugins_url('assets/script.js', __FILE__), ['jquery'], null, true);
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wp_localize_script('resource-filter-script', 'resourceFilterAjax', [
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'ajaxurl' => admin_url('admin-ajax.php'),
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'nonce' => wp_create_nonce('resource_filter_nonce')
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]);
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}
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}
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public function renderFilterForm() {
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ob_start();
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$template = rfGetTemplate('filter-form.php');
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if ($template) {
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include_once $template;
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} else {
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echo '<p>Error: Template not found.</p>';
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}
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$total_resources = wp_count_posts('resource')->publish; // Get the count of published resources
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?>
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<div id="resource-filter-summary">
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<strong>Showing <span id="result-count"><?php echo $total_resources; ?></span> resources</strong>
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<p><strong>Filters applied:</strong> <span id="applied-filters">None</span></p>
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</div>
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<div id="resource-results">
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<?php $this->loadResources(); ?>
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</div>
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<?php
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return ob_get_clean();
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}
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public function filterResources() {
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check_ajax_referer('resource_filter_nonce', 'nonce');
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$query_args = [
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'post_type' => 'resource',
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'posts_per_page' => -1,
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'tax_query' => [],
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's' => isset($_POST['search']) ? sanitize_text_field($_POST['search']) : '',
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];
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$tax_query = [];
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if (!empty($_POST['resource_type'])) {
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$query_args['tax_query'][] = [
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'taxonomy' => 'resource_type',
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'field' => 'slug',
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'terms' => array_map('sanitize_text_field', $_POST['resource_type']),
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'operator' => 'IN'
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];
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}
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if (!empty($_POST['resource_subject'])) {
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$query_args['tax_query'][] = [
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'taxonomy' => 'resource_subject',
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'field' => 'slug',
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'terms' => array_map('sanitize_text_field', $_POST['resource_subject']),
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'operator' => 'IN'
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];
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}
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if (!empty($tax_query)) {
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$query_args['tax_query'] = [
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'relation' => 'AND', // Both filters must match
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...$tax_query
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];
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}
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$query = new WP_Query($query_args);
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ob_start();
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$resources = $query->posts;
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$template = rfGetTemplate('resource-results.php');
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if ($template) {
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include_once $template;
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} else {
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echo '<p>Error: Results template not found.</p>';
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}
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// Prepare response JSON
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$response = [
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'count' => $query->found_posts,
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'filters' => [
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'search' => isset($_POST['search']) ? sanitize_text_field($_POST['search']) : '',
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'resource_type' => !empty($_POST['resource_type']) ? sanitize_text_field($_POST['resource_type']) : '',
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'resource_subject' => !empty($_POST['resource_subject']) ? sanitize_text_field($_POST['resource_subject']) : ''
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],
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'html' => ob_get_clean()
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];
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echo json_encode($response);
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wp_die();
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}
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public function loadResources() {
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$query_args = [
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'post_type' => 'resource',
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'posts_per_page' => -1
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];
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$query = new WP_Query($query_args);
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$resources = $query->posts;
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$template = rfGetTemplate('resource-results.php');
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if ($template) {
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include_once $template;
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} else {
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echo '<p>Error: Results template not found.</p>';
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}
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wp_reset_postdata();
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}
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}
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new ResourceFilterPlugin();
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