filtered-cats-QRh.php(檔案已創建)
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| 1 | + | function your_theme_enqueue_scripts() { | |
| 2 | + | wp_enqueue_script('jquery'); | |
| 3 | + | // Add here any other scripts you need to enqueue | |
| 4 | + | } | |
| 5 | + | ||
| 6 | + | add_action('wp_enqueue_scripts', 'your_theme_enqueue_scripts'); | |
| 7 | + | ||
| 8 | + | function load_filtered_cats() { | |
| 9 | + | // Security check | |
| 10 | + | if (!check_ajax_referer('load_cats_nonce', 'nonce', false)) { | |
| 11 | + | wp_send_json_error('Invalid nonce', 400); | |
| 12 | + | } | |
| 13 | + | ||
| 14 | + | $categoryId = isset($_POST['categoryId']) ? intval($_POST['categoryId']) : 0; | |
| 15 | + | ||
| 16 | + | $args = [ | |
| 17 | + | 'taxonomy' => 'product_cat', | |
| 18 | + | 'hide_empty' => false, | |
| 19 | + | // Include or exclude parent categories as needed | |
| 20 | + | ]; | |
| 21 | + | ||
| 22 | + | // Apply parent filtering only if a specific category ID is provided | |
| 23 | + | if ($categoryId > 0) { | |
| 24 | + | $args['parent'] = $categoryId; | |
| 25 | + | } else { | |
| 26 | + | // Exclude top-level categories if looking for all child categories initially | |
| 27 | + | // Remove the 'exclude' line if you also want top-level categories included initially | |
| 28 | + | $args['exclude'] = get_terms(['taxonomy' => 'product_cat', 'parent' => 0, 'fields' => 'ids']); | |
| 29 | + | } | |
| 30 | + | ||
| 31 | + | $categories = get_terms($args); | |
| 32 | + | $sorted_categories = []; | |
| 33 | + | ||
| 34 | + | // Sorting and grouping categories | |
| 35 | + | foreach ($categories as $category) { | |
| 36 | + | $products_in_category = new WP_Query([ | |
| 37 | + | 'post_type' => 'product', | |
| 38 | + | 'posts_per_page' => -1, | |
| 39 | + | 'tax_query' => [[ | |
| 40 | + | 'taxonomy' => 'product_cat', | |
| 41 | + | 'field' => 'id', | |
| 42 | + | 'terms' => $category->term_id, | |
| 43 | + | ]], | |
| 44 | + | 'meta_query' => [[ | |
| 45 | + | 'key' => '_stock_status', | |
| 46 | + | 'value' => 'instock', | |
| 47 | + | ]], | |
| 48 | + | ]); | |
| 49 | + | ||
| 50 | + | if ($products_in_category->have_posts()) { | |
| 51 | + | $first_letter = strtoupper(substr($category->name, 0, 1)); | |
| 52 | + | $sorted_categories[$first_letter][] = $category; | |
| 53 | + | } | |
| 54 | + | } | |
| 55 | + | ||
| 56 | + | // Sort categories within each group alphabetically | |
| 57 | + | foreach ($sorted_categories as &$categories_group) { | |
| 58 | + | usort($categories_group, function($a, $b) { | |
| 59 | + | return strcmp($a->name, $b->name); | |
| 60 | + | }); | |
| 61 | + | } | |
| 62 | + | ||
| 63 | + | // Sort groups by their starting letter | |
| 64 | + | ksort($sorted_categories); | |
| 65 | + | ||
| 66 | + | // Output the sorted and grouped categories | |
| 67 | + | foreach ($sorted_categories as $letter => $categories_group) { | |
| 68 | + | echo "<div class='category-group'><h2>" . $letter . "</h2><p class='category-count'>" . count($categories_group) . " marcas</p><hr>"; | |
| 69 | + | foreach ($categories_group as $category) { | |
| 70 | + | echo '<a href="' . get_term_link($category) . '" class="category-button">' . esc_html($category->name) . '</a>'; | |
| 71 | + | } | |
| 72 | + | echo "</div>"; // Close the category-group div | |
| 73 | + | } | |
| 74 | + | ||
| 75 | + | wp_die(); // Terminate AJAX request correctly | |
| 76 | + | } | |
| 77 | + | ||
| 78 | + | add_action('wp_ajax_load_filtered_cats', 'load_filtered_cats'); | |
| 79 | + | add_action('wp_ajax_nopriv_load_filtered_cats', 'load_filtered_cats'); | |
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