产品目录用自定义文章类型还是 WooCommerce 商品：数据结构、查询和扩展的差别

add_action('init', function () {
    register_post_type('catalog_item', [
        'label' => '产品目录',
        'public' => true,
        'show_in_rest' => true,
        'has_archive' => true,
        'rewrite' => ['slug' => 'catalog', 'with_front' => false],
        'supports' => ['title', 'editor', 'thumbnail', 'excerpt', 'custom-fields'],
        'menu_icon' => 'dashicons-products',
    ]);

    register_taxonomy('catalog_category', ['catalog_item'], [
        'label' => '目录分类',
        'public' => true,
        'hierarchical' => true,
        'show_in_rest' => true,
        'rewrite' => ['slug' => 'catalog-category'],
    ]);

    register_taxonomy('catalog_brand', ['catalog_item'], [
        'label' => '品牌',
        'public' => true,
        'hierarchical' => false,
        'show_in_rest' => true,
        'rewrite' => ['slug' => 'catalog-brand'],
    ]);

    register_post_meta('catalog_item', 'catalog_model', [
        'type' => 'string',
        'single' => true,
        'show_in_rest' => true,
        'sanitize_callback' => 'sanitize_text_field',
        'auth_callback' => function () {
            return current_user_can('edit_posts');
        },
    ]);

    register_post_meta('catalog_item', 'catalog_power_w', [
        'type' => 'number',
        'single' => true,
        'show_in_rest' => true,
        'sanitize_callback' => function ($value) {
            return is_numeric($value) ? (float) $value : 0;
        },
        'auth_callback' => function () {
            return current_user_can('edit_posts');
        },
    ]);
});

$paged = max(1, get_query_var('paged') ?: get_query_var('page'));

$args = [
    'post_type' => 'catalog_item',
    'post_status' => 'publish',
    'posts_per_page' => 12,
    'paged' => $paged,
    'tax_query' => [
        'relation' => 'AND',
        [
            'taxonomy' => 'catalog_category',
            'field' => 'slug',
            'terms' => ['power-supply'],
        ],
    ],
    'meta_query' => [
        'relation' => 'AND',
        [
            'key' => 'catalog_power_w',
            'value' => [100, 500],
            'compare' => 'BETWEEN',
            'type' => 'NUMERIC',
        ],
    ],
    'orderby' => [
        'meta_value_num' => 'ASC',
        'title' => 'ASC',
    ],
    'meta_key' => 'catalog_power_w',
];

$q = new WP_Query($args);

if ($q->have_posts()) {
    while ($q->have_posts()) {
        $q->the_post();
        $model = get_post_meta(get_the_ID(), 'catalog_model', true);
        $power = get_post_meta(get_the_ID(), 'catalog_power_w', true);

        echo '<article>';
        the_title('<h2>', '</h2>');
        echo '<p>' . esc_html($model) . ' / ' . esc_html($power) . 'W</p>';
        the_excerpt();
        echo '</article>';
    }
    wp_reset_postdata();
}

$page = max(1, get_query_var('paged') ?: get_query_var('page'));

$products = wc_get_products([
    'status' => 'publish',
    'limit' => 12,
    'page' => $page,
    'category' => ['power-supply'],
    'stock_status' => 'instock',
    'orderby' => 'price',
    'order' => 'ASC',
    'return' => 'objects',
]);

foreach ($products as $product) {
    if (! $product instanceof WC_Product) {
        continue;
    }

    echo '<article>';
    echo '<h2><a href=\'' . esc_url($product->get_permalink()) . '\'>' . esc_html($product->get_name()) . '</a></h2>';
    echo wp_kses_post($product->get_price_html());
    echo '<p>' . esc_html($product->get_sku()) . '</p>';
    echo '</article>';
}

$product = new WC_Product_Simple();
$product->set_name('示例型号');
$product->set_status('publish');
$product->set_regular_price('199');
$product->set_sku('DEMO-001');
$product->save();