我试图更新的类别列表/循环在WooCommerce替换类别缩略图与最新的产品在各自的类别中的缩略图。
虽然我可以列出每个类别的最新产品，并在图片下方显示类别名称，但我无法将其链接到类别页面，但我认为在测试页面上实现这一点已经走了一半。这是在一个测试页面上运行，虽然我希望它在商店登录页面上工作。
出于某种原因，我无法将其显示为常规的WooCommerce产品网格。所有的产品/类别只是堆栈，即使我已经复制了WooCommerce类。
这是代码。我走了很长的路吗？有没有更简单的方法来实现这一点？
<?php
if (is_page( 2295 )){ ?>
//open
<div class='woocommerce'>
<?php
//parameters for the function
$args = array(
'number' => $number,
'orderby' => 'title',
'order' => 'ASC',
'hide_empty' => $hide_empty,
'include' => $ids
);
//fetch the product categories
$product_categories = get_terms( 'product_cat', $args );
//how many categories
$count = count($product_categories);
// Check categories exist
if ( $count > 0 ){
//loop through and minipulate
foreach ( $product_categories as $product_category ) {
//parameters for the query
$args = array(
'posts_per_page' => 1,
'tax_query' => array(
'relation' => 'AND',
array(
'taxonomy' => 'product_cat',
'field' => 'slug',
'terms' => $product_category->slug
)
),
'post_type' => 'product',
'orderby' => 'title,'
);
//run the query with the above arguments
$products = new WP_Query( $args );
//open the list with woocommerce class
echo "<ul class='products columns-4'>";
//list latest products of each category
while ( $products->have_posts() ) {
$products->the_post();
?>
<li class="product-category product">
<a href="<?php get_site_url() ?>/product-category/<?php echo $product_category->slug; ?>">
<?php the_post_thumbnail('shop_catalog'); ?>
<?php echo"<h2 class'woocommerce-loop-category__title'>" . $product_category->name . "</h2>"; ?>
</a>
</li>
<?php
}
echo "</ul>";
}
}?>
</div>
<?php }
?>
这方面的任何帮助都会让人大吃一惊
在活动主题的函数中添加以下代码段。php实现上述功能-
function modify_woocommerce_before_shop_loop() {
remove_action( 'woocommerce_before_subcategory_title', 'woocommerce_subcategory_thumbnail', 10 );
add_action( 'woocommerce_before_subcategory_title', 'change_woocommerce_subcategory_thumbnail', 10 );
}
add_action( 'woocommerce_before_shop_loop', 'modify_woocommerce_before_shop_loop' );
function change_woocommerce_subcategory_thumbnail( $category ) {
global $wpdb;
$small_thumbnail_size = apply_filters( 'subcategory_archive_thumbnail_size', 'woocommerce_thumbnail' );
$dimensions = wc_get_image_size( $small_thumbnail_size );
// Get the latest product from the category
$product = $wpdb->get_row("SELECT
ID FROM $wpdb->posts p
JOIN $wpdb->term_relationships tr ON (p.ID = tr.object_id)
JOIN $wpdb->term_taxonomy tt ON (tr.term_taxonomy_id = tt.term_taxonomy_id)
JOIN $wpdb->terms t ON (tt.term_id = t.term_id)
WHERE p.post_type='product'
AND p.post_status = 'publish'
AND tt.taxonomy = 'product_cat'
AND t.term_id = $category->term_id
ORDER BY post_date DESC LIMIT 1");
if( $product ) {
$thumbnail_id = get_post_meta( $product->ID, '_thumbnail_id', true );
}else {
$thumbnail_id = get_term_meta( $category->term_id, 'thumbnail_id', true );
}
if ( $thumbnail_id ) {
$image = wp_get_attachment_image_src( $thumbnail_id, $small_thumbnail_size );
$image = $image[0];
$image_srcset = function_exists( 'wp_get_attachment_image_srcset' ) ? wp_get_attachment_image_srcset( $thumbnail_id, $small_thumbnail_size ) : false;
$image_sizes = function_exists( 'wp_get_attachment_image_sizes' ) ? wp_get_attachment_image_sizes( $thumbnail_id, $small_thumbnail_size ) : false;
} else {
$image = wc_placeholder_img_src();
$image_srcset = false;
$image_sizes = false;
}
if ( $image ) {
// Prevent esc_url from breaking spaces in urls for image embeds.
// Ref: https://core.trac.wordpress.org/ticket/23605.
$image = str_replace( ' ', '%20', $image );
// Add responsive image markup if available.
if ( $image_srcset && $image_sizes ) {
echo '<img src="' . esc_url( $image ) . '" alt="' . esc_attr( $category->name ) . '" width="' . esc_attr( $dimensions['width'] ) . '" height="' . esc_attr( $dimensions['height'] ) . '" srcset="' . esc_attr( $image_srcset ) . '" sizes="' . esc_attr( $image_sizes ) . '" />';
} else {
echo '<img src="' . esc_url( $image ) . '" alt="' . esc_attr( $category->name ) . '" width="' . esc_attr( $dimensions['width'] ) . '" height="' . esc_attr( $dimensions['height'] ) . '" />';
}
}
}
如果我也想检查产品是否有库存，我已经尝试过将查询升级到这样的东西，尽管看起来已经打破了一些东西：
$product = $wpdb->get_row("SELECT
ID FROM $wpdb->posts p
JOIN $wpdb->term_relationships tr ON (p.ID = tr.object_id)
JOIN $wpdb->term_taxonomy tt ON (tr.term_taxonomy_id = tt.term_taxonomy_id)
JOIN $wpdb->terms t ON (tt.term_id = t.term_id)
JOIN $wpdb->wp_postmeta pm ON (p.ID = pm.post_id)
WHERE p.post_type='product'
AND p.post_status = 'publish'
AND tt.taxonomy = 'product_cat'
AND t.term_id = $category->term_id
AND pm.meta_value = 'instock'
ORDER BY post_date DESC LIMIT 1");
