在Woocommerce中为特定产品类别使用自定义单一产品模板

I'm trying to use a custom page for only one of the products in the woocommerce shop. I've been trying to apply the attached function but without success (which code is coming from this answer).

I have a created a copy of the single-product.php file in my /woocommerce folder with some added code, but the single product view only shows the "standard" single-product-php and not my single-product-mock.php file.

And the product does have the product category "custom".

add_filter( 'template_include', 'so_43621049_template_include', 10 );

function so_43621049_template_include( $template ) {
  if ( is_singular('product') && (has_term( 'custom', 'product_cat')) ) {
    $template = get_stylesheet_directory() . '/woocommerce/single-product-mock.php';
  } 
  retur

The code that you are using works just perfectly. Your code is a bit incomplete too:

add_filter( 'template_include', 'custom_single_product_template_include', 50, 1 );
function custom_single_product_template_include( $template ) {
    if ( is_singular('product') && (has_term( 'custom', 'product_cat')) ) {
        $template = get_stylesheet_directory() . '/woocommerce/single-product-mock.php';
    } 
    return $template;
}

So the problem could be related to:

1. The location of that custom template, that should be in a 'woocommerce' folder inside your active child theme (or inside your active theme).
2. Woocommerce support need to be enable for your theme.

Solutions:

1. be sure that inside your active child theme (or active theme) there is a "woocommerce" folder and add inside it your custom template single-product-mock.php
   (but not inside a "templates" sub-folder)
2. To check Woocommerce support is enabled:
   • Copy the default single-product.php template inside the "woocommerce" folder located in your active child theme (or active theme)
   • Go in backend Woocommerce > Status … and you will normally see in "templates" section (at the end of this page):
     
     With an active child-theme:
     With an active theme:
     
   • If is not enable, you should search and look to the related Woocommerce documentation.

One of those, should solve your issue.