Hide product price and disable add to cart for specific product categories in Woocommerce

Question

I'm looking for the right code that hides the prices for some specific categories in Woocommerce.

I already have the code to hide the prices on de single product page:

add_action( 'wp', 'remove_prices_based_on_category' );
function remove_prices_based_on_category() {
    // On product single pages 
    if ( is_product() ) {
        remove_product_price( get_the_ID() );
    }
}

function return_custom_price( $price, $instance ) {
    $price = '<span style="color:red; font-size:12px;">Call our office <strong>516.695.3110</strong> for prices.</span>';
    return $price; 
}

add_action( 'woocommerce_before_shop_loop_item', 'remove_product_price', 5, 1 ); // for each product on product listing page/shop page.
function remove_product_price( $product_id ) {
    $product_id  = get_the_ID();
    $hidden_price_category_ids = array( '27419','27421' ); // Add Product Category IDs for which the product price should be hidden.
    $product_cat_ids  = get_the_terms( $product_id, 'product_cat' ); // Getting all categories for this product.
    $cat_ids = wp_list_pluck( $product_cat_ids, 'term_id' ); // Getting all category ids for this product.   
    $result = array_intersect( $hidden_price_category_ids, $cat_ids ); // Will match hidden price categories with product categories and the cat id in the array.

    // If a hidden price category is found
    if( !empty($result) ) {
        add_filter( 'woocommerce_get_price_html', 'return_custom_price', 10, 2 );
        remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );
        remove_action( 'woocommerce_after_shop_loop_item', 'woocommerce_template_loop_add_to_cart' );
    } else {
        remove_filter( 'woocommerce_get_price_html', 'return_custom_price', 10, 2 );
        add_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );
        add_action( 'woocommerce_after_shop_loop_item', 'woocommerce_template_loop_add_to_cart' );
    }
}

How can I do it for WooCommerce archive pages?

Answer 1

Your existing code is complicated, uncompleted and not really convenient. Try the following instead that will work for single product pages and archives pages too (as shop page).

It handles any kind of product, including variable products and their variations.

For defined product categories, it replace the price and disable add to cart button on related products.

The code:

// Custom conditional function that check for specific product categories
function check_for_defined_product_categories( $product_id ) {
    // HERE your Product Categories where the product price need to be hidden.
    $targeted_terms = array( '27419','27421' ); // Can be term names, slugs or Ids

    return has_term( $targeted_terms, 'product_cat', $product_id );
}

// Custom function that replace the price by a text
function product_price_replacement(){
    return '<span style="color:red; font-size:12px;">' . sprintf( __( "Call our office %s for prices."), '<strong>516.695.3110</strong>' ) . '</span>';
}

// Replace price by a text (conditionally)
add_filter( 'woocommerce_get_price_html', 'filter_get_price_html_callback', 10, 2 );
function filter_get_price_html_callback( $price, $product ){
    if( check_for_defined_product_categories( $product->get_id() ) ) {
        $price = product_price_replacement();
    }
    return $price;

}

// Hide prices and availiability on product variations (conditionally)
add_filter( 'woocommerce_available_variation', 'filter_available_variation_callback', 10, 3 ); // for Variations
function filter_available_variation_callback( $args, $product, $variation ) {
    if( check_for_defined_product_categories( $product->get_id() ) ) {
        $args['price_html'] = '';
        $args['availability_html'] = '';
    }
    return $args;
}

// Disable add to cart button (conditionally)
add_filter( 'woocommerce_variation_is_purchasable', 'woocommerce_is_purchasable_filter_callback', 10, 2 );
add_filter('woocommerce_is_purchasable', 'woocommerce_is_purchasable_filter_callback', 10, 2 );
function woocommerce_is_purchasable_filter_callback( $purchasable, $product ) {
    $product_id = $product->get_parent_id() > 0 ? $product->get_parent_id() : $product->get_id();

    if( check_for_defined_product_categories( $product_id ) ) {
        $purchasable = false;
    }
    return $purchasable;
}

Code goes in functions.php file of your active child theme (or active theme). Tested and work.