Woo Woes

logged-in-special-brand-price.php

    // Utility function to change the prices with a multiplier (number)

    function get_price_multiplier() {

      $prod_id    = get_the_ID();
      $brand      = 'acme';

      if ( (is_user_logged_in()) && ($brand == 'acme') ) {
        return 0.8; // 20% off
      } else {
        return 1;
      }

    }

    // Simple, grouped and external products
    
    add_filter('woocommerce_product_get_price', 'custom_price', 99, 2 );
    add_filter('woocommerce_product_get_regular_price', 'custom_price', 99, 2 );
    
    // Variations
    
    add_filter('woocommerce_product_variation_get_regular_price', 'custom_price', 99, 2 );
    add_filter('woocommerce_product_variation_get_price', 'custom_price', 99, 2 );
    
    function custom_price( $price, $product ) {
        return (float) $price * get_price_multiplier();
    }
    
    // Variable (price range)
    
    add_filter('woocommerce_variation_prices_price', 'custom_variable_price', 99, 3 );
    add_filter('woocommerce_variation_prices_regular_price', 'custom_variable_price', 99, 3 );
    
    function custom_variable_price( $price, $variation, $product ) {
        
    // Delete product cached price  (if needed)

        wc_delete_product_transients($variation->get_id());

        return (float) $price * get_price_multiplier();
    }
    
    // Handling price caching (see explanations at the end)

    add_filter( 'woocommerce_get_variation_prices_hash', 'add_price_multiplier_to_variation_prices_hash', 99, 3 );
    
    function add_price_multiplier_to_variation_prices_hash( $price_hash, $product, $for_display ) {
        $price_hash[] = get_price_multiplier();
        return $price_hash;
    }