Custom field to change Cart Price

• coopero

• September 18, 2020 at 8:22 pm

My goal is to set up custom prices for set customers in the back end of every product.

This is what I have so far in functions.php

function alter_price( $price ) {
    
    $customer = get_field('customer',$product->id);
    $special_customer_ids = [$customer];
 
   if ( in_array( get_current_user_id(), $special_customer_ids, true ) && (get_field('special_price',$product->id))) {
      $price = get_field('special_price');
      return $price;
   } else {
    return $price;
   }
}

add_filter( 'woocommerce_product_get_price', 'alter_price', 10, 1 );

add_action( 'woocommerce_before_calculate_totals', 'add_custom_price', 20, 1);

function add_custom_price( $cart_obj ) {

    // This is necessary for WC 3.0+
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // Avoiding hook repetition (when using price calculations for example)
    if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 )
        return;

    // Loop through cart items
    foreach ( $cart_obj->get_cart() as $cart_item ) {
        $customer = get_field('customer',$product->id);
        $special_customer_ids = [$customer];
 
        if ( in_array( get_current_user_id(), $special_customer_ids, true ) && (get_field('special_price',$product->id))) {
            $newprice = get_field('special_price');
            $cart_item['data']->set_price( $newprice );
        }
    }
}

The first part works perfectly. I can choose the customer and price and the product page shows it correctly. The next step, making that translate to the cart is where I’m struggling. I’ve been through several alterations of that. I think I should be using the_field and specifying the ID. Any help is appreciated. 🙂

• coopero

• September 18, 2020 at 8:29 pm

My end goal is to be able to use a custom price for specified customers. I’ve figured that part out and the alter_price function is working. the hard part, making that translate into the cart is where I’m struggling – it seems to be a different ball game.

function alter_price( $price ) {
    
    $customer = get_field('customer',$product->id);
    $special_customer_ids = [$customer];
 
   if ( in_array( get_current_user_id(), $special_customer_ids, true ) && (get_field('special_price',$product->id))) {
      $price = get_field('special_price');
      return $price;
   } else {
    return $price;
   }
}

add_filter( 'woocommerce_product_get_price', 'alter_price', 10, 1 );

add_action( 'woocommerce_before_calculate_totals', 'add_custom_price', 20, 1);

function add_custom_price( $cart_obj ) {

    // This is necessary for WC 3.0+
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // Avoiding hook repetition (when using price calculations for example)
    if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 )
        return;

    // Loop through cart items
    foreach ( $cart_obj->get_cart() as $cart_item ) {
        $customer = get_field('customer',$product->id);
        $special_customer_ids = [$customer];
 
        if ( in_array( get_current_user_id(), $special_customer_ids, true ) && (get_field('special_price',$product->id))) {
            $newprice = get_field('special_price');
            $cart_item['data']->set_price( $newprice );
        }
    }
}

I have been looking all over the place and been through several alterations of add_custom_price. I think I should probably be using the_field and a product ID. Any help is appreciated.