WooCommerce Quick cart fee

Question

I would like to add a fee to certain categories if the total number of products from all the defined category is 1 or separate fee if the quantity is 2-9.. (IE. + $10 to the product if they only order 1, +$5 per product if they order 2-9 items).

I started on this base: Custom Fee based on product dimensions and categories

I have maid some changes, but I can't get it working and I am stuck.

Here is my code:

add_action( 'woocommerce_cart_calculate_fees','custom_applied_fee');
function custom_applied_fee() {

    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // Set HERE your categories (can be an ID, a slug or the name… or an array of this)
    $category1 = 'plain';
    $category2 = 'plywood';

    // variables initialisation
    $fee = 0;

    // Iterating through each cart item
    foreach(WC()->cart->get_cart() as $cart_item){
        // Get the product object
        $product = new WC_Product( $cart_item['product_id'] );
        $quantiy = $value['quantity']; //get quantity from cart

        // Initialising variables (in the loop)
        $cat1 = false; $cat2 = false;

        // ## CALCULATIONS ## (Make here your conditional calculations)
        $quantity = GET TOTAL QUANTITY
        if($quantity <= 1){
            $fee += 10 * $quanity;
        } elseif($quantity > 1 && $dimention <= 9){
            $fee += 5 * $quanity;
        } elseif($dimention > 10){
            $fee += 1 * $quanity;
        }
    }

    // Adding the fee
    if ( $fee != 0 )
        WC()->cart->add_fee( $fee_text, $fee, true );
}

What I am doing wrong? How can I get this working?

Answer 1

Updated 2

Your needs are not so clear, so I have tried to do my best. I have understood that you want to add:

• An fixed initial fee when there is 1 cart item from defined product category(ies).
• A calculated fee based on total cart item count when there is (from 2 to 9) cart items from defined product category(ies).

Here is the corresponding code for that:

add_action( 'woocommerce_cart_calculate_fees','conditional_custom_multiple_fees', 10, 1 );
function conditional_custom_multiple_fees( $cart_object ) {

    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // Set HERE your categories (can be an ID, a slug or the name… or an array of this)
    $product_categories = array('clothing', 'disc');
    $cat_qty = 0;
    $cart_total_qty = $cart_object->get_cart_contents_count();

    // Iterating through each cart item
    foreach( $cart_object->get_cart() as $cart_item ){
        $product = $cart_item['data']; // The product object
        $item_qty = $cart_item['quantity']; // Item quantity

        // Counting quanties for the product categories
        if( has_term( $product_categories, 'product_cat', $cart_item['data']->get_id() ) )
            $cat_qty += $cart_item['quantity'];
    }

    ##  --  --  --  --  CALCULATIONS AND CONDITIONAL FEES  --  --  --  --  ##

    // 1. A fee for the product defined categories for 1 cart item only
    if($cat_qty == 1) // updated HERE
    {
        $fee_amount = 10;
        $cart_object->add_fee( __( "Fee (1)" ), $fee_amount, true );
    }

    // 2. Or a calculated fee for the defined product categories (qty from 2 to 9)
    if( $cat_qty >= 2 && $cat_qty <= 9 )
    {
        $amount_by_item = 5; // amount by item (updated)
        $calculated_fee = $amount_by_item * $cat_qty;  // calculation (updated)
        $cart_object->add_fee( __( "Fee (2 to 9)" ), $calculated_fee, true );
    }
}

Code goes in function.php file of your active child theme (or theme) or also in any plugin file.

This code is tested and works.

Answer 2

Thanks LoicTheAztec I think with a few minor edits your code will work...

add_action( 'woocommerce_cart_calculate_fees','conditional_custom_multiple_fees', 10, 1 );
function conditional_custom_multiple_fees( $cart_object ) {

if ( is_admin() && ! defined( 'DOING_AJAX' ) )
    return;

// Set HERE your categories (can be an ID, a slug or the name… or an array of this)
$product_categories = array('clothing', 'disc');
$cat_qty = 0;
$cart_total_qty = $cart_object->get_cart_contents_count();

// Iterating through each cart item
foreach( $cart_object->get_cart() as $cart_item ){
    $product = $cart_item['data']; // The product object
    $item_qty = $cart_item['quantity']; // Item quantity

    // Counting quanties for the product categories
    if( has_term( $product_categories, 'product_cat', $cart_item['data']->get_id() ) )
        $cat_qty += $cart_item['quantity'];
}

##  --  --  --  --  CALCULATIONS AND CONDITIONAL FEES  --  --  --  --  ##

// 1. The 1st fee for the product defined categories (qty = 1)
if($cat_qty = 1)
{
    $fee_amount = 10;
    $cart_object->add_fee( __( "Fee (1)" ), $fee_amount, true );
}

// 2. The Separate  additional fee for the defined product categories (qty from 2 to 9)
if( $cat_qty >= 2 && $cat_qty <= 9 )
{
    $amount_by_item = 5; // amount by item
    $calculated_fee = $cat_qty * $amount_by_item;  // calculation
    $cart_object->add_fee( __( "Fee (2 to 9)" ), $calculated_fee, true );
}

}