Check applied coupons before adding a fee in Woocommerce - php

Question

I am using some code to add a custom fee at checkout in Woocommerce, however when applying a coupon it does not deduct the fee.
Is there a way to check if a coupon has been used before adding the fee? That is any coupon at all not a specific one.
Code so far is
global $woocommerce;
if (empty($woocommerce->cart->applied_coupons)) {
add_action( 'woocommerce_cart_calculate_fees','endo_handling_fee' );
function endo_handling_fee() {
global $woocommerce;
if ( is_admin() && ! defined( 'DOING_AJAX' ) )
return;
$fee = 1.50;
$woocommerce->cart->add_fee( 'Transaction Fee', $fee, true, 'standard' );
}
}
So you can see I am trying to add an if statement for coupons however this shows the fee whether there is a coupon or not. So I am stuck, any help hugely appreciated!
Thanks

Answer 1

Your code is a little outdated and you need to add your If statement inside the function instead:
add_action( 'woocommerce_cart_calculate_fees','endo_handling_fee', 10, 1 );
function endo_handling_fee( $cart ) {
if ( is_admin() && ! defined( 'DOING_AJAX' ) )
return;
if ( sizeof( $cart->get_applied_coupons() ) > 0 )
return;
$fee = 1.50;
$cart->add_fee( __("Transaction Fee"), $fee, true );
}
Code goes in function.php file of your active child theme (or active theme). Tested and works.
Note: Coupon discounts are applied only on cart items. They don't care about Fees.