IE required code

ie-req-code-wc.php

add_filter( 'woocommerce_checkout_fields', 'custom_override_default_address_fields' );
function custom_override_default_address_fields($fields){
    global $woocommerce;
    $country = $woocommerce->customer->get_billing_country();
    if($country == 'IE'){
        $fields['billing']['billing_postcode']['required'] = true;
        $fields['shipping']['shipping_postcode']['required'] = true;
    }
    return $fields;
}

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