How to link a payment method for pickup?

Hi,

Activate cash on delivery payment method in the Woocommerce

After that You can add this code in your them functions.php file

Below code will hide all payment method for Pickup side and only cash on delivery will be allowed

add_filter('woocommerce_available_payment_gateways',function($gateways){
	if(is_admin()) return $gateways;
        
	if(!class_exists('pi_dtt_delivery_type')) return $gateways;

    $type =  pi_dtt_delivery_type::getType();
	if($type == 'pickup'){
		foreach($gateways as $key => $val){
            if($key != 'cod'){
                unset($gateways[$key]);
            }
        }
	}

	return $gateways;
}, 1);

You can change the title of the payment method using the below code

add_filter( 'woocommerce_gateway_title', function ( $title, $payment_id ){
	if(is_admin()) return $gateways;
        
	if(!class_exists('pi_dtt_delivery_type')) return $gateways;

    $type =  pi_dtt_delivery_type::getType();
	if($type == 'pickup'){
		if( $payment_id === 'cod' ) {
			$title = "Payment on the spot";
		}
	}
    
    return $title;
}, 100, 2 );