Disabling COD payment for certain customers

[moosesoom]

Hello everybody,
I have to disable COD payment for some customers.

I obtained a first one result with the following code:

$cod_excluded_customers_ids=array(15,391);
if (in_array($_SESSION['customer_id'], $cod_excluded_customers_ids, false)) {
$this->enabled = false

that's fine because removes COD payment method from checkout_payment page.
but I'd rather show a message like "Sorry, you can't use COD payment (because of previuous troubles with your orders delivery)"

Something similar to the "Shipping method not available to the selected country" message used in shipping modules

please, has someone some pointers to help me in this implementation?

Many thanks
Bye
Francesco

[twitchtoo]

You said this switch is working:
$cod_excluded_customers_ids=array(15,391);
if (in_array($_SESSION['customer_id'], $cod_excluded_customers_ids, false)) {
$this->enabled = false

So add this:
$cod_excluded_customers_ids=array(15,391);
if (in_array($_SESSION['customer_id'], $cod_excluded_customers_ids, false)) {
$this->enabled = false
// Explain error to customer
echo 'Sorry, COD payment is no longer available with this account';
}

[moosesoom]

Sorry, I forgot to say I already tried with a simple echo, but the message is printed on top of page, not in payment methods list.

[twitchtoo]

Okay, you'll need to put the notification on the payment page. It sees the switch then displays the message.

I prefer to shut the code off in the module pages/header as it seems you have :) then look for the switch and display something if it returns false on the payment page.

Something like:
if ($cod_excluded_customers_ids = false) {
// Explain error to customer
echo 'Sorry, COD payment is no longer available with this account';
}

[moosesoom]

Here's the smart (I hope) solution:

in includes/modules/payment/cod.php:

$cod_excluded_customers_ids=array(15,391);
      if (in_array($_SESSION['customer_id'], $cod_excluded_customers_ids, false)) { ?>
      <?php
            $messageStack->add_session('disabled_cod', MY_CUSTOMERS_DISABLED_COD , 'warning');
            $this->enabled = false;
      }

in templates/MY_TEMPLATE/templates/tpl_checkout_payment_default.php change:

<?php
  $radio_buttons = 0;
  for ($i=0, $n=sizeof($selection); $i<$n; $i++) {
?>

to:

<?php if ($messageStack->size('disabled_cod') > 0) echo $messageStack->output('disabled_cod'); ?>
</br>
<?php
  $radio_buttons = 0;
  for ($i=0, $n=sizeof($selection); $i<$n; $i++) {
?>

in includes/languages/MY_TEMPLATE/english.php add:

define('MY_CUSTOMERS_DISABLED_COD', 'Sorry but COD payment for this account has been disabled'); 

So finally we have this:

[twitchtoo]

nice work.