How to make Special Instructions/Comments field on Order Form a required field

[RCwebdev]

How can I make the Special Instructions/Comments field on Order Form a required field ?

I have searched for this information but could not find it.

Thank You

[balihr]

You'll need to edit some of your files since this feature isn't built in.

Edit your includes/modules/pages/checkout_confirmation/header_php.php
Around line 48, find the following code:

if (isset($_POST['payment'])) $_SESSION['payment'] = $_POST['payment'];
$_SESSION['comments'] = zen_db_prepare_input($_POST['comments']);

and add AFTER:

// BOF Comments Required
if(!zen_not_null($_SESSION['comments'])) {
	$messageStack->add_session('checkout_payment', ERROR_COMMENTS_REQUIRED, 'error');
	zen_redirect(zen_href_link(FILENAME_CHECKOUT_PAYMENT, '', 'SSL'));
}
// EOF Comments Required

Next, edit your includes/languages/english.php (OR if you have a template override, it will be includes/languages/english/YOUR_TEMPLATE/english.php
Find the following:

define('ERROR_PRIVACY_STATEMENT_NOT_ACCEPTED', 'Please confirm the privacy statement by ticking the box below.');

and add after:

// BOF Comments Required
  define('ERROR_COMMENTS_REQUIRED','Comments are required.');
  // EOF Comments Required

And that's it. There might be different approaches, but I think this one is the simplest...

[mc12345678]

An approach that might help with upgrades would be to effectively do the same thing through the use of an observer... That way, when the next upgrade is performed, that header file will effectively remain the same (no special merge necessary) and with the good notes taken about the applied "mods" can verify that the proper notifiers remain.

[balihr]

Yes, you're absolutely right, but I did point out that this was the simplest method. Although observers are not rocket science, it IS slightly more complex...

However, since I always prefer to post a solution if I know it (instead of just talking about it), here's a version with observers.

[nicksab]

Yes, you're absolutely right, but I did point out that this was the simplest method. Although observers are not rocket science, it IS slightly more complex...

However, since I always prefer to post a solution if I know it (instead of just talking about it), here's a version with observers.

I understand this is a really old post but how can apply this to One Page Checkout?

I tried the provided file but no luck.

[swguy]

Please post this question to the One Page Checkout support thread; it will get some attention there.

[nicksab]

Please post this question to the One Page Checkout support thread; it will get some attention there.

I did andwas told it requires coding which i don't know anything about. I came across this threads and thought there was a way to adptit to OPC ( see#2512 in OPC threads)

Thank you