[Done v1.3.8] bug in use_default_language_currency switch

[paul3648]

I am selling exclusively to other countries. It would be nice if I could price my products in my local currency (Taiwan dollars) and allow my customers to select their own currency.

Problem #1: I don't want TWD to show up as the default currency. USD would be OK, and I can do this by setting 'Switch to Default Language Currency' to TRUE and then set USD as the language currency in the english.php file. Great! But there is a lingering problem:

Problem #2: If the customer changes the currency to (say) UK pounds, the currency keeps on switching back to US dollars with each new page view.

So my question:

Is there any way to use US dollars as the default display currency that shows when first arriving at the site, use TWD as the default pricing currency, and allow customer to switch to their preferred currency and maintain that switch for the duration of their session?

[paul3648]

I don't mind talking to myself because it helps to clarify the problems when I write them out.

I can't use 'Switch to Default Language Currency' - so that has to be set to off...

Now I just need a way to insert a SELECTED tag in the currency drop-down box.

The tpl_currencies.php file holds the drop-down box, so I'm thinking I need to have an extra row in the database for the SELECTED tag, or simply hard-code the tpl_currencies.php file for my selected currencies.

Maybe that's the easiest way...

[DrByte]

Problem #2: If the customer changes the currency to (say) UK pounds, the currency keeps on switching back to US dollars with each new page view.

This is not normal behaviour, and fixing this problem should be the solution for your needs.

What version of Zen Cart are you using?
What addons/mods have you installed?
What version of PHP and MySQL are you using?

[paul3648]

This is not normal behaviour, and fixing this problem should be the solution for your needs.

What version of Zen Cart are you using?
What addons/mods have you installed?
What version of PHP and MySQL are you using?

My test site has:

ZC 1.37
PHP 5.2.0
MySQL 4.1.21-standard

Addons include Testimonials, Google Froogle, Japanese Language (just the front end), css horizontal menu, css flyout categories, internet explorer stylesheet overrides, and PPEC-137-patches-March21-2007.

Since it's a test site I can fool around with the various files.

Thanks for this clue. I'll report back anything I find...

[paul3648]

This is not normal behaviour, and fixing this problem should be the solution for your needs.

So you are saying that any changes to the currency should stick for the duration of the session?

Where is that info stored?

I've tried changing the various settings under 'configuration/sessions' with no luck.

[paul3648]

I've just tested this on another installation and get the same behaviour:

When 'Switch to Default Language Currency' is set to true, each new page refresh bring back the default currency for that language.

So if English is set to USD, the customer switches to British pounds, the next page the currency is back to USD.

That makes this setting ('Switch to Default Language Currency') almost useless, considering the large number of countries that use English but don't use the USD, or an English-speaking person living in a country which uses another currency than USD.

[paul3648]

I've also tested this on a new installation with both php 5 and php 4, so I understand this, venerable zen masters, as a test of my worthiness

init_currencies.php is the key - right? It seems to me there should be a flag that is set when changing currencies during a session, so the code would be something like:

if flag == true
don't do anything
else
init_currencies.php stuff

Just wish I had the programming skills to make it a reality

[DrByte]

Does this help?

Try replacing your /includes/init_includes/init-currencies.php file contents with this:

<?php
/**
 * initialise currencies
 *
 * @package initSystem
 * @copyright Copyright 2003-2007 Zen Cart Development Team
 * @copyright Portions Copyright 2003 osCommerce
 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
 * @version $Id: init_currencies.php 6244 2007-04-21 07:53:26Z drbyte $
 */
if (!defined('IS_ADMIN_FLAG')) {
  die('Illegal Access');
}

$new_currency = (isset($_GET['currency'])) ? zen_currency_exists($_GET['currency']) : zen_currency_exists($_SESSION['currency']);
if ($new_currency == false || isset($_GET['language'])) $new_currency = (USE_DEFAULT_LANGUAGE_CURRENCY == 'true') ? zen_currency_exists(LANGUAGE_CURRENCY) : $new_currency;
if ($new_currency == false) $new_currency = zen_currency_exists(DEFAULT_CURRENCY, true);

if ((!isset($_SESSION['currency']) && !isset($_GET['currency']) ) || (isset($_GET['currency'])) || (isset($_GET['language']) && USE_DEFAULT_LANGUAGE_CURRENCY == 'true' && LANGUAGE_CURRENCY != $_SESSION['currency']  )) {
  $_SESSION['currency'] = $new_currency;
}
?>

[paul3648]

Thank you VERY MUCH!!

That seems to work GREAT!

[paul3648]

Sorry...I don't know why it seemed to work the first time but I'm still having problems.

This line of code:

if ($new_currency == false || isset($_GET['language'])) $new_currency = (USE_DEFAULT_LANGUAGE_CURRENCY == 'true') ? zen_currency_exists(LANGUAGE_CURRENCY) : $new_currency;

...causes the currency to immediately revert to the default language currency if a currency change is attempted.

If I comment out this line, the currency changes will stick throughout the session, which is OK, but ideally I would like the language currency to be chosen when first selecting a new language, and then allowing the currency to be changed from the default.

It seems to be that this can be done with an else statement. I've played around with it a bit but haven't found the solution yet.

All of this is with Switch To Default Language Currency set to true.