32 replies to this topic

[bebba]

How does the currency update work. Iget an error?

[SpyrosT]

I have 3 currencies in my shop and the update works fine.

[rocky]

Your server configuration may be blocking PrestaShop's call to the currency XML feed. You'll need to contact your host and ask them to unblock it.

[bebba]

OK, is ther an currency XML file then, wher?

[rocky]

It is http://www.prestasho...currencies.xml. If PrestaShop can't access that file, then it can't update the currency rates.

[bebba]

So that file is on Pretashop.com server?, wher/ in witsh file in my shop is the link to the file supose to be?

[rocky]

The file isn't in your shop. It is read directly from the PrestaShop server. That's why it isn't working for you. Your server configuration isn't letting PrestaShop read it off the server.

[bebba]

OK, i'v asked my server company to look at this.

I found this code in \Classes\currency.php

static public function refreshCurrencies()
{
if (!$feed = @simplexml_load_file('http://www.prestashop.com/xml/currencies.xml'))
return Tools::displayError('Cannot parse feed!');
if (!$defaultCurrency = intval(Configuration::get('PS_CURRENCY_DEFAULT')))
return Tools::displayError('No default currency!');
$isoCodeSource = strval($feed->source['iso_code']);
$currencies = self::getCurrencies(true);
$defaultCurrency = self::refreshCurrenciesGetDefault($feed->list, $isoCodeSource, $defaultCurrency);
foreach ($currencies as $currency)
if ($currency->iso_code != $defaultCurrency->iso_code)
$currency->refreshCurrency($feed->list, $isoCodeSource, $defaultCurrency);
}
}

?>

Does ths look right, can you compare whit your file? is this file supose to be 777?

[rocky]

That's the same as my file. The problem is that your server is returning false when @simplexml_load_file('http://www.prestashop.com/xml/currencies.xml') in executed, whereas it is returning the feed on my server.

[bebba]

OK so thet file des not have to be 777

[rocky]

No, classes/Currency.php does not need to be chmod 777, and you can't change the permissions on the currencies.xml file since it is on PrestaShop's server.

[bebba]

I get a question from my server admin, (What is required for the service to work? In what way is the XML feeds retrieved through "PrestaShop"?

What do i answer. Can i show them the classes/currency.php file?

[rocky]

Just ask them whether your server is configured to allow @simplexml_load_file('http://www.prestashop.com/xml/currencies.xml') to work.

[bebba]

The server admin replayed this:

Seems as if this is fopen, which is not permitted on our servers. Tip is that you us a curl script to first get home this locally and then see if it works to read it.

[rocky]

It looks like you'll need to change to a server that uses fopen or rewrite PrestaShop's code to use cURL. I did a Google search and found this site which has cURL code. You could try using code similar to it. Unfortunately, I'm not familiar with cURL, so I can't help any more.

[bebba]

OK i got a file from the server admin, this is the kode: see img.



i wright http://www.prestasho.../currencies.xml - insted of http://www.loopia.se/ - But wher do i put in the serchway/link to this file?

The filename is: file_get_url_contents.php

Do you think this will work?

Attached Files

•  prestaimgstor3.jpg   162bytes   557 downloads

[bebba]

How do i rewrite PrestaShop’s code to use cURL?

[rocky]

Yes, that should work. Use that code to get the currencies.xml file as a string, then use the following code to read the string into XML:

$feed = @simplexml_load_string($res);

[bebba]

OK, so do iput in the code i got from server admin in to classes/Currency.php insted of http://www.prestasho...currencies.xml. and den insert the code to read the string into XML after that code?

[rocky]

Replace the refreshCurrencies() function on lines 217-229 of classes/Currency.php (in PrestaShop v1.3):

static public function refreshCurrencies()
{
    if (!$feed = @simplexml_load_file('http://www.prestashop.com/xml/currencies.xml'))
        return Tools::displayError('Cannot parse feed!');
    if (!$defaultCurrency = intval(Configuration::get('PS_CURRENCY_DEFAULT')))
        return Tools::displayError('No default currency!');
    $isoCodeSource = strval($feed->source['iso_code']);
    $currencies = self::getCurrencies(true);
    $defaultCurrency = self::refreshCurrenciesGetDefault($feed->list, $isoCodeSource, $defaultCurrency);
    foreach ($currencies as $currency)
        if ($currency->iso_code != $defaultCurrency->iso_code)
            $currency->refreshCurrency($feed->list, $isoCodeSource, $defaultCurrency);
}

with the following two functions:

static public function file_get_url_contents($url) {
    if (preg_match('/^([a-z]+):\/\/([a-z0-9-.]+)(\/.*$)/i', $url, $matches)) {
        $protocol = strtolower($matches[1]);
        $host = $matches[2];
        $path = $matches[3];
    } else {
        // Bad url-format
        return FALSE;
    }

    if ($protocol == "http") {
        $socket = fsockopen($host, 80);
    } else {
        // Bad protocol
        return FALSE;
    }

    if (!socket) {
        // Error creating socket
        return FALSE;
    }

    $request = "GET $path HTTP/1.0\r\nHost: $host\r\n\r\n";
    $len_written = fwrite($socket, $request);

    if ($len_written === FALSE || $len_written != strlen($request)) {
        // Error sending request
        return FALSE;
    }

    $response = "";
    while (!feof($socket) && ($buf = fread($socket, 4096)) !== FALSE) {
        $response .= $buf;
    }

    if ($buf === FALSE) {
        // Error reading response
        return FALSE;
    }

    $end_of_header = strpos($response, "\r\n\r\n");
    return substr($response, $end_of_header + 4);
}

static public function refreshCurrencies()
{
    $url = "http://www.prestashop.com/xml/currencies.xml";
    $res = self::file_get_url_contents($url);
    if ($res === FALSE)
        return Tools::displayError("Error fetching $url");
    else
    {
        if (!$feed = @simplexml_load_string($res))
            return Tools::displayError('Cannot parse feed!');
        if (!$defaultCurrency = intval(Configuration::get('PS_CURRENCY_DEFAULT')))
            return Tools::displayError('No default currency!');
        $isoCodeSource = strval($feed->source['iso_code']);
        $currencies = self::getCurrencies(true);
        $defaultCurrency = self::refreshCurrenciesGetDefault($feed->list, $isoCodeSource, $defaultCurrency);
        foreach ($currencies as $currency)
            if ($currency->iso_code != $defaultCurrency->iso_code)
                $currency->refreshCurrency($feed->list, $isoCodeSource, $defaultCurrency);
    }
}