Shayne Sanderson

WordPress Developer

By 14 Comments

So, if any of you use the WordPress shopping cart plugin WP Ecommerce, first of all you’ll notice that it is a superb ecommerce solution for a WordPress site. With that being said, there are some bugs here and there, which is to be expected I think…after all the plugin is free!

So, what I would like to address today is one of those bugs – passing variations on to Google Checkout.

Within WP Ecommerce you can set up variation sets, like for example: Small, Medium and Large if you are selling T-Shirts. Here’s where the bug comes in. If you’re using Google Checkout as your payment gateway, you’ll notice that the variations don’t get passed on to the Google Checkout page which makes it very difficult to know what exactly your customer ordered, besides just the product itself.

So, what you will need to do is FTP into your site and in “wp-contents/plugins/wp-shopping-cart/shopping_cart_functions.php” find this chunk of code (which starts on line 168 of my version which is 3.6.8 RC1):

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if (array_search("google",get_option('custom_gateway_options')) !== false) {
				$google_item = new GoogleItem(utf8_decode($product['name']),utf8_decode($product['description']), $quantity, $google_unit_price);
				$google_item->SetMerchantItemId($product['id']);
 
				$google_cart->SetMerchantCalculations(get_option('siteurl'),"false","false","false");
				//echo serialize($cart_item->product_variations);
				$google_item->SetMerchantPrivateItemData("some variations");
				$google_cart->AddItem($google_item);
			}

The second line in that code is what you will want to change. Copy the code below and replace the second line in that chunk of code:

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$google_item = new GoogleItem(utf8_decode($product['name'].$variation_list),utf8_decode($product['description']), $quantity, $google_unit_price);

That’s it! Now your shopping cart should pass the variation sets over to Google Checkout and you’ll know what your customers ordered!! Good luck and happy coding.

Until next time…

Reader Interactions

Comments

  6. Andrew says

    please respond to my post on this issue on the Instinct forums as soon as possible. your suggestions on the forums have been very helpful and i am grateful for them. sadly this issue is a major bump in the road.

    here is the link:
    http://www.instinct.co.nz/forums/topic.php?id=910…

    with much appreciation,
    Andrew

    I am also on skype. please feel free to call me tomorrow (monday) 415.501.9651

    Reply

  9. Chris says

    Hi Shayne – Thanks for this – I just upgraded to RC3 and noticed that your fix for this appears to be included in the new version, however variations are not being passed through to Google – any thoughts?

    Thanks for all your work!

    Reply

  11. Robin says

    I'm a newbie and thrilled with WP e-commerce, especially now that I've discovered you. However, I currently have an issue with Google chcekout because they require a secure Google API callback url. The one I'm given through WP e-commerce does not have the "s" (https://) . How do I go about making my site secure so I can get this proper url for google checkout?

    Reply

  12. shayne says

    Robin,

    That's something that can be done through your hosting provider. Just contact them and tell them you need a SSL certificate for your site, and they can help out with that.

    Reply

  13. Robin says

    Shayne,
    Thanks again and happy holidays! You wouldn't believe the disaster securing my site has caused. My entire database was corrupted in a renaming process, and I had to almost start over. The blessing is that I changed themes which several experts had suggested I do. My domain host was veyr helpful in restoring what data they could, but I lost 3 days getting the problem resolved. Anyway….

    I just left a comment on one of your other posts, and then remembered another question. I'd like to have my products show only images on the main page, and when you click on the image, the full description appears. I noticed it does this when you do a search for products – the page changes to this format but reverts to the original when you leave the site and return. I suspect it's an easy change I'm overlooking, but how do I get my page to only show images, titles and price until you click on the image for the full description? Is it possible to "tile" the images?

    Reply

  14. shayne says

    Robin –

    The easiest way to accomplish this is to get the Gold/Grid View module from Instinct.

    Otherwise, you could edit the PHP files, but that would be a little bit of work…

    Reply

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