I had the latest version of WP e-Commerce installed, version 3.7.6.7, and configured the analytics plugin to track transactions but for some reason my ecommerce purchases were not being tracked by Google Analytics.

I did a bit of digging around and discovered the Analytics plugin was looking for the global variable $cart_log_id from which it could get the transaction details, but this variable did not seem to exist (it did seem to be in pre 3.7.6.x versions of WP e-Commerce though).

I have submitted a patch for this for the forthcoming WP e-Commerce version 3.8 (which is currently in beta and looking great, by the way).

In the meantime, if you’re having this problem here’s how you can fix it…

The Fix

You’ll need to get your hands a little bit dirty, but fortunately you only have to edit one file. In the WP e-Commerce plugin folder open the transaction_results.php file.

Step 1

Change the first line that defines global variables to add the $cart_log_id variable:

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global $wpdb, $user_ID, $nzshpcrt_gateways, $sessionid, $cart_log_id;

Step 2

At the end of the file just before the closing php tag we’ll query the database to get the $cart_log_id that will be used by the analytics plugin:

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$cart_log_id = $wpdb->get_var( "SELECT `id` FROM `" . WPSC_TABLE_PURCHASE_LOGS . "` WHERE `sessionid`= " . $sessionid . " LIMIT 1" );
?>

…and hopefully that should fix it.

I haven’t tested this for all versions of WP e-Commerce but it should certainly work on the latest 3.7.6.7 version.

The latest release contains a suite of functions (my little contribution) to help you customise how pagination is displayed in your WPSC templates.

You can find an in-depth look at these functions and how to use them in the WP e-Commerce Documentation.

Below are some quick examples of what you can do…

Basic paging

Some fairly standard paging with linked page numbers, previous and next links, and arrow links to take to to the first and last pages. You can customise the text that is used for previous, next, first and last links.

<?php echo wpsc_first_products_link( '&laquo;', true ); ?>
<?php echo wpsc_previous_products_link( 'previous', true ); ?>
<?php echo wpsc_pagination(); ?>
<?php echo wpsc_next_products_link( 'next', true ); ?>
<?php echo wpsc_last_products_link( '&raquo;', true ); ?>

Limit the amount of pages

You can limit the amount of page links to show at one time. The above example shows what happens if there are 10 pages of products, but only showing 7 page links at a time. Notice also the text describing which page you’re on and that the previous and first links are greyed out when not applicable – you can also choose to hide them instead of showing inactive links.

Page <?php wpsc_showing_products_page(); ?>:
<?php echo wpsc_first_products_link( '&laquo;', true ); ?>
<?php echo wpsc_previous_products_link( 'previous', true ); ?>
<?php echo wpsc_pagination( 7 ); ?>
<?php echo wpsc_next_products_link( 'next', true ); ?>
<?php echo wpsc_last_products_link( '&raquo;', true ); ?>

Total number of products

There is a function to easily display the total number of products. You can detect if the category has multiple pages and if it doesn’t display something like this instead.

<?php if ( wpsc_has_pages() ) : ?>
   <!-- Insert pagination for multiple pages -->
<?php else : ?>
   Showing <?php echo wpsc_total_product_count(); ?> products
<?php endif; ?>

Number of products showing

You can display an indication as to which products are showing depending on which page you’re viewing.

Showing <?php echo wpsc_showing_products(); ?> of <?php echo wpsc_total_product_count(); ?> products:

What next?

The new WP e-Commerce default themes contain examples of pagination so hop into your templates and create some nice pagination…

But what if you want the link to redirect to a page instead of triggering this popup? You just need to make a small change to your checkout template. Here’s what you need to do…

In The Admin

In the admin, instead of specifying terms and conditions text we are going to enter a URL. Make sure your URL is a full path including ‘http://’ as this will make it easier to detect wether the content is a URL or plain text.

Changes in your WP e-Commerce Theme

Your WP e-Commerce theme files usually reside in the ‘wp-content/uploads/wpsc/themes/your-theme’ directory. To change the terms and conditions link to link to another page rather that popup you will need to edit the ‘shopping_cart_page.php’ file.

In this file look for the terms and condition code. It will be near the bottom and should look a bit like this:

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<?php if(get_option('terms_and_conditions') != '') : ?>
<tr>
   <td colspan='2'>
      <input type='checkbox' value='yes' name='agree' /> <?php echo TXT_WPSC_TERMS1;?><a class='thickbox' target='_blank' href='<?php echo get_option('siteurl')."?termsandconds=true&amp;width=360&amp;height=400'"; ?>' class='termsandconds'><?php echo TXT_WPSC_TERMS2;?></a>
   </td>
</tr>
<?php endif; ?>

What we will do is change this code so if the contents of your terms and condition is a link (beginning http://) it will write a link to that page rather than a popup. The new code with the if statement should look like this:

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<?php if ( get_option('terms_and_conditions') != '' ) : ?>
<tr class="terms">
   <td colspan='2'>
      <input type='checkbox' value='yes' name='agree' /> <?php echo TXT_WPSC_TERMS1;?>
      <?php if ( substr(get_option('terms_and_conditions' ), 0, 7) == 'http://' ) { ?>
         <a target='_blank' href='<?php echo get_option('terms_and_conditions'); ?>' class='termsandconds'><?php echo TXT_WPSC_TERMS2;?></a>
      <?php } else { ?>
         <a class='thickbox' target='_blank' href='<?php echo get_option('siteurl')."?termsandconds=true&amp;width=360&amp;height=400'"; ?>' class='termsandconds'><?php echo TXT_WPSC_TERMS2;?></a>
      <?php } ?>
   </td>
</tr>
<?php endif; ?>

And that’s all there is to it.

One thing I think should be changed to bring the product edit screen in-line with the WordPress post/page editing layouts is the separation of the Categories and Tags boxes.

How things are…

The WordPress post/page edit screen looks like this:

Currently, editing Categories and Tags in WP e-Commerce looks like this:

How I think things should be…

A few times I have run into problems with the current WP e-Commerce categories and tag box in that if I have long category names, they wrap very badly on smaller screens where there isn’t much space – the tags filed squashes everything over to the left.

I propose that the categories and tags box be separated into a similar layout to the way WordPress does things. This would add UI consistency throughout the admin and the boxes would be expandable allowing you to easily minimise the tags box if you only use it infrequently.

So you would end up with something like this:

It is essentially a mirror version of the panels in the main WordPress admin but with some of the extra functionality removed.

In WP e-Commerce it is possible to have multiple types of category grouping such as Categories and Brands. In this scenario I would suggest that the scrolling categories area in the Categories box (illustrated above) is duplicated so that there are two scrolling areas – one for categories and one for brands.

So, what do you think?

That’s just my opinion so please vote and leave your comments below and who knows, if enough of you like my idea then it might find it’s way into a future release of WP e-Commerce.

It’s a great e-commerce plugin for WordPress but there were a few visual things niggling me that I thought should be sorted out – mainly the way that the widget for showing categories was not styled the same way as the WordPress default widgets.

Fixing the issue was just a case of making a couple of tweaks to the HTML; changing some square brackets to normal brackets and removing some bold styling.

Nothing revolutionary there, but it should now look a whole lot better with your default WordPress theme without making any modifications…

The current version in development WP e-Commerce 3.7 is looking great, with an overhaul of the user interface to bring it into line with WordPress 2.7, a complete reorganisation of the code making it easier for us developers, and a new template engine which works along the same lines at the WordPress Loop so that theme authors can now get in on the act without having to delve too far into the plugin’s code.