Solidus Multi-tenant Google Analytics Tracker

solidus_google_analytics.html.erb

<% if tracker = Spree::Tracker.current(current_store) %>
	<script id="solidus_trackers">
		(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
		(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
		m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
		})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
		ga('create', '<%= tracker.analytics_id %>', 'auto' {'name': '<%= current_store.name %>'});
		ga('<%= current_store.name %>.require', 'displayfeatures');
		ga('<%= current_store.name %>.send', 'pageview');
		<% if @order && order_just_completed?(@order) %>
			<%# more info: https://developers.google.com/analytics/devguides/collection/analyticsjs/ecommerce %>
			ga('<%= current_store.name %>.require', 'ecommerce', 'ecommerce.js');
			ga('<%= current_store.name %>.ecommerce:addTransaction', {
				'id': '<%= j @order.number %>',                                    // Transaction ID. Required.
				'affiliation': '<%= current_store.name %>',                 // Affiliation or store name.
				'revenue': '<%= @order.total %>',                                // Grand Total.
				'shipping': '<%= @order.ship_total %>',                                  // Shipping.
				'tax': '<%= @order.tax_total %>',                                        // Tax.
				'currency': '<%= @order.currency %>'                        // local currency code.
			});
		<% @order.line_items.each do |line_item| %>
			ga('<%= current_store.name %>.ecommerce:addItem', {
				'id': '<%= j @order.number %>',                        // Transaction ID. Required.
				'name': '<%= j line_item.variant.product.name %>',    // Product name. Required.
				'sku': '<%= j (line_item.variant.sku || line_item.variant_id) %>', // SKU/code.
				'category': '',                                     // Category or variation.
				'price': '<%= line_item.price %>',                 // Unit price.
				'quantity': '<%= line_item.quantity %>'           // Quantity.
			});
		<% end %>
		ga('<%= current_store.name %>.ecommerce:send');
		<% end %>
	</script>
<% end %>