Piwik & WooCommerce - tracking code and woocommerce order tracking

gistfile1.txt

// in line 61 insert your piwik url
// source code: wordpress.org/plugins/woocommerce-piwik-integration/

/* Get encoded categories by product.
=========================================================================== */
function getEncodedCategoriesByProduct( $product ) {
	$categories = get_the_terms( $product->get_id(), 'product_cat' );

	if ( ! $categories ) {
		$categories = array();
	}

	$categories = array_map( function ( $element ) {
		return sprintf( "'%s'", esc_attr( $element->name ) );
	}, $categories );

	return sprintf( "[%s]", implode( ", ", $categories ) );
}


/* Piwik tracking code.
=========================================================================== */
function itl_piwik_tracking_code() {
	global $wp_query, $product;

	$code  = "";
	$code .= "
		var _paq = _paq || [];";

	if ( is_product() ) {
	$code .= sprintf("
		_paq.push(['setEcommerceView',
			'%s',
			'%s',
			%s,
			%f
		]);", $product->get_sku(), esc_attr( $product->get_title() ), getEncodedCategoriesByProduct( $product ), $product->get_price() . '0' );
	}
	elseif ( is_product_category() && isset( $wp_query->query_vars['product_cat'] ) && ! empty( $wp_query->query_vars['product_cat'] ) ) {
	$code .= sprintf("
		_paq.push(['setEcommerceView',
			false,
			false,
			'%s'
		]);", esc_attr( $wp_query->queried_object->name ) );
	}

	if ( is_user_logged_in() ) { 
	$code .= sprintf("
		_paq.push(['setUserId', '%s']);", get_current_user_id() );
	}

	$code .= "
		_paq.push(['trackPageView']);";
	$code .= "
		_paq.push(['enableLinkTracking']);";
	$code .= "
		_paq.push(['enableHeartBeatTimer', 30]);";
	$code .= "
		(function() {
			var u='//piwik.test.com/'; 
			_paq.push(['setTrackerUrl', u+'piwik.php']);
			_paq.push(['setSiteId', '1']);
			var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
			g.type='text/javascript'; g.async=true; g.defer=true; g.src=u+'piwik.js'; s.parentNode.insertBefore(g,s);
		})();
		";

	echo '<script type="text/javascript">' . $code . '</script>';
}
add_action( 'wp_footer', 'itl_piwik_tracking_code' );


/* Piwik woocommerce order tracking.
=========================================================================== */
function itl_ecommerce_tracking_code( $order_id ) {
	if ( get_post_meta( $order_id, '_piwik_tracked', true ) == 1 ) {
		return;
	}

	$order = new WC_Order( $order_id );
	$code  = '
		var _paq = _paq || [];
	';

	if ( $order->get_items() ) {
		foreach ( $order->get_items() as $item ) {
			$_product = $order->get_product_from_item( $item );
			$code .= '
			_paq.push(["addEcommerceItem",
			"' . esc_js( $_product->get_sku() ? $_product->get_sku() : $_product->id ) . '",
			"' . esc_js( $item['name'] ) . '",';

			$out        = array();
			$categories = get_the_terms( $_product->id, 'product_cat' );
			if ( $categories ) {
				foreach ( $categories as $category ) {
					$out[] = $category->name;
				}
			}
			if ( count( $out ) > 0 ) {
				$code .= '["' . join( "\", \"", $out ) . '"],';
			} else {
				$code .= '[],';
			}

			$code .= '"' . esc_js( $order->get_item_total( $item ) ) . '",';
			$code .= '"' . esc_js( $item['qty'] ) . '"';
			$code .= "]);";
		}
	}

	$code .= '
		_paq.push(["trackEcommerceOrder",
		"' . esc_js( $order->get_order_number() ) . '",
		"' . esc_js( $order->get_total() ) . '",
		"' . esc_js( $order->get_total() - $order->get_total_shipping() ) . '",
		"' . esc_js( $order->get_total_tax() ) . '",
		"' . esc_js( $order->get_total_shipping() ) . '"
		]);
	';

	echo '<script type="text/javascript">' . $code . '</script>';

	update_post_meta( $order_id, '_piwik_tracked', 1 );
}
add_action( 'woocommerce_thankyou', 'itl_ecommerce_tracking_code' );