try a new module with woocommerce tracking, ported from recent google…

… analytics enhancements

modules/module-extras.php

@@ -25,6 +25,7 @@
 	'seo-tools/jetpack-seo-posts.php',
 	'simple-payments/simple-payments.php',
 	'verification-tools/verification-tools-utils.php',
+	'woocommerce-analytics/wp-woocommerce-analytics.php',
 );
 
 // Not every tool needs to be included if Jetpack is inactive and not in development mode

modules/module-headings.php

@@ -349,4 +349,4 @@ function jetpack_get_module_i18n_tag( $key ) {
 		);
 	}
 	return $module_tags[ $key ];
-}
+}

modules/module-info.php

@@ -650,3 +650,18 @@ function jetpack_google_analytics_more_info() {
 		, 'jetpack' );
 }
 add_action( 'jetpack_module_more_info_google-analytics', 'jetpack_google_analytics_more_info' );
+
+/**
+ * WooCommerce Analytics
+ */
+function jetpack_woocommerce_analytics_more_link() {
+	echo 'https://jetpack.com/support/';
+}
+add_action( 'jetpack_learn_more_button_woocommerce-analytics', 'jetpack_woocommerce_analytics_more_link' );
+
+function jetpack_woocommerce_analytics_more_info() {
+	esc_html_e(
+		'Enhanced analytics for WooCommerce and Jetpack users.'
+		, 'jetpack' );
+}
+add_action( 'jetpack_module_more_info_woocommerce-analytics', 'jetpack_woocommerce_analytics_more_info' );

modules/woocommerce-analytics/classes/wp-woocommerce-analytics-universal.php

@@ -0,0 +1,204 @@
+<?php
+
+/**
+* Jetpack_WooCommerce_Analytics_Universal
+*
+* @author greenafrican
+*/
+
+/**
+* Bail if accessed directly
+*/
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+class Jetpack_WooCommerce_Analytics_Universal {
+	public function __construct() {
+		add_action( 'woocommerce_after_add_to_cart_button', array( $this, 'add_to_cart' ) );
+		add_action( 'wp_head', array( $this, 'wp_head' ), 999999 );
+		add_action( 'wp_footer', array( $this, 'loop_add_to_cart' ) );
+		add_action( 'woocommerce_after_cart', array( $this, 'remove_from_cart' ) );
+		add_action( 'woocommerce_after_mini_cart', array( $this, 'remove_from_cart' ) );
+		add_filter( 'woocommerce_cart_item_remove_link', array( $this, 'remove_from_cart_attributes' ), 10, 2 );
+		add_action( 'woocommerce_after_single_product', array( $this, 'product_detail' ) );
+		// add_action( 'woocommerce_after_checkout_form', array( $this, 'checkout_process' ) );
+	}
+
+	public function wp_head() {
+
+		// If we're in the admin_area, return without inserting code.
+		if ( is_admin() ) {
+			return;
+		}
+
+		if ( ! class_exists( 'WooCommerce' ) ) {
+			return;
+		}
+
+		$async_code = "<script async src='https://stats.wp.com/s.js'></script>";
+
+		echo "$async_code\r\n";
+	}
+
+	public function add_to_cart() {
+
+		if ( ! is_single() ) {
+			return;
+		}
+
+		$blogid = Jetpack::get_option( 'id' );
+		global $product;
+
+		$product_sku_or_id = Jetpack_WooCommerce_Analytics_Utils::get_product_sku_or_id( $product );
+		$selector = ".single_add_to_cart_button";
+
+		wc_enqueue_js(
+			"window._wca = window._wca || [];
+			jQuery( '" . esc_js( $selector ) . "' ).click( function() {
+				_wca.track( {
+					'_en': 'woocommerce_analytics_add_to_cart',
+					'blog_id': " . esc_js( $blogid ) . ",
+					'pi': '" . esc_js( $product_sku_or_id ) . "',
+					'pn' : '" . esc_js( $product->get_title() ) . "',
+					'pq': jQuery( 'input.qty' ).val() ? jQuery( 'input.qty' ).val() : '1',
+				} );
+			} );"
+		);
+	}
+
+	public function loop_add_to_cart() {
+
+		if ( ! class_exists( 'WooCommerce' ) ) {
+			return;
+		}
+
+		$minimum_woocommerce_active = class_exists( 'WooCommerce' ) && version_compare( WC_VERSION, '3.0', '>=' );
+		if ( ! $minimum_woocommerce_active ) {
+			return;
+		}
+		$blogid = Jetpack::get_option( 'id' );
+		$selector = ".add_to_cart_button:not(.product_type_variable, .product_type_grouped)";
+
+		wc_enqueue_js(
+			"jQuery( '" . esc_js( $selector ) . "' ).click( function() {
+				var productSku = jQuery( this ).data( 'product_sku' );
+				var productID = jQuery( this ).data( 'product_id' );
+				var productDetails = {
+					'id': productSku ? productSku : productID,
+					'quantity': jQuery( this ).data( 'quantity' ),
+				};
+				_wca.track( {
+					'_en': 'woocommerce_analytics_product_view',
+					'blog_id': '" . esc_js( $blogid ) . "',
+					'pi': productDetails.id,
+				} );
+				_wca.track( {
+					'_en': 'woocommerce_analytics_add_to_cart',
+					'blog_id': " . esc_js( $blogid ) . ",
+					'pi': productDetails.id,
+					'pq': productDetails.quantity,
+				} );
+			} );"
+		);
+	}
+
+	public function remove_from_cart() {
+
+		// We listen at div.woocommerce because the cart 'form' contents get forcibly
+		// updated and subsequent removals from cart would then not have this click
+		// handler attached
+
+		$blogid = Jetpack::get_option( 'id' );
+		wc_enqueue_js(
+			"jQuery( 'div.woocommerce' ).on( 'click', 'a.remove', function() {
+				var productSku = jQuery( this ).data( 'product_sku' );
+				var productID = jQuery( this ).data( 'product_id' );
+				var quantity = jQuery( this ).parent().parent().find( '.qty' ).val()
+				var productDetails = {
+					'id': productSku ? productSku : productID,
+					'quantity': quantity ? quantity : '1',
+				};
+				_wca.track( {
+					'_en': 'woocommerce_analytics_remove_from_cart',
+					'blog_id': '" . esc_js( $blogid ) . "',
+					'pi': productDetails.id,
+					'pq': productDetails.quantity,
+				} );
+			} );"
+		);
+	}
+
+	/**
+	* Adds the product ID and SKU to the remove product link (for use by remove_from_cart above) if not present
+	*/
+	public function remove_from_cart_attributes( $url, $key ) {
+		if ( false !== strpos( $url, 'data-product_id' ) ) {
+			return $url;
+		}
+
+		$item = WC()->cart->get_cart_item( $key );
+		$product = $item[ 'data' ];
+
+		$new_attributes = sprintf( 'href="%s" data-product_id="%s" data-product_sku="%s"',
+			esc_attr( $url ),
+			esc_attr( $product->get_id() ),
+			esc_attr( $product->get_sku() )
+			);
+		$url = str_replace( 'href=', $new_attributes );
+		return $url;
+	}
+
+	public function product_detail() {
+
+		global $product;
+		$blogid = Jetpack::get_option( 'id' );
+		$product_sku_or_id = Jetpack_WooCommerce_Analytics_Utils::get_product_sku_or_id( $product );
+
+		$item_details = array(
+			'id' => $product_sku_or_id,
+			'name' => $product->get_title(),
+			'category' => Jetpack_WooCommerce_Analytics_Utils::get_product_categories_concatenated( $product ),
+			'price' => $product->get_price()
+		);
+		wc_enqueue_js(
+			"_wca.track( {
+				'_en': 'woocommerce_analytics_product_view',
+				'blog_id': '" . esc_js( $blogid ) . "',
+				'pi': '" . esc_js( $item_details['id'] ) . "',
+				'pn': '" . esc_js( $item_details['name'] ) . "',
+				'pc': '" . esc_js( $item_details['category'] ) . "',
+				'pp': '" . esc_js( $item_details['price'] ) . "'
+			} );"
+		);
+	}
+
+	// public function checkout_process() {
+  //
+	// 	$universal_commands = array();
+	// 	$cart = WC()->cart->get_cart();
+  //
+	// 	foreach ( $cart as $cart_item_key => $cart_item ) {
+	// 		/**
+	// 		* This filter is already documented in woocommerce/templates/cart/cart.php
+	// 		*/
+	// 		$product = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
+	// 		$product_sku_or_id = Jetpack_WooCommerce_Analytics_Utils::get_product_sku_or_id( $product );
+  //
+	// 		$item_details = array(
+	// 			'id' => $product_sku_or_id,
+	// 			'name' => $product->get_title(),
+	// 			'category' => Jetpack_WooCommerce_Analytics_Utils::get_product_categories_concatenated( $product ),
+	// 			'price' => $product->get_price(),
+	// 			'quantity' => $cart_item[ 'quantity' ]
+	// 		);
+  //
+	// 		array_push( $universal_commands, "ga( 'ec:addProduct', " . wp_json_encode( $item_details ) . " );" );
+	// 	}
+  //
+	// 	array_push( $universal_commands, "ga( 'ec:setAction','checkout' );" );
+  //
+	// 	wc_enqueue_js( implode( "\r\n", $universal_commands ) );
+	// }
+
+}

modules/woocommerce-analytics/classes/wp-woocommerce-analytics-utils.php

@@ -0,0 +1,63 @@
+<?php
+
+/**
+* Jetpack_WooCommerce_Analytics_Options provides a single interface to module options
+*
+* @author greenafrican
+*/
+
+/**
+* Bail if accessed directly
+*/
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+class Jetpack_WooCommerce_Analytics_Utils {
+	/**
+	 * Gets product categories or varation attributes as a formatted concatenated string
+	 * @param WC_Product
+	 * @return string
+	 */
+	public static function get_product_categories_concatenated( $product ) {
+		if ( ! class_exists( 'WooCommerce' ) ) {
+			return '';
+		}
+
+		if ( ! $product ) {
+			return '';
+		}
+
+		$variation_data = $product->is_type( 'variation' ) ? wc_get_product_variation_attributes( $product->get_id() ) : '';
+		if ( is_array( $variation_data ) && ! empty( $variation_data ) ) {
+			$line = wc_get_formatted_variation( $variation_data, true );
+		} else {
+			$out = array();
+			$categories = get_the_terms( $product->get_id(), 'product_cat' );
+			if ( $categories ) {
+				foreach ( $categories as $category ) {
+					$out[] = $category->name;
+				}
+			}
+			$line = join( "/", $out );
+		}
+		return $line;
+	}
+
+	/**
+	 * Gets a product's SKU with fallback to just ID. IDs are prepended with a hash symbol.
+	 * @param WC_Product
+	 * @return string
+	 */
+	public static function get_product_sku_or_id( $product ) {
+		if ( ! class_exists( 'WooCommerce' ) ) {
+			return '';
+		}
+
+		if ( ! $product ) {
+			return '';
+		}
+
+		return $product->get_sku() ? $product->get_sku() : $product->get_id();
+	}
+}

modules/woocommerce-analytics/wp-woocommerce-analytics.php

@@ -0,0 +1,48 @@
+<?php
+
+/**
+ * Jetpack_WooCommerce_Analytics is ported from the Jetpack_Google_Analytics code.
+ */
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+require_once( plugin_basename( 'classes/wp-woocommerce-analytics-utils.php' ) );
+require_once( plugin_basename( 'classes/wp-woocommerce-analytics-universal.php' ) );
+
+class Jetpack_WooCommerce_Analytics {
+
+	/**
+	 * @var Jetpack_WooCommerce_Analytics - Static property to hold our singleton instance
+	 */
+	static $instance = false;
+
+	/**
+	 * @var Static property to hold concrete analytics impl that does the work (universal or legacy)
+	 */
+	static $analytics = false;
+
+	/**
+	 * This is our constructor, which is private to force the use of get_instance()
+	 *
+	 * @return void
+	 */
+	private function __construct() {
+		$analytics = new Jetpack_WooCommerce_Analytics_Universal();
+	}
+
+	/**
+	 * Function to instantiate our class and make it a singleton
+	 */
+	public static function get_instance() {
+		if ( ! self::$instance ) {
+			self::$instance = new self;
+		}
+
+		return self::$instance;
+	}
+}
+
+global $jetpack_woocommerce_analytics;
+$jetpack_woocommerce_analytics = Jetpack_WooCommerce_Analytics::get_instance();