From c557b33792de0b59f909d2661e30f6706a89f8c9 Mon Sep 17 00:00:00 2001
From: Joshua Davis <me@jdav.is>
Date: Wed, 19 Apr 2023 05:43:07 -0400
Subject: [PATCH] Fix and improve support for PMPro (Paid Memberships Pro)

While Tutor supports PMPro as a monetization engine, the current
implementation of get_orders_by_user_id() returns an empty orders array.

Fix this function to return orders captured in PMPro, implemented
and tested by Joshua Davis (@a11smiles)

- Add condition for PMPro and WooCommerce (both return shop_order
  for the post type).
- Add support for querying PMPro subscriptions
- Make the second inner join optional (for PMPro orders, the meta key
  _is_tutor_order_for_course isn't saved).

Was originally opened by Joshua Davis <me@jdav.is> @a11smiles as #419,
- commits and log messages squashed,
- rebased to current dev
- and spaces at end of lines
fixed by me.

Originally-From: Joshua Davis <me@jdav.is>
---
 classes/Utils.php                        | 60 +++++++++++++++++++++---
 templates/dashboard/purchase_history.php | 10 +++-
 2 files changed, 63 insertions(+), 7 deletions(-)

diff --git a/classes/Utils.php b/classes/Utils.php
index 2545fa8a13..b39d6c14ce 100644
--- a/classes/Utils.php
+++ b/classes/Utils.php
@@ -2657,6 +2657,49 @@ public function get_course_enrolled_ids_by_order_id( $order_id ) {
 		return false;
 	}
 
+	/**
+	 * @param $order_id
+	 *
+	 * @return array
+	 *
+	 */
+	public function get_subscriptions_by_order_id( $order_id ) {
+		global $wpdb;
+
+		// Return all children of a subscription
+		$args = array(
+			'post_parent' => $order_id,
+			'post_type'   => 'shop_subscription'
+		);
+		return get_children($args);
+	}
+
+	/**
+	 * @param $subscription_id
+	 *
+	 * @return object
+	 *
+	 */
+	public function get_subscription_by_subscription_id( $subscription_id ) {
+		global $wpdb;
+
+		// Returns subscription information
+		$subscription = $wpdb->get_row(
+			$wpdb->prepare(
+			    "SELECT subscriptions.*
+			       FROM {$wpdb->prefix}woocommerce_order_items items
+			  LEFT JOIN {$wpdb->prefix}woocommerce_order_itemmeta meta
+			         ON items.order_item_id = meta.order_item_id
+			        AND meta.meta_key = '_product_id'
+			  LEFT JOIN $wpdb->posts subscriptions
+			         ON meta.meta_value = subscriptions.ID
+			      WHERE `order_id` = %s
+			        AND `order_item_type` = 'line_item'", $subscription_id
+			)
+		);
+		return $subscription;
+	}
+
 	/**
 	 * Get wc product in efficient query
 	 *
@@ -6020,7 +6063,7 @@ public function get_orders_by_user_id( $user_id = 0, $period = '', $start_date =
 		$post_type = '';
 		$user_meta = '';
 
-		if ( 'wc' === $monetize_by ) {
+		if ( 'wc' === $monetize_by || 'pmpro' === $monetize_by ) {
 			$post_type = 'shop_order';
 			$user_meta = '_customer_user';
 		} elseif ( 'edd' === $monetize_by ) {
@@ -6028,6 +6071,13 @@ public function get_orders_by_user_id( $user_id = 0, $period = '', $start_date =
 			$user_meta = '_edd_payment_user_id';
 		}
 
+		$add_join = '';
+		if ($monetize_by !== 'pmpro') {
+			$add_join = "INNER JOIN {$wpdb->postmeta} tutor_order
+			                     ON id = tutor_order.post_id
+			                    AND tutor_order.meta_key = '_is_tutor_order_for_course'";
+		}
+
 		$period_query = '';
 
 		if ( '' !== $period ) {
@@ -6054,11 +6104,9 @@ public function get_orders_by_user_id( $user_id = 0, $period = '', $start_date =
 				"SELECT {$wpdb->posts}.*
 			FROM	{$wpdb->posts}
 					INNER JOIN {$wpdb->postmeta} customer
-							ON id = customer.post_id
-						   AND customer.meta_key = '{$user_meta}'
-					INNER JOIN {$wpdb->postmeta} tutor_order
-							ON id = tutor_order.post_id
-						   AND tutor_order.meta_key = '_is_tutor_order_for_course'
+					        ON id = customer.post_id
+					       AND customer.meta_key = '{$user_meta}'
+					{$add_join}
 			WHERE	post_type = %s
 					AND customer.meta_value = %d
 					{$period_query}
diff --git a/templates/dashboard/purchase_history.php b/templates/dashboard/purchase_history.php
index 11768ad28e..8ce094274c 100644
--- a/templates/dashboard/purchase_history.php
+++ b/templates/dashboard/purchase_history.php
@@ -105,7 +105,7 @@
 				<tbody>
 					<?php foreach ( $orders as $order ) : ?>
 						<?php
-						if ( 'wc' === $monetize_by ) {
+						if ( 'wc' === $monetize_by || 'pmpro' === $monetize_by ) {
 							$wc_order          = wc_get_order( $order->ID );
 							$price             = tutor_utils()->tutor_price( $wc_order->get_total() );
 							$raw_price         = $wc_order->get_total();
@@ -161,6 +161,14 @@
 										echo '<div>' . esc_html( get_the_title( $course['course_id'] ) ) . '</div>';
 									}
 								}
+								if ( $monetize_by === 'pmpro') {
+									$subscriptions = tutor_utils()->get_subscriptions_by_order_id( $order->ID );
+									if ( tutor_utils()->count( $subscriptions ) ) {
+										foreach ( $subscriptions as $subscription ) {
+											echo '<div>Subscription - ' . esc_html( tutor_utils()->get_subscription_by_subscription_id( $subscription->ID )->post_title ) . '</div>';
+										}
+									}
+								}
 								?>
 							</td>