wc_delete_shop_order_transients functions and trigger when order status updates. Closes #4875

includes/admin/post-types/meta-boxes/class-wc-meta-box-order-data.php

@@ -395,8 +395,6 @@ class WC_Meta_Box_Order_Data {
 		// Order status
 		$order->update_status( $_POST['order_status'] );
 
-		delete_transient( 'woocommerce_processing_order_count' );
+		wc_delete_shop_order_transients( $post_id );
-
-		$wpdb->query( "DELETE FROM `$wpdb->options` WHERE `option_name` LIKE ('_transient_wc_report_%') OR `option_name` LIKE ('_transient_timeout_wc_report_%')" );
 	}
 }

includes/class-wc-order.php

@@ -1307,7 +1307,7 @@ class WC_Order {
 
 		}
 
-		delete_transient( 'woocommerce_processing_order_count' );
+		wc_delete_shop_order_transients( $this->id );
 	}
 
 

includes/wc-order-functions.php

@@ -325,3 +325,27 @@ function wc_processing_order_count() {
 	return $order_count;
 }
 
+/**
+ * Clear all transients cache for order data.
+ *
+ * @param int $post_id (default: 0)
+ */
+function wc_delete_shop_order_transients( $post_id = 0 ) {
+	global $wpdb;
+
+	$post_id = absint( $post_id );
+
+	// Clear core transients
+	$transients_to_clear = array(
+		'woocommerce_processing_order_count'
+	);
+
+	foreach( $transients_to_clear as $transient ) {
+		delete_transient( $transient );
+	}
+
+	// Clear transients for which we don't have the name
+	$wpdb->query( "DELETE FROM `$wpdb->options` WHERE `option_name` LIKE ('_transient_wc_report_%') OR `option_name` LIKE ('_transient_timeout_wc_report_%')" );
+
+	do_action( 'woocommerce_delete_shop_order_transients', $post_id );
+}