Improvements to invoice display and other misc items

modules/product/classes/Model/Product.php

@@ -12,7 +12,7 @@
  * Column Definitions:
  * + price_type: 0=One Time, 1=Recurring, 2=Trial
  */
-class Model_Product extends ORM_OSB {
+class Model_Product extends ORM_OSB implements Invoicable {
 	protected $_has_many = array(
 		'invoice'=>array('through'=>'invoice_item'),
 		'service'=>array('far_key'=>'id'),
@@ -48,6 +48,24 @@ class Model_Product extends ORM_OSB {
 
 	protected $_save_message = TRUE;
 
+	// Our required Interface Methods
+
+	public function invoice_item($item_type) {
+		switch ($item_type) {
+			case 0:
+			case 7:
+				return 'Service';
+			default:
+				return 'Product Charge';
+		}
+	}
+
+	public function invoice_title() {
+		return $this->title();
+	}
+
+	// Our local methods
+
 	// Our database index for pricing values
 	private $_price_options = array(
 		'base'=>'price_base',