From 1e7b8219f088f069b70d7ede70c4d01d39288b08 Mon Sep 17 00:00:00 2001
From: Janusz Dobrowolski <janusz@frontaccounting.eu>
Date: Sun, 13 Jun 2010 18:37:54 +0000
Subject: [PATCH] Documents inheritance added.

---
 includes/types.inc | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/includes/types.inc b/includes/types.inc
index 570f0c68..35ed2d84 100644
--- a/includes/types.inc
+++ b/includes/types.inc
@@ -47,6 +47,31 @@ define('ST_DIMENSION', 40);
 define ('ST_STATEMENT', 91);
 define ('ST_CHEQUE', 92);
 
+// document inheritance
+$document_child_types = array(
+		ST_SALESQUOTE => ST_SALESORDER,
+		ST_SALESORDER => ST_CUSTDELIVERY,
+		ST_CUSTDELIVERY => ST_SALESINVOICE,
+		ST_SALESINVOICE => ST_CUSTCREDIT,
+
+		ST_PURCHORDER => ST_SUPPRECEIVE,
+		ST_SUPPRECEIVE => ST_SUPPINVOICE,
+		ST_SUPPINVOICE => ST_SUPPCREDIT,
+);
+
+function get_child_type($type)
+{
+	global $document_child_types;
+	return isset($document_child_types[$type]) ? $document_child_types[$type] : 0;
+}
+
+function get_parent_type($type)
+{
+	global $document_child_types;
+	$child = array_search($type, $document_child_types);
+	return $child ? $child : 0;
+}
+
 //----------------------------------------------------------------------------------
 //		Bank transaction types
 //
-- 
2.30.2