Fixes: Disabling the mass edit for the inventory line item fields...

Fixes: Disabling the mass edit for the inventory line item fields discount_amount and discount_percent

modules/Migration/schema/811_to_812.php

@@ -25,4 +25,7 @@ if (defined('VTIGER_UPGRADE')) {
 	// Resize column width to text (instead of varchar)
 	$db->pquery("ALTER TABLE vtiger_shorturls MODIFY COLUMN handler_data text");
 
+	// Disabling the mass edit for the inventory line item fields.
+	$db->pquery("UPDATE vtiger_field set masseditable = 0 where columnname in ('discount_percent','discount_amount') 
+	and tablename in ('vtiger_quotes','vtiger_purchaseorder','vtiger_salesorder','vtiger_invoice')", array());
 }