Fixes a couple of problems with sales tax migration plus a couple of other problems.

application/migrations/sqlscripts/3.2.1_to_3.3.0.sql

@@ -148,6 +148,3 @@ ALTER TABLE `ospos_expenses`
 INSERT INTO `ospos_app_config` (`key`, `value`) VALUES
   ('default_receivings_discount_type', '0'),
   ('default_receivings_discount', '0');
-
-ALTER TABLE `ospos_suppliers`
-  CHANGE COLUMN `tax_id` `tax_id` VARCHAR(32) NULL;

application/migrations/sqlscripts/3.3.0_indiagst.sql

@@ -74,7 +74,7 @@ CREATE TABLE IF NOT EXISTS `ospos_tax_jurisdictions` (
 	) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1;
 
 ALTER TABLE `ospos_suppliers`
-	ADD COLUMN `tax_id` varchar(32) NOT NULL DEFAULT '' AFTER `account_number`;
+	ADD COLUMN `tax_id` varchar(32) DEFAULT NULL AFTER `account_number`;
 
 ALTER TABLE `ospos_tax_categories`
 	ADD COLUMN `deleted` int(1) NOT NULL DEFAULT 0 AFTER `tax_group_sequence`;

application/migrations/sqlscripts/3.3.0_indiagst1.sql

@@ -0,0 +1,6 @@
+UPDATE `ospos_suppliers`
+  SET `tax_id` = ''
+  WHERE `tax_id`IS NULL;
+
+ALTER TABLE `ospos_suppliers`
+	CHANGE COLUMN `tax_id` `tax_id` varchar(32) NOT NULL DEFAULT '';

application/migrations/sqlscripts/3.3.0_indiagst2.sql

@@ -0,0 +1,5 @@
+-- This is to cleanup any orphaned tax migration tables
+
+DROP TABLE IF EXISTS `ospos_tax_codes_backup`;
+DROP TABLE IF EXISTS `ospos_sales_taxes_backup`;
+DROP TABLE IF EXISTS `ospos_tax_code_rates_backup`;