Refactor update scripts to only be executed once, clear rows

KwcShop/Kwc/Shop/Cart/Plugins/Voucher/Update/20150309Legacy00001.php

@@ -0,0 +1,43 @@
+<?php
+class KwcShop_Kwc_Shop_Cart_Plugins_Voucher_Update_20150309Legacy00001 extends Kwf_Update
+{
+    public function update()
+    {
+        $db = Kwf_Registry::get('db');
+        $executed = $db->fetchOne("SHOW tables LIKE 'kwc_shop_vouchers'");
+        if ($executed) return;
+
+        $db->query(" CREATE TABLE  IF NOT EXISTS `kwc_shop_vouchers` (
+                `id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY ,
+                `code` VARCHAR( 20 ) NOT NULL ,
+                `amount` DECIMAL( 10, 2 ) NOT NULL ,
+                `date` DATETIME NOT NULL ,
+                `comment` TEXT NOT NULL
+            ) ENGINE = InnoDB;
+
+            ALTER TABLE `kwc_shop_vouchers` ADD UNIQUE (`code`) ;
+            ALTER TABLE `kwc_shop_vouchers` CHANGE `id` `id` INT( 11 ) UNSIGNED NOT NULL AUTO_INCREMENT  ;
+
+            CREATE TABLE  IF NOT EXISTS `kwc_shop_voucher_history` (
+                `id` INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY ,
+                `voucher_id` INT UNSIGNED NOT NULL ,
+                `order_id` INT UNSIGNED NULL ,
+                `amount` DECIMAL( 10, 2 ) NOT NULL ,
+            INDEX ( `voucher_id` )
+            ) ENGINE = InnoDB ;
+
+            ALTER TABLE `kwc_shop_voucher_history` ADD INDEX ( `order_id` )  ;
+            ALTER TABLE `kwc_shop_voucher_history` ADD `date` DATETIME NOT NULL ,
+            ADD `comment` TEXT NOT NULL ;
+            ALTER TABLE `kwc_shop_voucher_history` ADD FOREIGN KEY ( `voucher_id` ) REFERENCES `kwc_shop_vouchers` (
+            `id`
+            );
+
+            ALTER TABLE `kwc_shop_voucher_history` ADD FOREIGN KEY ( `order_id` ) REFERENCES `kwc_shop_orders` (
+            `id`
+            );
+
+             ALTER TABLE `kwc_shop_voucher_history` CHANGE `order_id` `order_id` INT( 10 ) UNSIGNED NULL  ;
+        ");
+    }
+}

KwcShop/Kwc/Shop/Products/Directory/Trl/Update/20150309Legacy00001.sql

@@ -1,4 +1,4 @@
-CREATE TABLE  `kwc_shop_products_trl` (
+CREATE TABLE  IF NOT EXISTS `kwc_shop_products_trl` (
 `component_id` VARCHAR(255) NOT NULL ,
 `title` VARCHAR( 200 ) NOT NULL ,
 `visible` TINYINT NOT NULL ,

KwcShop/Kwc/Shop/Products/Directory/Update/20150309Shop00004.php

@@ -9,6 +9,7 @@ public function update()
             $row->size = (int)$row->size_backup;
             $row->amount = (int)$row->amount_backup;
             $row->save();
+            Kwf_Model_Abstract::clearAllRows();
         }
     }
 }