first commit

modules/x13import/upgrade/install-4.1.0.php

@@ -0,0 +1,46 @@
+<?php
+
+if (!defined('_PS_VERSION_')) {
+    exit;
+}
+
+require_once (dirname(__FILE__) . '/../x13import.php');
+
+/**
+ * @param $module x13import
+ * @return bool
+ */
+function upgrade_module_4_1_0($module)
+{
+    $pairs = Db::getInstance()->executeS('
+        SELECT CONCAT(`id_ximport_category`, ".", `id_category`) AS pair, count(*) AS total
+        FROM `' . _DB_PREFIX_ . 'ximport_category_additional`
+        GROUP BY `pair`
+        HAVING `total` > 1
+        ORDER BY `total` DESC'
+    );
+
+    foreach ($pairs as $row)
+    {
+        $pair = explode(".", $row['pair']);
+
+        Db::getInstance()->execute('
+            DELETE FROM `' . _DB_PREFIX_ . 'ximport_category_additional`
+            WHERE `id_ximport_category` = ' . (int)$pair[0] . '
+                AND `id_category` = ' . (int)$pair[1]
+        );
+
+        Db::getInstance()->execute('
+            INSERT INTO `' . _DB_PREFIX_ . 'ximport_category_additional` 
+                (`id_ximport_category`, `id_category`)
+            VALUES (' . (int)$pair[0] . ', ' . (int)$pair[1] . ')'
+        );
+    }
+
+    Db::getInstance()->execute('
+        ALTER TABLE `' . _DB_PREFIX_ . 'ximport_category_additional` DROP INDEX `category`;
+        ALTER TABLE `' . _DB_PREFIX_ . 'ximport_category_additional` ADD UNIQUE KEY `category` (`id_ximport_category`, `id_category`);'
+    );
+
+    return true;
+}