installscript to create website/storegroup/store + root-category

directsale_setup_mysql4-install-0.1.0.php

<?php
/**
 * Created by PhpStorm.
 * User: rhutterer
 * Date: 02.07.14
 * Time: 08:55
 */
$this->startSetup();
//#addWebsite
/** @var $website Mage_Core_Model_Website */
//load base website and rename it to europa
Mage::registry('isSecureArea');

$directSaleWebsite = Mage::getModel('core/website');
$directSaleWebsite->setCode('direct_sale')
    ->setName('Werksverkauf')
    ->save();


// Force the store to be admin
Mage::app()->setUpdateMode(false);
Mage::app()->setCurrentStore(Mage_Core_Model_App::ADMIN_STORE_ID);

// Create category object
$directSaleCategory = Mage::getModel('catalog/category');
$directSaleCategory->setStoreId(Mage_Core_Model_App::ADMIN_STORE_ID); // No store is assigned to this category

$data = array();
$data['name'] = 'Directsale';
$data['path'] = "1"; // this is the catgeory path - 1 for root category
$data['display_mode'] = "PRODUCTS";
$data['is_active'] = 1;

$directSaleCategory->addData($data);
$directSaleCategory->save();


////#addStoreGroup
///** @var $storeGroup Mage_Core_Model_Store_Group */
$storeGroup = Mage::getModel('core/store_group');
$storeGroup->setWebsiteId($directSaleWebsite->getId())
    ->setName('Directsale')
    ->setRootCategoryId($directSaleCategory->getId())
    ->save();

////#addStore
///** @var $store Mage_Core_Model_Store */
$deStoreView = Mage::getModel('core/store');
$deStoreView->setCode('direct_de')
    ->setWebsiteId($storeGroup->getWebsiteId())
    ->setGroupId($storeGroup->getId())
    ->setName('Deutsch')
    ->setIsActive(1)
    ->save();

$this->endSetup();

directsale_setup_mysql4-upgrade-0.1.0-0.2.0.php

<?php
/**
 * Created by PhpStorm.
 * User: rhutterer
 * Date: 02.07.14
 * Time: 10:54
 */

$this->startSetup();

//set layout and design for directsale website

$directSaleWebsite = Mage::getModel('core/website')->load('direct_sale', 'code');

$this->setConfigData('design/theme/default', 'werksverkauf', 'websites', $directSaleWebsite->getId());

//set deliverycountry for directsale website
$countryAllowPath = 'general/country/allow';
$countryAllowValue = 'DE';
$this->setConfigData($countryAllowPath, $countryAllowValue, 'websites', $directSaleWebsite->getId());


$this->endSetup();