_config.php

<?php

use SilverStripe\Security\Member;
use SilverStripe\CMS\Model\SiteTree;
use SilverStripe\Assets\File;
use SilverStripe\SiteConfig\SiteConfig;
use SilverStripe\Control\Director;



Member::add_extension('FrameworkTestRole');
Member::add_extension('FileUploadRole');
SiteTree::add_extension('FrameworkTestSiteTreeExtension');
File::add_extension('FrameworkTestFileExtension');

if (class_exists('SiteTreeCMSWorkflow')) {
    SiteConfig::add_extension('CMSWorkflowSiteConfigDecorator');
    CMSWorkflowSiteConfigDecorator::apply_active_config();
}

if (!empty($_GET['db'])) {
    $enabletranslatable = $_GET['enabletranslatable'];
} elseif (!empty($_SESSION['db'])) {
    $enabletranslatable = $_SESSION['enabletranslatable'];
} else {
    $enabletranslatable = null;
}
if ($enabletranslatable) {
    SiteTree::add_extension('Translatable');
    SiteConfig::add_extension('Translatable');
}