(Shopware Plugin) If a customer hits a category that does not belong to the current subshob - redirect him / her to index page

SwagCategoryForward.php

<?php


/**
 * The Bootstrap class is the main entry point of any shopware plugin.
 *
 * Short function reference
 * - install: Called a single time during (re)installation. Here you can trigger install-time actions like
 *   - creating the menu
 *   - creating attributes
 *   - creating database tables
 *   You need to return "true" or array('success' => true, 'invalidateCache' => array()) in order to let the installation
 *   be successfull
 *
 * - update: Triggered when the user updates the plugin. You will get passes the former version of the plugin as param
 *   In order to let the update be successful, return "true"
 *
 * - uninstall: Triggered when the plugin is reinstalled or uninstalled. Clean up your tables here.
 */
class Shopware_Plugins_Frontend_SwagCategoryForward_Bootstrap extends Shopware_Components_Plugin_Bootstrap
{

    public function getVersion()
    {
        return '1.0.0';
    }

    public function getLabel()
    {
        return 'SwagCategoryForward';
    }

    public function uninstall()
    {
        return true;
    }

    public function update($oldVersion)
    {
        return true;
    }

    public function install()
    {

        $this->subscribeEvent(
            'Enlight_Controller_Action_PreDispatch_Frontend_Listing', 'onRedirectCategories'
        );

        return true;
    }

    public function onRedirectCategories(\Enlight_Event_EventArgs $args)
    {
        /** @var \Enlight_Controller_Action $controller */
        $controller = $args->getSubject();
        $request = $controller->Request();

        $currentCategory = $request->getParam('sCategory');
        if (!$currentCategory) {
            return;
        }

        if (!Shopware() || !Shopware()->Shop() || !Shopware()->Shop()->getCategory()) {
            return;
        }

        $shopMainCategory = Shopware()->Shop()->getCategory();
        if (!$shopMainCategory || !$shopMainCategory->getId()) {
            return;
        }
        $shopMainCategoryId = $shopMainCategory->getId();

        $sql = 'SELECT * FROM s_categories WHERE id=? and path LIKE ?';
        $result = Shopware()->Db()->fetchOne($sql, array($currentCategory, "%|{$shopMainCategoryId}|%"));

        if (!$result) {
            $controller->redirect(
                array(
                    'controller' => 'index',
                    'action' => 'index',
                ),
                array('code' => 301)
            );
        }
    }
}