File Controllers/HttpView/AdminAjax/CatalogSelectWidgetAjaxController.inc.php

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<?php

/* --------------------------------------------------------------
   CatalogSelectWidgetAjaxController.inc.php 2017-09-11
   Gambio GmbH
   http://www.gambio.de
   Copyright (c) 2017 Gambio GmbH
   Released under the GNU General Public License (Version 2)
   [http://www.gnu.org/licenses/gpl-2.0.html]
   --------------------------------------------------------------
*/


/**
 * Class CatalogSelectWidgetAjaxController
 *
 * This ajax controller is used by the catalog selector widget to fetch all products and categories in the shop.
 *
 * @category   System
 * @package    AdminHttpViewControllers
 * @extends    AdminHttpViewController
 */
class CatalogSelectWidgetAjaxController extends AdminHttpViewController
{
    /**
     * @var CategoryReadService
     */
    protected $categoryReadService;
    
    /**
     * @var ProductReadServiceInterface
     */
    protected $productReadService;
    
    /**
     * @var LanguageCode
     */
    protected $languageCode;
    
    
    /**
     * Init
     */
    public function init()
    {
        $this->categoryReadService = StaticGXCoreLoader::getService('CategoryRead');
        $this->productReadService  = StaticGXCoreLoader::getService('ProductRead');
        
        $languageProvider   = MainFactory::create('LanguageProvider', StaticGXCoreLoader::getDatabaseQueryBuilder());
        $this->languageCode = $languageProvider->getCodeById(new IdType((int)$_SESSION['languages_id']));
    }
    
    
    /**
     * Returns the categorie tree of the shop.
     *
     * @return bool|\JsonHttpControllerResponse
     * @throws \AuthenticationException
     */
    public function actionGetCategoriesTree()
    {
        if(!$this->_isAdmin())
        {
            throw new AuthenticationException('No admin privileges. Please contact the administrator.');
        }
        
        $response = [
            'id'       => 0,
            'name'     => TEXT_TOP,
            'children' => $this->getCategoriesTreeData($withProducts = false),
        ];
        
        return MainFactory::create('JsonHttpControllerResponse', $response);
    }
    
    
    /**
     * Returns the categorie tree of the shop including all products.
     *
     * @return bool|\JsonHttpControllerResponse
     * @throws \AuthenticationException
     */
    public function actionGetProductsTree()
    {
        if(!$this->_isAdmin())
        {
            throw new AuthenticationException('No admin privileges. Please contact the administrator.');
        }
        
        $response = [
            'id'       => 0,
            'text'     => TEXT_TOP,
            'children' => $this->getCategoriesTreeData($withProducts = true),
            'products' => $this->getCategoryProducts(new IdType(0)),
        ];
        
        return MainFactory::create('JsonHttpControllerResponse', $response);
    }
    
    
    /**
     * Check if the customer is the admin.
     *
     * @return bool Is the customer the admin?
     */
    protected function _isAdmin()
    {
        try
        {
            $this->validateCurrentAdminStatus();
            
            return true;
        }
        catch(LogicException $exception)
        {
            return false;
        }
    }
    
    
    /**
     * Collects the data for the categories tree.
     *
     * @param bool $withProducts
     * @param null $parentId
     *
     * @return array
     */
    protected function getCategoriesTreeData($withProducts = false, $parentId = null)
    {
        $return     = [];
        $categories = $this->categoryReadService->getCategoryList($this->languageCode, $parentId);
        
        /**
         * @var CategoryListItem $product
         */
        foreach($categories->getArray() as $category)
        {
            if($withProducts)
            {
                $return[] = [
                    'id'       => $category->getCategoryId(),
                    'text'     => $category->getName(),
                    'children' => $this->getCategoriesTreeData($withProducts, new IdType($category->getCategoryId())),
                    'products' => $this->getCategoryProducts(new IdType($category->getCategoryId())),
                ];
            }
            else
            {
                $return[] = [
                    'id'       => $category->getCategoryId(),
                    'text'     => $category->getName(),
                    'children' => $this->getCategoriesTreeData($withProducts, new IdType($category->getCategoryId())),
                ];
            }
        }
        
        return $return;
    }
    
    
    /**
     * Collects the data of all products of a category.
     *
     * @param null $categoryId
     *
     * @return array
     */
    protected function getCategoryProducts($categoryId = null)
    {
        $return   = [];
        $products = $this->productReadService->getProductList($this->languageCode, $categoryId);
        
        /**
         * @var ProductListItem $product
         */
        foreach($products->getArray() as $product)
        {
            $return[] = [
                'id'   => $product->getProductId(),
                'text' => $product->getName(),
            ];
        }
        
        return $return;
    }
}

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