Magento 2 Kategorienwähler in der Systemkonfiguration

Question

Wie man Kategorieselektor in der Systemkonfiguration in Magento 2 erhält?

Ich muss alle Ebenen der Kategorien im Admin-Konfigurationsbereich als Multi-Select-Option erhalten. Ich habe den folgenden Code hinzugefügt und erhalte das gewünschte Ergebnis. Aber ich möchte es mit rekursiver Funktion tun. Bitte hilf mir, das Gleiche zu tun.

namespace Vendor\Productslider\Model\Config\Source; 

use Magento\Framework\Option\ArrayInterface; 
use Magento\Catalog\Helper\Category; 

class Categorylist implements ArrayInterface 
{ 
    protected $_categoryHelper; 
    protected $categoryRepository; 

    public function __construct(
     \Magento\Catalog\Helper\Category $catalogCategory, 
     \Magento\Catalog\Model\CategoryRepository $categoryRepository 
     ) 
    { 
     $this->_categoryHelper = $catalogCategory; 
     $this->categoryRepository = $categoryRepository; 
    } 

    /* 
    * Return categories helper 
    */ 

    public function getStoreCategories($sorted = false, $asCollection = false, $toLoad = true) 
    { 
     return $this->_categoryHelper->getStoreCategories($sorted , $asCollection, $toLoad); 
    } 

    /* 
    * Option getter 
    * @return array 
    */ 
    public function toOptionArray() 
    { 


     $arr = $this->toArray(); 
     $ret = []; 

     foreach ($arr as $key => $value) 
     { 

      $ret[] = [ 
       'value' => $key, 
       'label' => $value 
      ]; 
     } 

     return $ret; 
    } 

    /* 
    * Get options in "key-value" format 
    * @return array 
    */ 
    public function toArray() 
    { 

     $categories = $this->getStoreCategories(true,false,true); 
     $categoryList = $this->renderCategories($categories); 
     return $categoryList; 
    } 

    public function renderCategories($_categories) 
    { 
     $categoryList = array(); 
     foreach ($_categories as $category){ 
      $categoryList[$category->getEntityId()] = __($category->getName()); // Main categories 

      $categoryObj = $this->categoryRepository->get($category->getId()); 
      $subcategories = $categoryObj->getChildrenCategories(); 
      foreach($subcategories as $subcategory) { 
       $categoryList[$subcategory->getEntityId()] = __('--'.$subcategory->getName()); // 1st level Sub categories 

       if($subcategory->hasChildren()) { 
        $childCategoryObj = $this->categoryRepository->get($subcategory->getId()); 
        $childSubcategories = $childCategoryObj->getChildrenCategories(); 
        foreach($childSubcategories as $childSubcategory) { 
         $categoryList[$childSubcategory->getEntityId()] = __('----'.$childSubcategory->getName()); // 2nd level Sub categories 
        } 
       } 
      } 
     } 

     return $categoryList;  
    } 

} 

Answer 1

Gott sei Dank !! Ich habe eine Lösung gefunden

namespace Vendor\Productslider\Model\Config\Source; 

use Magento\Framework\Option\ArrayInterface; 
use Magento\Catalog\Helper\Category; 

class Categorylist implements ArrayInterface 
{ 
    protected $_categoryHelper; 
    protected $categoryRepository; 
    protected $categoryList; 

    public function __construct(
     \Magento\Catalog\Helper\Category $catalogCategory, 
     \Magento\Catalog\Model\CategoryRepository $categoryRepository 
     ) 
    { 
     $this->_categoryHelper = $catalogCategory; 
     $this->categoryRepository = $categoryRepository; 
    } 

    /* 
    * Return categories helper 
    */ 

    public function getStoreCategories($sorted = false, $asCollection = false, $toLoad = true) 
    { 
     return $this->_categoryHelper->getStoreCategories($sorted , $asCollection, $toLoad); 
    } 

    /* 
    * Option getter 
    * @return array 
    */ 
    public function toOptionArray() 
    { 


     $arr = $this->toArray(); 
     $ret = []; 

     foreach ($arr as $key => $value) 
     { 

      $ret[] = [ 
       'value' => $key, 
       'label' => $value 
      ]; 
     } 

     return $ret; 
    } 

    /* 
    * Get options in "key-value" format 
    * @return array 
    */ 
    public function toArray() 
    { 

     $categories = $this->getStoreCategories(true,false,true); 
     $categoryList = $this->renderCategories($categories); 
     return $categoryList; 
    } 

    public function renderCategories($_categories) 
    { 
     foreach ($_categories as $category){ 
      $i = 0; 
      $this->categoryList[$category->getEntityId()] = __($category->getName()); // Main categories 
      $list = $this->renderSubCat($category,$i); 
     } 

     return $this->categoryList;  
    } 

    public function renderSubCat($cat,$j){ 

     $categoryObj = $this->categoryRepository->get($cat->getId()); 

     $level = $categoryObj->getLevel(); 
     $arrow = str_repeat("---", $level-1); 
     $subcategories = $categoryObj->getChildrenCategories(); 

     foreach($subcategories as $subcategory) { 
      $this->categoryList[$subcategory->getEntityId()] = __($arrow.$subcategory->getName()); 

      if($subcategory->hasChildren()) { 

       $this->renderSubCat($subcategory,$j); 

      } 
     } 

     return $this->categoryList; 
    } 
}