Dtjytyk

I would like to display *Category Tree Names** in multi select field in magento 2 admin end?

I have tried with below code but displaying only first cateogires could you please any one help on this?

$field = $fieldset->addField(
 'wp_test',
 'multiselect', 
 [
 'name' => 'wp_test',
 'label' => __("Test"),
 'values' => $categorylistsource->toOptionArray(),
 'value' => $this->_getTest(),
 'title' => __('Test.'),
 'note' => __('Test')

 ]
 );

HelloConfigurableSkuModelConfigSource

<?php
/**

@copyright Copyright
*/
namespace HelloConfigurableSkuModelConfigSource;

use MagentoFrameworkOptionArrayInterface;

class Categorylist implements ArrayInterface

 protected $_categoryFactory;
 protected $_categoryCollectionFactory;

 public function __construct(
 MagentoCatalogModelCategoryFactory $categoryFactory,
 MagentoCatalogModelResourceModelCategoryCollectionFactory $categoryCollectionFactory
 )
 
 $this->_categoryFactory = $categoryFactory;
 $this->_categoryCollectionFactory = $categoryCollectionFactory;
 

 public function getCategoryCollection($isActive = true, $level = false, $sortBy = false, $pageSize = false)
 
 $collection = $this->_categoryCollectionFactory->create();
 $collection->addAttributeToSelect('*');

 // select only active categories
 if ($isActive) 
 $collection->addIsActiveFilter();
 

 // select categories of certain level
 if ($level) 
 $collection->addLevelFilter($level);
 

 // sort categories by some value
 if ($sortBy) 
 $collection->addOrderField($sortBy);
 

 // select certain number of categories
 if ($pageSize) 
 $collection->setPageSize($pageSize);
 

 return $collection;
 

 public function toOptionArray()
 
 $arr = $this->_toArray();
 $ret = [];

 foreach ($arr as $key => $value)
 
 $ret[] = [
 'value' => $key,
 'label' => $value
 ];
 

 return $ret;
 

 private function _toArray()
 
 $categories = $this->getCategoryCollection(true, false, false, false);

 $catagoryList = array();
 foreach ($categories as $category)
 
 $catagoryList[$category->getEntityId()] = __($this->_getParentName($category->getPath()) . $category->getName());
 

 return $catagoryList;
 

 private function _getParentName($path = '')
 
 $parentName = '';
 $rootCats = array(1,2);

 $catTree = explode("/", $path);
 // Deleting category itself
 array_pop($catTree);

 if($catTree && (count($catTree) > count($rootCats)))
 
 foreach ($catTree as $catId)
 
 if(!in_array($catId, $rootCats))
 
 $category = $this->_categoryFactory->create()->load($catId);
 $categoryName = $category->getName();
 $parentName .= $categoryName . ' -> ';
 
 
 

 return $parentName;
 

But As per the above logic displaying only single line but i need to display like tree as mentioned below screenshot. how to achieve?

OUT PUT I WANT:-

please follow the below logic to get the category collection as tree structure. please let me know if u need any help.

<?php
namespace HelloConfigurableSkuModelConfigSource;

use MagentoFrameworkOptionArrayInterface;
use MagentoCatalogHelperCategory;

class Categorylist implements ArrayInterface

 protected $_categoryHelper;
 protected $categoryRepository;
 protected $categoryList;

 public function __construct(
 MagentoCatalogHelperCategory $catalogCategory,
 MagentoCatalogModelCategoryRepository $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;
 

?>