Dfrnhjy

I'm getting all the categories in system.xml using

<?php
namespace VenderModuleModelConfigSource;

use MagentoFrameworkOptionArrayInterface;

class Category implements ArrayInterfaceint $pageSize
 * @return MagentoCatalogModelResourceModelCategoryCollection or array
 */


 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("/", $path);
 array_pop($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 when I submit my extension to magento QA then they give me the error

now how can I solve this? they are saying that I'm duplicating the class the which core class I can use to get all categories like that

You should try not to use a "core-like" class name. I doubt, it is because you named your class as Category which is already present in the Magento core.

You can change it to something like Catlist at least it doesn't seem to duplicate any existing core class and instead more like what it seems to, which is Category list.