How to create a nested-list of categories in Laravel?

Question

How can I create a nested list of categories in Laravel?

I want to create something like this:

• --- Php
• ------ Laravel

Answer 1

If someone needs a better answer look up my answer, it helped me, when I had faced with such a problem.

   class Category extends Model {

     private $descendants = [];

     public function children()
        {
            return $this->subcategories()->with('children');
        }

     public function hasChildren(){
            if($this->children->count()){
                return true;
            }

            return false;
        }

     public function findDescendants(Category $category){
            $this->descendants[] = $category->id;

            if($category->hasChildren()){
                foreach($category->children as $child){
                    $this->findDescendants($child);
                }
            }
        }

      public function getDescendants(Category $category){
            $this->findDescendants($category);
            return $this->descendants;
        }
 }

And In your Controller just test this:

$category = Category::find(1);
$category_ids = $category->getDescendants($category);

It will result ids in array all descendants of your category where id=1. then :

$products = Product::whereIn('category_id',$category_ids)->get();

You are welcome =)