Item count isn't showed on parent category - php

Question

I'm trying to show items count on parent and on child category. So far the count is visible only on child category but when the item is assigned only to parent directory is showing 0. I have added this in my Category model
public function addRelation( $categoires )
{
$categoires->map(function( $item, $key)
{
$sub = $this->selectChild($item->id);
$item->itemCount = $this->getItemCount($item->id , $item->parent_id );
return $item = array_add($item, 'subCategory', $sub);
});
return $categoires;
}
public function getItemCount( $category_id, $parent_id )
{
if( $parent_id == 0)
{ // for root-caregory
$ids = Category::select('id')->where('parent_id', $category_id)->get();
$array = array();
foreach ($ids as $id)
{
$array[] = $id->id;
}
return Item::whereIn('category_id', $array )->count();
}
else
{
return Item::where('category_id', $category_id)->count();
}
}
In the controller
$Category = new Category;
$allCategories = $Category->getCategories();
return view('home', compact('allCategories'));
And in my blade
#foreach($allCategories as $category)
<div class="card-body">
<h4 class="card-title">{!!$category->title!!} <span class="badge badge-primary badge-pill">({!! $category->itemCount !!})</span></h4>
</div>
#endforeach
itemCount is (0) when item is in Parent category.

Answer 1

After Discution that we had it's a simlpe query that you want just do it like this :
public function getItemCount( $category_id)
{
return Item::where('category_id', $category_id)->count();
}
Or if you have a relationship you can simply do it like this :
public function addRelation( $categoires )
{
$categoires->map(function( $item, $key)
{
$sub = $this->selectChild($item->id);
$item->itemCount = $item->items()->count();
return $item = array_add($item, 'subCategory', $sub);
});
return $categoires;
}