count query using eloquent relation laravel - php

Question

I have three tables called category, subcategory and product .
category has
id category_name
subcategory has
id category_id sucategory_name
and product table has
id category_id subcategory_id productname
now what i want is, i want to get the total number of product that belongs to the subcategory.
my categorymodel looks like
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\Relation;
use App\Subcategory;
class Category extends Model
{
protected $table = 'category';
public $timestamps = false;
public function subCategory(){
return $this->hasMany('App\Subcategory', 'category_id');
}
}
and my subcategory model
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Subcategory extends Model
{
protected $table = 'subcategory';
public $timestamps = false;
public function products(){
return $this->hasMany('App\Products', 'subcategory_id');
}
}
and finally my product model
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Products extends Model
{
protected $table = 'products';
}
however I have displayed all the sub-category names that belongs to the category by doing like this in my controller
$categories = Category::with('subCategory')->get();
I have already achieved below result in my view.
category 1
subcategory 1
subcategory 2
subcategory 3
category 2
subcategory 1
subcategory 2
subcategory 3
Now i just want to count the number of products that belongs to the subcategory like for exampole
category 1
subcategory 1 (20)
subcategory 2 (2)
subcategory 3 (3)
category 2
subcategory 1 (12)
subcategory 2 (11)
subcategory 3 (2)
How can I achieve such result?

Answer 1

$categories = Category::with('subCategory')->get();
foreach ($categories as $category)
{
echo "{$category->category_name}\n";
foreach ($category->subCategory as $subcategory)
{
echo "\t{$subcategory->subcategory_name} ({$subcategory->products()->count()})\n";
}
}
Just an idea. Adapt with your view code.
By the way, I think your product should not contain category_id because it already indirectly refer to its category via subcategory_id.