Laravel Query Builder create looping data from category - php

Question

I am quite new in Laravel. I've googled with this keyword but no luck.
I use Laravel 8. Currently I need to view data from each category, so it will be like this on blade:
cat A
product A1 <img src=(get from thumbnail)>
product A2 <img src=(get from thumbnail)>
cat B
product B1 <img src=(get from thumbnail)>
product B2 <img src=(get from thumbnail)>
etc...
Currently my controller is:
$categories = DB::table('tbl_categories')
->orderBy('name')
->get();
foreach($categories as $key) {
$data = DB::table('tbl_product')
->where('status','Enable')
->where('category_id',$key->id)
->get();
}
$thumbnail = DB::table('tbl_thumbnails')
->where('product_id',$data[0]->id)
->get();
return view('/products', ['categories' => $categories, 'data' => $data, 'thumbnail' => $thumbnail]);
in my blade:
#foreach($categories as $discover_category)
<div>
#foreach($data as $discover)
#foreach($thumbnail as $a)
<!-- product name and thumbnail in here-->
#endif
#endif
</div>
#endif
But the result is now show only last category_id. please help. GBU.

Answer 1

you need to use first() to get single value like this
foreach($categories as $category) {
$products = DB::table('tbl_product')
->where('status','Enable')
->where('category_id',$category->id)
->get();
foreach ($products as $product) {
$thumbnail = DB::table('tbl_thumbnails')
->where('product_id',$product->id)
->first();
// assign value to $product
$product->thumbnail = $thumbnail;
}
// assign value to $category
$category->products = $products;
}
then in view you can use like
#foreach($categories as $category)
<div>
#foreach($category->products as $product)
<div>
<p>{{$product->name}}</p>
<p>{{$product->thumbnail->id}}</p>
</div>
<!-- product name and thumbnail in here-->
#endif
</div>
#endif

Answer 2

You can use Eloquent ORM, Just simply use this kind of code on your category model like:
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class Category extends Model
{
/**
* Get the products for the category.
*/
public function products()
{
return $this->hasMany(Product::class);
}
}
On controller like
$categories = Category::all();
return view('products', ['categories' => $categories]);
On Blade like
#foreach($categories as $category)
<div>
<div>{{ $category->name }}</div>
#foreach($category->products as $products) // here this products object called form model
#foreach($products as $product)
<!-- product name and thumbnail in here-->
#endforreach
#endforreach
</div>
#endforeach
Note
Note: You must perfectly make the relationship between the products table and categories table. Products table must have a column named category_id