how to get proper nested json format? - php

Question

I want to display the result of join query in nested JSON format but it will not work I am getting wrong input. I used two tables as
category_type={category_type_id,category_type_name,category_icon};
main_category={main_category_id,category_type_id,category_name}
I want display nested JSON result but not getting plz need solution.
Controller:
$data= DB::table('table_main_category')
->join('table_category_type','table_main_category.category_type_id','=','table_category_type.category_type_id')
->select('table_category_type.*','table_main_category.*')
->get();
return Response::json(array(
'success' => '1',
'data' => $data),
200
);
json output:
{
"success": "1",
"data": [
{
"category_type_id": 2,
"category_type": "Sports",
"category_icon": "http://192.168.1.132:8000/images/category/game.svg",
"main_category_id": 1,
"category_name": "Popular Sports"
},
{
"category_type_id": 2,
"category_type": "Sports",
"category_icon": "http://192.168.1.132:8000/images/category/game.svg",
"main_category_id": 2,
"category_name": "Team Sports"
}
]
}
required json:
"success": "1",
"data": [{
"category_type_id": 2,
"category_type": "Sports",
"category_icon": "http://192.168.1.132:8000/images/category/game.svg",
"main_category": {
"main_category_id": 1,
"category_name": "Popular Sports"
}
},
{
"category_type_id": 2,
"category_type": "Sports",
"category_icon": "http://192.168.1.132:8000/images/category/game.svg",
"main_category": {
"main_category_id": 2,
"category_name": "Team Sports"
}
}
]

Answer 1

A workaround could be to update the data before you send the Response:
foreach ($data->toArray() as $elem) {
$elem['main_category'] = [];
$elem['main_category']['main_category_id'] = $elem['main_category_id'];
unset($elem['main_category_id']);
// ... and so on
}

Answer 2

use this code to restructure your data :
$data= DB::table('table_main_category')
->join('table_category_type','table_main_category.category_type_id','=','table_category_type.category_type_id')
->select('table_category_type.*','table_main_category.*')
->get();
return Response::json(array(
'success' => '1',
'data' => $data.map( i => {
const {main_category_id ,category_name , ...j } = i ;
return ({...j , main_category: {
main_category_id,
category_name }
});
}) ,
200
);

Answer 3

You can use Eloquent relationship. First create your Models.
use Illuminate\Database\Eloquent\Model;
class MainCategory extends Model
{
public $table = 'table_main_category';
}
class CategoryType extends Model
{
public $table = 'table_category_type';
public function mainCategory()
{
return $this->belongsTo('App\MainCategory', 'category_type_id', 'category_type_id');
}
}
Then in your controller you can query it like
$data = CategoryType::with('mainCategory')->get();
This will load category types with their corresponding main categories