Laravel : Three table with relationship to get data - laravel

Question

I have a 3 table in my app.products,category,attributes
product hasMany category and category hasMany attributes relationship.
I want to get all products with Category details and catgoey attributes detail in json format.How can i do this?
Currently i am trying with this function in my controller:
public function index()
{
$productDetails = Product::all();
if(!empty($productDetails)) {
foreach ($productDetails as $key => $value) {
//print_r($value->id."</br>");
}
}
}
Output which i want :
{
"productInformation": {
"id": 1,
"name": "productone",
"status": "Active",
"CategoryDetails": [
{
"id": 1,
"product_id": 1,
"categoryTitle": "categoryone",
"attribute" : [
{
"id": 1,
"product_id": 1,
"category_id": 1,
"title": "attrib-title-one",
},
{
"id": 2,
"product_id": 1,
"category_id": 1,
"title": "attrib-title-two",
},
]
}
]
}
}
relationship :
On categories table
$table->foreign('product_id')->references('id')->on('products');
On attributes table :
$table->foreign('product_id')->references('id')->on('products');
$table->foreign('category_id')->references('id')->on('categories');
How can i do this ?

Answer 1

Your Product Model
public function categories(){
return $this->hasMany('App\Category','product_id');
}
Category Model
public function attributes(){
return $this->hasMany('App\Attribute','cat_id');
}
In your Controller
public function index()
{
$productDetails = Product::with('catgories.attributes')->get();
if(!empty($productDetails)) {
$jsonData = json_encode($productDetails->toArray());
}
}

Answer 2

You can define your relationship inside models for different categories & attributes, need to define a hasMany relationship in products Model for Categories(named categories), then another hasMany in categories(named attributes) model for attributes. After that you can follow this process to prepare your data array
$productDetails = Product::all();
if(!empty($productDetails)) {
foreach ($productDetails as $key => $value) {
$productDetails[$key]['categorieDetails'] = $productDetails[$key]->categories;
foreach ($productDetails[$key]['categorieDetails'] as $key2 => $value2) {
$productDetails[$key]['categorieDetails'][$key2]['
attribute'] = $productDetails[$key]->categorieDetails[$key2]->attributes;
}
}
}
Then you can use json_encode for produce your json data

Answer 3

In Your Controller
public function index()
{
$productDetails = Product::with('catgories.attributes')->get();
return response()->json($productDetails);
}