How to map Laravel API resources for Non-Related Models - laravel

Question

Hi I'm creating non related model resources. Inventories and Categories. They have child relationship models but they are not connected directly.
Sample:
{
"data": {
"inventories": [
{
"id": 1,
"user_id": 1,
"sub_category_id": 6,
"created_at": "2019-03-08 03:00:00",
"updated_at": "2019-03-08 03:00:00",
"deleted_at": null,
"get_inventory_details": {
"id": 1,
"inventory_id": 1,
"image_path": "Pahiram-Drone1-1.png",
"name": "Drone i1",
"description": "Drone i1 The Best Drone yet!",
"quantity": 10,
"cost_per_day": 1000,
"cost_per_hour": 100,
"status": "0",
"created_at": "2019-03-08 03:00:00",
"updated_at": "2019-03-08 03:00:00",
"deleted_at": null
}
}
],"categories": [
{
"id": 1,
"category_id": 1,
"parent_id": null,
"created_at": "2019-03-08 03:00:00",
"updated_at": "2019-03-08 03:00:00",
"deleted_at": null,
"get_sub_category_details": {
"id": 1,
"sub_category_id": 1,
"category_type_id": 1,
"name": "Drone DJI 1",
"description": "Drone DJI 1",
"created_at": "2019-03-08 03:34:23",
"updated_at": "2019-03-08 03:34:23",
"deleted_at": null
}
}
]
}
}
This is my sample data
It works with:
public function toArray($request)
{
return parent::toArray($request);
}
But not:
public function toArray($request)
{
return [
'inventory_ids' => $this->inventories->id,
'category_ids' => $this->categories->id
];
}
My expected result is to be able to map my response.

Answer 1

You Don't access direct id from categories and inventories, because its an array not object.
This should be usefull for you.
$categoryIds = Collection::make($this->categories)->pluck('id')->toArray();
$inventoryIds = Collection::make($this->inventories)->pluck('id')->toArray();
return [
'category_ids' => $categoryIds,
'inventory_ids' => $inventoryIds
];