Cách sử dụng CustomerResource, CustomerResource::collection để chuyển dữ liệu về dạn Json (ok)

Nhưng chú ý với v8x trở lên nó đã hỗ trợ sẵn sàng chuyển sang json rồi 😒

php artisan make:resource CustomerResource

C:\xampp\htdocs\api\app\Http\Resources\CustomerResource.php

<?php
namespace App\Http\Resources;
use Illuminate\Http\Resources\Json\JsonResource;
class CustomerResource extends JsonResource {
  /**
   * Transform the resource into an array.
   *
   * @param  \Illuminate\Http\Request  $request
   * @return array|\Illuminate\Contracts\Support\Arrayable|\JsonSerializable
   */
  public function toArray($request) {
    return parent::toArray($request);
  }
}

Áp dụng C:\xampp\htdocs\api\app\Http\Controllers\CustomerController.php

<?php
namespace App\Http\Controllers;
use App\Models\Customer;
use Illuminate\Http\Request;
use App\Http\Resources\CustomerResource;
class CustomerController extends Controller {
  /**
   * Display a listing of the resource.
   *
   * @return \Illuminate\Http\Response
   */
  public function index() {
    return Customer::all();
  }
  /**
   * Show the form for creating a new resource.
   *
   * @return \Illuminate\Http\Response
   */
  public function create() {
    //
  }
  /**
   * Store a newly created resource in storage.
   *
   * @param  \Illuminate\Http\Request  $request
   * @return \Illuminate\Http\Response
   */
  public function store(Request $request) {
    //
  }
  /**
   * Display the specified resource.
   *
   * @param  \App\Models\Customer  $customer
   * @return \Illuminate\Http\Response
   */
  public function show(Customer $customer) {
    return new CustomerResource::find($customer);
  }
  /**
   * Show the form for editing the specified resource.
   *
   * @param  \App\Models\Customer  $customer
   * @return \Illuminate\Http\Response
   */
  public function edit(Customer $customer) {
    //
  }
  /**
   * Update the specified resource in storage.
   *
   * @param  \Illuminate\Http\Request  $request
   * @param  \App\Models\Customer  $customer
   * @return \Illuminate\Http\Response
   */
  public function update(Request $request, Customer $customer) {
    //
  }
  /**
   * Remove the specified resource from storage.
   *
   * @param  \App\Models\Customer  $customer
   * @return \Illuminate\Http\Response
   */
  public function destroy(Customer $customer) {
    //
  }
}

Phiên bản mới chúng ra chỉ cần

<?php
namespace App\Http\Controllers;
use App\Models\Customer;
use Illuminate\Http\Request;
use App\Http\Resources\CustomerResource;
class CustomerController extends Controller {
  /**
   * Display a listing of the resource.
   *
   * @return \Illuminate\Http\Response
   */
  public function index() {
    return Customer::all();
  }
  /**
   * Show the form for creating a new resource.
   *
   * @return \Illuminate\Http\Response
   */
  public function create() {
    //
  }
  /**
   * Store a newly created resource in storage.
   *
   * @param  \Illuminate\Http\Request  $request
   * @return \Illuminate\Http\Response
   */
  public function store(Request $request) {
    //
  }
  /**
   * Display the specified resource.
   *
   * @param  \App\Models\Customer  $customer
   * @return \Illuminate\Http\Response
   */
  public function show(Customer $customer) {
    return Customer::find($customer);
  }
  /**
   * Show the form for editing the specified resource.
   *
   * @param  \App\Models\Customer  $customer
   * @return \Illuminate\Http\Response
   */
  public function edit(Customer $customer) {
    //
  }
  /**
   * Update the specified resource in storage.
   *
   * @param  \Illuminate\Http\Request  $request
   * @param  \App\Models\Customer  $customer
   * @return \Illuminate\Http\Response
   */
  public function update(Request $request, Customer $customer) {
    //
  }
  /**
   * Remove the specified resource from storage.
   *
   * @param  \App\Models\Customer  $customer
   * @return \Illuminate\Http\Response
   */
  public function destroy(Customer $customer) {
    //
  }
}

Kết quả khác nhau ở key nhau :)

Chú ý: 😒😒😒😒 ngoài ra chúng ta có thể tùy biến giá trị trả về của C:\xampp\htdocs\api\app\Http\Resources\CustomerResource.php

<?php
namespace App\Http\Resources;
use Illuminate\Http\Resources\Json\JsonResource;
class CustomerResource extends JsonResource {
  /**
   * Transform the resource into an array.
   *
   * @param  \Illuminate\Http\Request  $request
   * @return array|\Illuminate\Contracts\Support\Arrayable|\JsonSerializable
   */
  public function toArray($request) {
    // return parent::toArray($request);
    return [
      'name_customer' => $this->name_customer,
      'email_customer' => $this->email_customer,
    ];
  }
}

Kết quả là:

Một chú ý quan trọng nữa là: CustomerResource trả về api chỉ khi có dạng tham số giống với hình

Còn khi không có tham số thì chúng ta sử dụng như sau

Kết quả 😁

Hoặc tạo hẳn một collection riêng có một chút khác biệt hãy so sánh 

php artisan make:resource CustomerCollection --collection

C:\xampp\htdocs\api\app\Http\Resources\CustomerCollection.php

<?php
namespace App\Http\Resources;
use Illuminate\Http\Resources\Json\ResourceCollection;
class CustomerCollection extends ResourceCollection {
  /**
   * Transform the resource collection into an array.
   *
   * @param  \Illuminate\Http\Request  $request
   * @return array|\Illuminate\Contracts\Support\Arrayable|\JsonSerializable
   */
  public function toArray($request) {
    return parent::toArray($request);
  }
}

C:\xampp\htdocs\api\app\Http\Controllers\CustomerController.php

<?php
namespace App\Http\Controllers;
use App\Models\Customer;
use Illuminate\Http\Request;
use App\Http\Resources\CustomerResource;
use App\Http\Resources\CustomerCollection;
class CustomerController extends Controller {
  /**
   * Display a listing of the resource.
   *
   * @return \Illuminate\Http\Response
   */
  public function index() {
    // return Customer::all();
    // return CustomerResource::collection(Customer::paginate());
    return new CustomerCollection(Customer::paginate());
  }
  /**
   * Show the form for creating a new resource.
   *
   * @return \Illuminate\Http\Response
   */
  public function create() {
    //
  }
  /**
   * Store a newly created resource in storage.
   *
   * @param  \Illuminate\Http\Request  $request
   * @return \Illuminate\Http\Response
   */
  public function store(Request $request) {
    //
  }
  /**
   * Display the specified resource.
   *
   * @param  \App\Models\Customer  $customer
   * @return \Illuminate\Http\Response
   */
  public function show(Customer $customer) {
    return new CustomerResource($customer);
  }
  /**
   * Show the form for editing the specified resource.
   *
   * @param  \App\Models\Customer  $customer
   * @return \Illuminate\Http\Response
   */
  public function edit(Customer $customer) {
    //
  }
  /**
   * Update the specified resource in storage.
   *
   * @param  \Illuminate\Http\Request  $request
   * @param  \App\Models\Customer  $customer
   * @return \Illuminate\Http\Response
   */
  public function update(Request $request, Customer $customer) {
    //
  }
  /**
   * Remove the specified resource from storage.
   *
   * @param  \App\Models\Customer  $customer
   * @return \Illuminate\Http\Response
   */
  public function destroy(Customer $customer) {
    //
  }
}

Chú ý sử dung cách cuối này dữ liệu gọn gàng hơn nó tổng hợp thành meta, linh giống hình thuận tiện cho phân trang sau này :)

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