PHP code example of sportuondo / eralda

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

sportuondo / eralda example snippets

$tolkien = new Author();
$tolkien->id = 1;
$tolkien->name = 'J.R.R. Tolkien';
$tolkien->isFreelance = false;
$tolkien->birthDate = Carbon::createFromFormat('Y-m-d', '1892-01-03');

$hobbit = new Book();
$hobbit->id = 1;
$hobbit->author = $tolkien;
$hobbit->title = 'The Hobbit';
$hobbit->year = 1937;

$lotr = new Book();
$lotr->id = 2;
$lotr->author = $tolkien;
$lotr->title = 'The Lord of the Rings';
$lotr->year = 1968;

$this->tolkien->books = [
    $hobbit,
    $lotr
];

class AuthorArrayTransformer extends ArrayTransformerAbstract
{
    protected $keysMap = [
        'id'          => 'id',
        'name'        => 'name',
        'isFreelance' => 'is_freelance',
        'birthDate'   => 'birth_date',
    ];
    
    protected function presentBirthDate($author)
    {
        return $author->birthDate->format('Y-m-d');
    }
}

$authorTransformer = new AuthorArrayTransformer();
$authorArray = $authorTransformer->transformItem($tolkien);

json_encode($authorArray)

{
  "id": 1,
  "name": "J.R.R. Tolkien",
  "is_freelance": false,
  "birth_date": "1892-01-03"
}

$authorTransformer = new AuthorArrayTransformer();
$authorsArray = $authorTransformer->transformCollection($authors);

json_encode($authorsArray)

{
  [
    {
      "id": 1,
      "name": "J.R.R. Tolkien",
      "is_freelance": false,
      "birth_date": "1892-01-03"
    },
    {
      "id": 2,
      "name": "Isaac Asimov",
      "is_freelance": false,
      "birth_date": "1920-01-02"
    }
  ]
}

class BookArrayTransformer extends ArrayTransformerAbstract
{
    protected $keysMap = [
        'id'     => 'id',
        'title'  => 'title',
        'author' => 'author',
        'year'   => 'year',
    ];

    protected function presentAuthor($book)
    {
        return $book->author->name;
    }
}

class AuthorArrayTransformer extends ArrayTransformerAbstract
{
    protected $embeds = [
        'books',
    ];

    protected $keysMap = [
        'id'          => 'id',
        'name'        => 'name',
        'isFreelance' => 'is_freelance',
        'birthDate'   => 'birth_date',
    ];

    protected function presentBirthDate($author)
    {
        return $author->birthDate->format('Y-m-d');
    }

    protected function embedBooks($author)
    {
        $bookTransformer = new BookArrayTransformer();
        return $bookTransformer->transformCollection($author->books);
    }
}

{
  [
    {
      "id": 1,
      "name": "J.R.R. Tolkien",
      "is_freelance": false,
      "birth_date": "1892-01-03",
      "books": [
        {
          "id": 1,
          "title": "The Hobbit",
          "author": "J.R.R. Tolkien",
          "year": 1937
        },
        {
          "id": 2,
          "title": "The Lord of the Rings",
          "author": "J.R.R. Tolkien",
          "year": 1968
        }
      ]
    },
    {
      "id": 2,
      "name": "Isaac Asimov",
      "is_freelance": false,
      "birth_date": "1920-01-02",
      "books": [
        {
          "id": 3,
          "title": "The Caves of Steel",
          "author": "Isaac Asimov",
          "year": 1954
        }
      ]
    }
  ]
}