PHP code example of nuad / graph-objects

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

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

    

nuad / graph-objects example snippets

class Person
{
    public $id;
    public $name;
    public $gender;

    public function __construct($id, $name, $gender)
    {
        $this->id = $id;
        $this->name = $name;
        $this->gender = $gender;
    }
}

use Nuad\Graph\Entity;
use Nuad\Graph\Graphable;
use Nuad\Graph\GraphAdapter;
use Nuad\Graph\Type;

class Person implements Graphable
{
    use GraphAdapter;

    public $id;
    public $name;
    public $gender;

    public function __construct($id, $name, $gender)
    {
        $this->id = $id;
        $this->name = $name;
        $this->gender = $gender;
    }

	public static function create()
    {
        return new self(0,'','');
    }

    public function graph()
    {
        return Entity::graph(
            ['Person']
        )
        ->properties(
            [
                'id'        => Type::Integer(),
                'name'      => Type::String(),
                'gender'    => Type::String()
            ]
        );
    }
}

$data = json_decode(file_get_contents('person.json'),true);
$person = Person::map($data);

class Point implements Graphable
{
    use GraphAdapter;
    /**
     * @var float
     */
    public $lat;
    /**
     * @var float
     */
    public $lng;

    public function __construct($lat=0.0, $lng=0.0)
    {
        $this->lat = $lat;
        $this->lng = $lng;
    }

    public function graph()
    {
        return Entity::graph(
            ['Point']
        )
        ->properties(
            [
                'lat'   => Type::Double()
                ->expected(array('latitude')),
                'lng'   => Type::Double()
                ->expected(array('longitude'))
            ]
        );
    }
}

class Location implements Graphable
{
    use GraphAdapter;
    /**
     * @var Point
     */
    public $point;
    /**
     * @var string
     */
    public $city;
    /**
     * @var string
     */
    public $country;
    /**
     * @var string
     */
    public $address;

    public function __construct(Point $point=null, $city='', $country='', $address='')
    {
        $this->point = $point;
        $this->city = $city;
        $this->country = $country;
        $this->address = $address;
    }

    public function graph()
    {
        return Entity::graph(
            ['Location']
        )
        ->properties(
            [
                'point'     => Type::Object(Point::create()),
                'city'      => Type::String(),
                'country'   => Type::String(),
                'address'   => Type::String()
            ]
        );
    }
}

class User extends Person
{
    use GraphAdapter;

    /**
     * @var int
     */
    public $age;
    /**
     * @var string
     */
    public $email;
    /**
     * @var boolean
     */
    public $loggedIn;
    /**
     * @var Location
     */
    public $location;
    /**
     * @var Person[]
     */
    public $friends;

    public function __construct($id,$name,$gender,$age, $email, $loggedIn, $location, $friends)
    {
        parent::__construct($id,$name,$gender);
        $this->age = $age;
        $this->email = $email;
        $this->loggedIn = $loggedIn;
        $this->location = $location;
        $this->friends = $friends;
    }

    public function graph()
    {
        return parent::graph()->extend(
            ['User']
        )
        ->properties(
            [
                'age'       => Type::Integer(),
                'email'     => Type::String(),
                'loggedIn'  => Type::Boolean(),
                'location'  => Type::Object(Location::create()),
                'friends'   => Type::Collection(Person::create())
            ]
        );
    }
}

   return Entity::graph(
            ['Person']
        )
        ->properties(
        [
            'id'        => Type::Integer(),
            'name'      => Type::String(),
            'gender'    => Type::String()
            ->handler(function($data,$name,$scenario)
            {
                return $data === 'fem' ? 'female' : 'male'
            })
        ]
        )->finalize(function(Person $instance, $scenario, $data)
        {
            if($instance->id === null)
            {
                throw new Exception('invalid person data');
            }
        });