PHP code example of chalcedonyt / laravel-specification

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

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

    

chalcedonyt / laravel-specification example snippets

 class NewSpecification extends AbstractSpecification
 {

     /**
     * @var  \App\User
     */
     protected $user;

     /**
     * @var  
     */
     protected $myValue;


     /**
     *
     *  @param  \App\User $user
     *  @param   $myValue
     *
     */
     public function __construct(\App\User $user, $my_value)
     {
         $this->user = $user;
         $this->myValue = $my_value;
     }

     /**
     * Tests an object and returns a boolean value
     *
     * @var  mixed
     */

     public function isSatisfiedBy($candidate)
     {
         //return a boolean value
     }

 }
 

class MalePersonSpecification  extends \Chalcedonyt\Specification\AbstractSpecification
{
    const GENDER_MALE = 1;
    const GENDER_FEMALE = 2;

    /**
    * Tests an object and returns a boolean value
    *
    * @var Array candidate
    */

    public function isSatisfiedBy($candidate)
    {
        return $candidate['gender'] == self::GENDER_MALE;
    }
}

$adult_spec = new AgeOfPersonSpecification(21, 80);
$teenager_spec = new AgeOfPersonSpecification(13, 19);
$puberty_spec = new AgeOfPersonSpecification(15, 19);

$male_spec = new MalePersonSpecification;
$female_spec = new NotSpec($male_spec);

$young_teenage_female = ['age' => 13, 'gender' => MalePersonSpecification::GENDER_FEMALE ];
$teenage_female = ['age' => 15, 'gender' => MalePersonSpecification::GENDER_FEMALE ];
$adult_female = ['age' => 22, 'gender' => MalePersonSpecification::GENDER_FEMALE ];

$nested_female_spec =  $puberty_spec->andSpec( $teenager_spec->andSpec( $female_spec ) );
$this->assertEquals( $nested_female_spec->isSatisfiedBy( $teenage_female ), true );
$this->assertEquals( $nested_female_spec->isSatisfiedBy( $young_teenage_female ), false );

$any_young_female_spec = $female_spec->andSpec( $teenager_spec->orSpec( $puberty_spec ));
$this->assertEquals( $nested_female_spec->isSatisfiedBy( $teenage_female ), true );
$this->assertEquals( $nested_female_spec->isSatisfiedBy( $adult_female ), false );

$any_age_spec = new AgeOfPersonSpecification(1, 80);

$male_spec = new MalePersonSpecification;
$female_spec = new NotSpec($male_spec);

$male = ['age' => 16, 'gender' => MalePersonSpecification::GENDER_MALE ];

$any_young_female_spec = new AndSpec( $female_spec, $any_age_spec );
$this->assertEquals( $any_young_female_spec->isSatisfiedBy( $male ), false );

//returns the $female_spec
$unfulfilled_spec =  $any_young_female_spec->remainderUnsatisfiedBy( $male );
$inverse_female_spec = new NotSpec( $unfulfilled_spec );
$this->assertEquals( $inverse_female_spec->isSatisfiedBy( $male ), true );

 php
php artisan make:specification [NameOfSpecification]

 php
class AgeOfPersonSpecification extends \Chalcedonyt\Specification\AbstractSpecification
{

    protected $minAge;
    protected $maxAge;

    /**
    * Set properties here for a parameterized specification.
    *
    */
    public function __construct($min_age, $max_age)
    {
        $this->minAge = $min_age;
        $this->maxAge = $max_age;
    }

    /**
    * Tests an object and returns a boolean value
    *
    * @var Array $candidate
    */

    public function isSatisfiedBy($candidate)
    {
        return $this->minAge <= $candidate['age'] && $this->maxAge >= $candidate['age'];
    }

}