README

States allows you to create PHP classes following the State Pattern in PHP. This can be a cleaner way for an object to change its behavior at runtime without resorting to large monolithic conditional statements and this improve maintainability.

This package is bundle to adapt the library States to Symfony 2+.

Short Example

/**
 * File States/English.php
 */
class English extends \Teknoo\States\State\AbstractState 
{
    public function sayHello(): string
    {
        return 'Good morning, '.$this->name;
    }

    public function displayDate(\DateTime $now): string 
    {
        return $now->format('%m %d, %Y');
    }
}

/**
 * File States/French.php
 */
class French extends \Teknoo\States\State\AbstractState 
{
    public function sayHello(): string
    {
        return 'Bonjour, '.$this->name;
    }

    public function displayDate(\DateTime $now): string 
    {
        return $now->format('%d %m %Y');
    }
}

/**
 * File MyClass.php
 */
class MyClass extends \Teknoo\Bundle\StatesBundle\Entity\IntegratedEntity
{
    /**
     * @ORM\Column(type="string", length=250)
     * @var string
     */
    private $name;
    
    /**
     * @param string $name
     * @return self
     */
    public function setName(string $name): MyClass
    {
        $this->name = $name;
        
        return $this;
    }
}

$frenchMan = new MyClass();
$frenchMan->switchState('French');
$frenchMan->setName('Roger');

$englishMan = new MyClass();
$englishMan->switchState('Enflish');
$englishMan->setName('Richard');

$now = new \DateTime('2016-07-01');

foreach ([$frenchMan, $englishMan] as $man) {
    echo $man->sayHello().PHP_EOL;
    echo 'Date: '.$man->displayDate($now);
}

//Display
Bonjour Roger
Date: 01 07 2016
Good morning Richard
Date: 07 01, 2016

Installation & Requirements

This library requires :

* PHP 7+
* Composer
* States 2+
* Symfony 2.7+

Instruction to install the States bundle with Symfony 2+ : Install.

This library support Doctrine, but Doctrine is not mandatory. (Stated classes can be use without Doctrine)
* Doctrine (Orm or Odm/Mongo)

Symfony Use

For main States's features, the bundle is transparent :

• States bundle's services are private and are not available. Only the loader is accessible via : @teknoo.states.loader
• Your Symfony's Doctrine entity (ORM) must use the trait Teknoo\Bundle\StatesBundle\Entity\IntegratedTrait.
  • Alternative, you can inherits Teknoo\Bundle\StatesBundle\Entity\IntegratedEntity.
• Your Symfony's Doctrine document (ODM) must use the trait Teknoo\Bundle\StatesBundle\Document\IntegratedTrait.
  • Alternative, you can inherits Teknoo\Bundle\StatesBundle\Entity\IntegratedDocument.

With the extension States Life cyclable :

• Observer instance to register a stated class and observe it : @teknoo.states.lifecyclable.service.observer
• Manager to register scenarii about stated class: @teknoo.states.lifecyclable.service.manager
• Prototype to create a new Yaml Scenario Builder @teknoo.states.lifecyclable.prototype.scenario_yaml_builder
• Prototype to create a new Scenario Builder @teknoo.states.lifecyclable.prototype.scenario_builder
• prototype to create a new Scenario : @teknoo.states.lifecyclable.prototype.scenario

Documentation to use States with Symfony 2+ : Symfony.

Quick startup

Quick How-to to learn how use this library : Startup.

Example

An example of using this library is available in the folder : Demo.

API Documentation

Generated documentation from the library with PhpDocumentor : Open.

Behavior Documentation

Documentation to explain how this library works : Behavior.

Credits

Richard Déloge - richarddeloge@gmail.com - Lead developer. Teknoo Software - http://teknoo.software

About Teknoo Software

Teknoo Software is a PHP software editor, founded by Richard Déloge. Teknoo Software's DNA is simple : Provide to our partners and to the community a set of high quality services or software, sharing knowledge and skills.

License

States is licensed under the MIT and GPL3+ Licenses - see the licenses folder for details

Contribute :)

You are welcome to contribute to this project. Fork it on Github