PHP code example of ed-fruty / strange-observer

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

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

    

ed-fruty / strange-observer example snippets

  
  
  use Fruty\Observe\Manager;
  use Fruty\Observe\Event;
  
  class User extends SomeClass
  {
    /**
     * @access public
     * @param array $attributes
     * @return bool
     */
    public function register(array $attributes)
    {
      return $this->save($attributes);
    }
  }
  
  // create instance
  $user = Manager::make('User');
  
  // or we can use instance of User extend of class name
  $instance = new User();
  $user = Manager::make($instance);
  
  

  $user->register(array('username' => 'root'));
  

  $user()->before('register', function(Event $event)
  {
    // validate data
    // get method arguments
    $params = $event->getParams();
    
    //... some validation logic
    
    // for abort calling register method (if validation is failed) use
    $event->stopPropagation();
    
    // for setting some return value
    $event->setResult("Validation errors");
  });
  

  $user()->after('register', function(Event $event)
  {
    if ($event->getResult()) {
      // in $event->getResult() result of executed method, in our case it is boolean 
      // and if it true - registration was successfull, so send email
      $email = $event->getParams()[0]['email'];
      $mailer = new Mailer();
      $mailer->body("Congratulations!")
        ->to($email)
        ->send();
    }
  });
  
  

  $user->register(array('username' => 'root', 'email' => '[email protected]'));
  

  
  $user()->before('register', function(Event $event)
  {
    // this code will be executed early than validation
    // because it have higher priority (Event::PRIORITY_HIGH)
  }, Event::PRIORITY_HIGH);
  
  

  
  $user()->bind('updateLastLoginTime', function($userId)
  {
    //code
  });
  
  $user->updateLastLoginTime(5);
  

  
  $user()->bind('register', function(array $attributes, $setAdminStatus)
  {
    if ($setAdminStatus) {
      $attributes['admin'] = true;
    }
    // call parent method
    return $this(true)->register($attributes);
  });
  
  $user->register(array('username' => 'root', 'email' => '[email protected]'), true);
  

  $user()->bind('getOne', function($userId)
  {
    //$this is instance of Invoker, methods will remap to the instance of User and they can be listened
    //$this(true) is instance of User, methods cannot be listened
    
    // NOTE!!!
    // if you write here $this->getOne() script will call this action again and again, so you must to use 
    // $this(true)->getOne() to use real User::getOne()
    
    // if you call here
    $this->register(); // it will be called and listened
    $this(true)->register(); // it will be called but not listened, this is original User::register()
    $this->updateLastLoginTime(); // it will be called and listened
    $this(true)->updateLastLoginTime(); // Fatal error, calling undefined method User::updateLastLoginTime()
    
    return array('some data');
  });
  
  

  use Fruty\Observe\Event;
  use Fruty\Observe\AbstractSubscriber;
  
  class UserSubscriber extends AbstractSubscriber
  {
    /**
     * This method will call before calling User::register()
     *
     * @access public
     * @static 
     * @param \Fruty\Observe\Event $event
     */
    public static function onBeforeRegister(Event $event)
    {
      // here code
    }
    
    /**
     * This method will call after calling User::register()
     *
     * @access public
     * @static 
     * @param \Fruty\Observe\Event $event
     */
    public static function onAfterRegister(Event $event)
    {
      // here code
    }
    
    /**
     * We can set priorities to the actions
     *
     * @access public
     * @static
     * @return array
     */
     public function getPriorities()
     {
      return array(
        'onBeforeRegister' => Event::PRIORITY_HIGHT,
        'onAfterRegiter' => Event::PRIORITY_LOW,
      );
     }
  }
  
  // register subscriber
  $user()->subscribe('UserSubscriber');
  
  

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