Override class and add class variable

[Domin1992]

Hi,

 

I've created module and i put there override class Address. What i want is add new variable to class definition after i add manually column to database address table. File location is: /module/integrator/override/classes/Address.php.

 

Address.php

<?php

class Address extends AddressCore{
  public $id_integrator_address;

  public function __construct($id_address = null, $id_lang = null)
  {
      parent::__construct($id_address);

      $this->$definition = array_merge($this->definition['fields'], array('id_integrator_address' => array('type' => self::TYPE_INT, 'validate' => 'isUnsignedInt')));
  }
}

Error:

Accessing static property Address::$definition as non static

 

I have no idea how to merge my new variable with class definition. It needs to be in my module, i don't want to make any changes on core files.

[NemoPS]

Try this: http://nemops.com/extending-prestashop-objects/#.V39kafn5jmg

Definition is static

[Domin1992]

It works well now, thank you