Can't Update Primary Key

Hi all,

Since some days, I have a problem to update two primary keys in table and I don't find why. That's weird because other fields are updated.

Example : ( langueId = 1; currencyId = 1)

$country = Country::findFirst(1);
$country->langueId = 2;
$country->currencyId = 1;
$country->isoCode = 'en' ;
$country->isoCode = '';
$country->updatedAt = date('Y-m-d H:i:s');
$country->update();

No Changes for langueId and currencyId. They still the same value after update; Can someone help plz ?

My Sample Country Model

<?php

namespace Some\Model;

class Country extends \Phalcon\Mvc\Model
{
    public $id;

    public $langueId;

    public $currencyId;

    public $isoCode;

    public $active;

    public $createdAt;

    public $updatedAt;

    public function initialize()
    {
        $this->belongsTo("langueId", "Some\Model\Langues", "id", array('alias' => 'langue'));
        $this->belongsTo("currencyId", "Some\Model\Currency", "id", array('alias' => 'currency'));
    }

    public function getSource()
    {
        return 'countries';
    }
}

My Sample Currency Model

<?php

namespace Some\Model;

class Langues extends \Phalcon\Mvc\Model
{

    public $id;

    public $isoCode;

    public $languageCode;

    public $active;

    public $createdAt;

    public $updatedAt;

    public function initialize()
    {
        $this->hasOne("id", "Some\Model\Country", "langueId", array( 'alias' => 'country'));
    }

    public function getSource()
    {
        return 'langues';
    }
}

My Sample Country Model

<?php

namespace Some\Model;

class Currency extends \Phalcon\Mvc\Model
{
    public $id;

    public $name;

    public $isoCode;

    public $isoCodeNum;

    public $symbol;

    public $active;

    public $createdAt;

    public $updatedAt;

    public function getSource()
    {
        return 'currencies';
    }

    public function initialize()
    {
        $this->hasOne("id", "Localization\Model\Country", "currencyId", array( 'alias' => 'country'));
    }
}

SQL Schema

-- -----------------------------------------------------
-- Table `langues`
-- -----------------------------------------------------
`langues` (
  `id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
  `isoCode` VARCHAR(3) NULL,
  `languageCode` VARCHAR(5) NULL,
  `active` TINYINT(1) NULL,
  `createdAt` DATETIME NULL,
  `updatedAt` DATETIME NULL,
  PRIMARY KEY (`id`))
ENGINE = InnoDB;

-- -----------------------------------------------------
-- Table `currencies`
-- -----------------------------------------------------
`currencies` (
  `id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
  `name` VARCHAR(32) NULL,
  `isoCode` VARCHAR(3) NULL,
  `isoCodeNum` VARCHAR(3) NULL,
  `symbol` VARCHAR(8) NULL,
  `active` TINYINT(1) NULL,
  `createdAt` DATETIME NULL,
  `updatedAt` DATETIME NULL,
  PRIMARY KEY (`id`))
ENGINE = InnoDB;

-- -----------------------------------------------------
-- Table `countries`
-- -----------------------------------------------------
`countries` (
  `id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
  `langueId` INT UNSIGNED NOT NULL,
  `currencyId` INT UNSIGNED NOT NULL,
  `isoCode` VARCHAR(3) NULL,
  `active` TINYINT(1) NULL,
  `createdAt` DATETIME NULL,
  `updatedAt` DATETIME NULL,
  PRIMARY KEY (`id`, `langueId`, `currencyId`),
  INDEX `fk_countries_langues1_idx` (`langueId` ASC),
  INDEX `fk_countries_currencies1_idx` (`currencyId` ASC),
  CONSTRAINT `fk_countries_langues1`
    FOREIGN KEY (`langueId`)
    REFERENCES `langues` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_countries_currencies1`
    FOREIGN KEY (`currencyId`)
    REFERENCES `currencies` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;

Any Idea ?