/**
     * Magic Method for setting model attributes.
     */
    public function __set($key, $value)
    {
        // If the key is a relationship, add it to the ignored attributes.
        // Ignored attributes are not stored in the database.
        if (method_exists($this, $key))
        {
            $this->ignore[$key] = $value;
        }
        else
        {
          if($this->attributes[$key] !== $value) $this->dirty[$key] = $value;
            $this->attributes[$key] = $value;
        }
    }