class Model_User extends Amodel {

	protected $table = 'users';
	protected $table_key = 'id';
	protected $fields = array('id' => '',
				'display_name' => '',
				'username' => '',
				'email' => '',
				'password' => '',
				'auth_code' => '',
				'created_time' => '',
				'active' => '',
				'deleted' => '',
				'banned' => '',
				'token' => '',
				'token_expires' => '',
				'last_active' => '',
				'admin_login' => '',
				'logins' => '',
				'token_user_agent' => ''
	);

	protected $rules = array(
					'display_name'	=> array('required', 'length[4,100]'),
					'username'		=> array('required', 'length[4,100]', 'alpha_dash'),
					'email'			=> array('required', 'email'),
					'password'		=> array('required', 'length[8,100]', 'matches[password2]')
 	);

	protected $callbacks = array(
					'username'	=> array('is_unique')
 	);

	public function pre_validate($data, $is_update = FALSE, $before = array())
	{
		if ($is_update)
		{
			// Don't check for unique username if they didn't change the username
			if (isset($data['username'])  AND isset($before['username']) AND $data['username'] == $before['username'])
			{
				unset($this->callbacks['username']);
			}
			
			// We need the create_time for the password salt
			$data['created_time'] = $before['created_time'];
			
			// The password isn't required for updates
			$this->rules['password'] =  array('length[8,100]', 'matches[password2]');
			
		}
		return $data;
	}
}