flushCache

	// {{{ Flush User Cache

	public function flushCache($user_id)
	{
		$this->cache->delete('USER-' . $user_id);
	}

	// }}}

getUser

	// {{{ Get User (by Column)

	private function getUser($column, $value)
	{
		if ($column == 'id')
		{
			$user = $this->cache->get('USER-' . $value);
		}
		else
		{
			$user = false;
		}

		if ($user == false)
		{
			$user = new User(array(
				'fields'     => $this->cached_fields,
				'conditions' => array($column => $value)
			));

			if ($user->count() == 1)
			{
				$user = $user->record;

				$this->cache->set('USERNAME-' . $user['username'], $user['id'], TIME_HOUR);
				$this->cache->set('USER-'     . $user['id'],       $user,       TIME_HOUR);
			}
			else
			{
				$user = null;
			}
		}

		return $user;
	}

	// }}}