"Who's logged in" help

[eluser]spmckee[/eluser]
Greetings,

I have read several threads on the "Who's online" functionality but still can't make sense of them. I do understand the method of finding the latest, active users via the "last activity" column in the DB. What I need big help on is pulling that info out and using AJAX / Javascript for updating the information on the fly. I'm a complete noob with javascript stuff.

Are there any simple CI helpers or tutorials that can get me headed inthe right direction?

Thanks!
SP

[eluser]InsiteFX[/eluser]
Hi,

This may help you to under stand it.

Code:

--
-- Table structure for ci_sessions
--
DROP TABLE IF EXISTS ci_sessions;

CREATE TABLE IF NOT EXISTS `ci_sessions` (
  `session_id`        varchar(40) DEFAULT '0'       NOT NULL,
  `ip_address`        varchar(16) DEFAULT '0'    NOT NULL,
  `user_agent`        varchar(50)           NOT NULL,
  `last_activity`    int(10) unsigned DEFAULT 0 NOT NULL,
  `user_data`        text                    NOT NULL,
  PRIMARY KEY (`session_id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci ;


--
-- Table structure for table groups
--
DROP TABLE IF EXISTS groups;

CREATE TABLE IF NOT EXISTS `groups` (
  `id`        int(11)        NOT NULL,
  `title`    varchar(30)    NOT NULL,
  `description`    varchar(100)    NOT NULL,
  PRIMARY KEY  (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci ;


--
--  Table structure for users table
--
DROP TABLE IF EXISTS users;

CREATE TABLE `users` (
  `id`        int(11)              NOT NULL AUTO_INCREMENT,
  `user_name`    varchar(40),
  `password`    varchar(32),
  `user_id`    varchar(32),
  `user_level`    tinyint(1)    unsigned  NOT NULL,
  `email`    varchar(255),
  `timestamp`    int(11)        unsigned  NOT NULL,
  PRIMARY KEY (`id`, `user_name`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=6 ;


--
--  Table structure for users_online table
--
DROP TABLE IF EXISTS users_online;

CREATE TABLE `users_online` (
  `user_name`    varchar(40),
  `timestamp`    int(11)            unsigned NOT NULL,
  PRIMARY KEY (`user_name`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci ;


--
--  Table structure for guests_online table
--
DROP TABLE IF EXISTS guests_online;

CREATE TABLE `guests_online` (
  `ip`        varchar(16)             NOT NULL DEFAULT '0',
  `timestamp`    int(11)        unsigned NOT NULL,
  PRIMARY KEY (`ip`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci ;


--
--  Table structure for users_banned table
--
DROP TABLE IF EXISTS users_banned;

CREATE TABLE `users_banned` (
  `ip`        varchar(16)         NOT NULL DEFAULT '0',
  `user_name`    varchar(40),
  `timestamp`    int(11)        unsigned NOT NULL,
  PRIMARY KEY (`user_name`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci ;

When a user comes to the site they are assigned a guest level of 0, and moved to the guests_online table.

If they then login they are removed from the guests_online and moved to the users_online table both with a timestamp.

This should not be hard to add to any of the auth systems out there.

This is from an old auth system that I have I am convering it over in my spare time to a Role Based Access Conntrol system for CodeIgniter.

Enjoy
InsiteFX