You _can_ get a table of variables based on
the userreference, but you have to first know the userreference.
catch-22.
The right method would be to keep a domain
scope array (or custom scope if you want) with all of the userreference values
in it for all the logged in users. When the trigger goes off, all that TAF has
to do is remove the particular user ref from the array you created. Then, at any
time, to find out how many active user references there are, all you have to do
is <@NUMROWS array=domain$thearray>.
I used this method to build an ICQ-like
application. This is how I extensively tested the variabletimeouttrigger to make
sure it worked properly.
Thank you for your response.
The problem is that most users, if not
all, do not logout.
I have never used the timeoutHTML or
queryTimeout and the user's guide is too smart for me. I do not understand
what query they are talking about. And how invoking an html file will
let me identify the user var?
There is also
a variableTimeoutTrigger which can start a URL when a variable
lifetime is about to expire, but even using this one is not clear how I can
identify the var that is about to expire. Or at least it is not clear to me.
Does anybody have an example?
Now, even if the above method would work,
this implies a lot of overhead if the expiry of each variable implies some
processing. I do not need to have that information at all times. I only need
this information on a by request basis. In my opinion, there should be a way
to ask the server which users (or variables) are still active. And the
response should be probably a table of variables based on
<@userReferenceArgument>.
Mike.
If you have a login process, you could have a domain variable keeping
track of users logged in.
When a user logs in,
when a user logs out or times out (you can set a timeout trigger
file):
you could also get fancy and maybe keep a table of the userref's of all
logged in users and some of their info so that you had more detailed info
about who was logged in.
hope this helps,
Atrix
----- Original Message -----
Sent: Friday, February 28, 2003 10:18
PM
Subject: Witango-Talk: Users Logged
In
Hello all,
Is there a way to find out the number of users that are
(technically speaking) logged in?
What I need to find out is if there are users that are using the system
at the time when I need to take the system down.
It would be nice to be able find out how many users are logged in, who
and for how long since there last request.
I know I can do this programmatically, but it means basically, every
page will be affected.
Instead I assume it should be a way to interrogate the server about the
status of the vars (the server knows this info because it purges
the vars at timeout).
Any help is greatly appreciated.
Mike.
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