Who is Online

Classic Servoy
1

My solution requires that I describe “Who is Online” similar to the Servoy Forum Index.
I can get a value list of all registered users, thanks to “The Servoy Guy”, but how do I know who is online now?

2

I assume your referring to http://www.servoyguy.com/code_repositor … rvoy_users

Currently, there isn’t a way to know which users are online, but you can use this…

//run on startup for each client
application.addClientInfo(“someUniqueIdentifier”)

//then get the number of clients with that info
application.getClientCountForInfo(“someUniqueIdentifier”)

However, that only gets you the count, not a direct handle to the clients. So you can’t get information about the connected clients, like what is their username, user groups, etc. I’ve been working on a plugin for this which may be released in a few weeks.

3

Thanks Scott, I look forward to your next reply.

4

The main reason I would like to know this is…
Re: 4.1
If I sell somebody 10 Servoy licenses I would like them to know when it is time to buy more.
It is real hard for me to sell more licenses when they don’t have a handle on how many they are actualy using.
I will take any suggestions.

5

Hi Briggsy,

If you want to know the used up licenses at any time then you can use the technique described by Scott.
I use it myself in a SaaS situation to make sure a client doesn’t use more than his/hers paid licenses.

6

Thanks Robert
How could I put this into a progress bar showing green to red!
Do you know?

7

Hi Briggsy,

Well at startup of a solution you need to set the unique identifier like Scott mentioned.
After that you can use something like this method to set a form global that is used as dataprovider on a field (using display type HTML_AREA).

function setUsedClientsHTML() {
    var _sHTML      = '<html><table width="100%" cellpadding="0" cellspacing="0"><tr>',
        _nMax       = 10,
        _nCurrent   = application.getClientCountForInfo("someUniqueIdentifier"),
        _nThreshold = 8,
        _nPercUsed  = (_nMax/100)*_nCurrent;

    // the progressbar
    _sHTML += "<td width="' + _nPercUsed + '%" bgcolor="';
    if ( _nCurrent >= _nThreshold ) {
        _sHTML += "#ff0000"; // red
    } else {
        _sHTML += "#00ff00"; // green
    }
    '"></td>'; 
    _sHTML += "<td width="' + (100-_nPercUsed) + '%"></td>'; // what's left
    
    forms.yourForm.yourFormGlobal = _sHTML + '</tr></table></html>';
}

Okay, this is untested code but you get the idea.
Now how you will trigger this method is up to you. You can do it on an onShow, or via a scheduler process. It all depends on how much you want this to refresh.

Hope this helps.

8

That’s Awsome dude!
Thank you very much, I will refine and post code.

9

Assuming every client is shut down each day.
Solution on open method:

	var vtoday = plugins.DateUtils.DateTime();
	vtoday       = vtoday.day
	//run on startup for each client 
	application.addClientInfo(vtoday) 

	//then get the number of clients with that info 
	globals.number_online = application.getClientCountForInfo(vtoday)

I created the folowing Form Field


to look like this…


Create globals.number_online_html

function license_count_html()
{
    var sHTML      = '<html> <body> <table width="100%"  cellpadding="0" cellspacing="0"> <tr> <td width="',
        nMax       = globals._number_of_licenses, 		// Maximum number of licenses
        nCurrent   = globals.number_online,
        nYellowThreshold = .75,       
        nRedThreshold = .85,
        nPercUsed  = nCurrent / nMax;
		
    	// the progressbar
   		sHTML += nPercUsed * 100 + '%" bgcolor="';
    if ( nPercUsed >= nRedThreshold ) 
    {
         sHTML += '#ff0000'; // red
    }
    else if ( nPercUsed >= nYellowThreshold )
    {
        sHTML += '#FFCC00'; // yellow
    }
    else
    {
        sHTML += '#006600'; // green
    }
    
    sHTML += '"></td>'; 
    sHTML += '<td width="' + (100-nPercUsed*100) + '%"></td>'; // what's left
    globals.number_online_html = sHTML + '</tr></table></html>';
}
10

How do you determine how many licenses are available with code please?

11

Briggsy-is-back!:
How do you determine how many licenses are available with code please?

Available on the server ? As far as I know you can’t.
I guess you can file a feature request for this, with Servoy or with Patrick for in his commercial UserManager plugin.