Intermittent Session Variables?

[mvaughn]

Sometimes setting a session variable works, sometimes it doesn't.

If variable_exists("session.eid") then
   delete session.eid
end if 

dim session.eid as c
vclient = sql_lookup(cn,table,filter,result)
session.eid = vclient

In the receiving dialog I have:

e.control.empid = session.eid

Error complains about a missing sub-element "eid"

As mentioned earlier, sometimes it works, other times it doesn't.
Why would this be? Could it be my sql_lookup?
Or is this a session thing?

[mvaughn]

Re: Intermittent Session Variables?

I have since verified that my sql_lookup is not the problem:

dim session.eid as c
while session.eid = ""
   vclient = sql_lookup(cn,table,filter,result)
   session.eid = vclient
wend

What would prevent session variables from being set?
The code moving past the while...wend proves that session.eid is being made,
but when the next a5 page runs, session.eid is found or not found.
This plays hell with processing users.

[Steve Wood]

Re: Intermittent Session Variables?

Where are you setting the session var? If on the same page that the dialog appears, make sure your xbasic to set the var is above the dialog code on that A5W page. BTW, the while..wend does not create your session var, the dim statement creates the session var.

[Pat Bremkamp]

Re: Intermittent Session Variables?

Couple things.

In the current V11, it is better to not dim session variables. Instead, just assign them a value. So, instead you could try
session.eid = ""
while session.eid = ""
vclient = sql_lookup(cn,table,filter,result)
session.eid = vclient
exit while
end while

That is, remove the delete, the variable exists and the dim statements. When you are finished with the session variable, then delete it.

[mvaughn]

Re: Intermittent Session Variables?

Thank you Steve and Pat for your help on this.
It's keeping me from moving forward.

I'm setting the session variable in the afterDialogValidate event of dialog1,
and trying to read it in the onDialogInitialize event of dialog2, dialog3, etc.

As mentioned earlier it was 50-50 on whether it gets set.

I'm going to try Pat's code and report back.

[Peter.Greulich]

Re: Intermittent Session Variables?

Just to muddy the waters, building off of what Pat said, "session" is no longer a variable pointer, rather is is an "object". "eid" becomes an attribute of the object. So you don't dim the session object. All that said, for me, it's still a session variable.

[mvaughn]

Re: Intermittent Session Variables?

I discovered what the problem was.
The link to the login page was http://
whereas the rest of the project was in https://

When I logged in under https the session variable was seen in the other https pages.

Nice tip to know about.