Forum OpenACS Development: Problem with acs_user::get_element

Collapse
1: Problem with acs_user::get_element
Posted by Amruta Lakade on 07/08/08 03:53 PM
Hi all,
I am using said api to get the current user
information.But it gives error if no user is logged in.
Can any one could suggest solution to this.

Thanks and Regards,
-Amruta

Collapse
2: Re: Problem with acs_user::get_element (response to 1)
Posted by Gustaf Neumann on 07/08/08 04:40 PM
you should proved the exact call with the used parameters. For example, if you do not provide the user_id, the api call tries to get the information for the user, who is currently logged in.
Collapse
3: Re: Problem with acs_user::get_element (response to 1)
Posted by Amruta Lakade on 07/09/08 06:10 AM
Hi Gustaf,
Thanks for the reply.

I am using the api to know the name of logged-in user only.
At the moment of calling the api if i don't know the user_id then how should I provide it?

-Amruta

Collapse
4: Re: Problem with acs_user::get_element (response to 3)
Posted by Gustaf Neumann on 07/09/08 08:04 PM
One can get the user_id of the current user via "ad_conn user_id". If the result of "ad_conn user_id" is 0, no user is currently logged-in in this thread.
Collapse
5: Re: Problem with acs_user::get_element (response to 4)
Posted by Mark Aufflick on 07/10/08 03:04 AM 
This is not *quite* correct. There are two user_id values available from ad_conn: user_id and untrusted_user_id

The difference in behaviour is this:


                    no user     user logged in    user logged in
                    logged_in   and not expired   but expired
user_id                0            the id             0
untrusted_user_id      0            the id          the id

It's important to know the difference because otherwise your users will have the confusion of the "logged in as..." showing that they are logged in, but your code relying solely on ad_conn user_id behaving as though they are not logged in.

Just thought it worth clarifying.
Collapse
6: Re: Problem with acs_user::get_element (response to 1)
Posted by Amruta Lakade on 07/10/08 07:28 AM
Hey thanks,
The problem is solved :)
Thanks again.
-Amruta