Re: redirect user if session dead without clicking him at the page itself

Hi Johan,

yes, it helped, thank you!
onError: did not work but I already had a global error handler and this
works fine.

Have a nice day
Sabine

2017-04-21 8:13 GMT+02:00 Johan Brichau-2 [via Smalltalk] <
[email protected]>:

> Hi Sabine,
>
> If you include a period check, you automatically keep the session alive if
> the ‘check in’ interval is shorter than the session expiration duration.
> If the session is dead, the callback cannot execute because it is no
> longer there, so you cannot write code that checks if the session is still
> alive from within you Seaside code on the server.
>
> You can only do something on the client, if the Seaside session is
> reported to be ‘dead’ (i.e. when receiving an http response 403).
> Using an error handler for the jquery ajax requests is the way we deal
> with those situations. It boils down to this:
>
>         script:
>             (html jQuery this load
>                 html: [ :r | … ];
> onError: (html javascript alias: handleError))
>                interval: 30 seconds);
>         with: [ html render: something].
>
>
> function handleError( event, jqxhr, settings, thrownError ) {
> if(jqxhr.status == 403)
> window.location = '/‘;
> }
>
> Instead of writing this for each ajax callback, you can also set a global
> ajax handler on the document when the page loads: http://api.jquery.com/
> category/ajax/global-ajax-event-handlers/
> You might also want to take a look at this chapter: http://book.seaside.
> st/book/in-action/session/recovering if you want to respond in a specific
> way when sessions have expired
>
> Does this help you?
>
> cheers
> Johan
>
> On 20 Apr 2017, at 18:04, Sabine Manaa <[hidden email]
> <http:///user/SendEmail.jtp?type=node&node=4942970&i=0>> wrote:
>
> Hi,
>
> is anyone having an idea for a solution of this problem:
>
> I want that my seaside web app redirects the user to another page (login
> page) if the session is "dead*". The special point I am looking for is:
>
> This should happen ALSO if the user does NOT click on this page or does
> something. Also if the user switches to another tab.
>
> So, if he comes back to the browser/to my apps tab, he should see a
> message "you have already been logged out".
>
> I assume I have to periodically check if the session is alive and played
> around with
>
> html paragraph
>         script:
>             (html jQuery this load
>                 html: [ :r | "here check for session and if not there,
> redirect"
>                     (Array with: self currentPerson with: (self
> application sessions includes: self session))
>                         inspect ];
>                 interval: 30 seconds);
>         with: [ html render: something].
>
> but if the session is dead, the code "here check ..." is no longer
> executed.
> I am not sure if this is the right idea...
> Anyone already implemented something like this?
>
> I am not looking for a redirect after clicking somewhere in the app, I
> have this and it works fine.
>
> Regards
> Sabine
>
> * I have read a little about "dead" sessions and know that they are
> collected away at unpredictable time. With "dead" I mean that if the user
> would click at the app, he would be transferred away.
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