RequestVar context not restored when LiftRules.handleUnmappedParameter is executed?

[Andreas Joseph Krogh]

Hi all.

 

I'm observing that in my LiftRules.handleUnmappedParameter handler requestvars seem to not be restored and their default-value is returned. Can somebody confirm this?

 

Thanks.

 

--

Andreas Joseph Krogh

CTO / Partner - Visena AS

Mobile: +47 909 56 963

and...@visena.com

www.visena.com

[Antonio Salazar Cardozo]

Hmm… I don't think I've ever set it per-request, only the default. Any chance you can get

it boiled down to a minimal case?

Thanks,

Antonio

[Andreas Joseph Krogh]

På torsdag 12. mars 2015 kl. 15:05:36, skrev Antonio Salazar Cardozo <savedf...@gmail.com>:

Hmm… I don't think I've ever set it per-request, only the default. Any chance you can get

it boiled down to a minimal case?

Thanks,

Antonio

 

Now that I think of it, the expected request-var will never be set in situations where "handleUnmappedParameter" is used, righ? That is the whole purpose of "handleUnmappedParameter" is used is it not, because the mapping is GC'ed from the map and hence the request-var context for that page is in effect gone?

 

Or am I not making any sense?

[Diego Medina]

That's what I thought too, once lost, you would have to write some logic to get it back

Diego
Sent from my cell

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[Diego Medina]

That's what I thought too, once lost, you would have to write some logic to get it back

Diego
Sent from my cell

On Mar 12, 2015 5:46 PM, "Andreas Joseph Krogh" <and...@visena.com> wrote:

--

[Antonio Salazar Cardozo]

It depends on what situation you're trying to handle… But yeah, you're probably right, in most situations

you'd have lost your page state.

Thanks,

Antonio

[Andreas Joseph Krogh]

På fredag 13. mars 2015 kl. 21:29:52, skrev Antonio Salazar Cardozo <savedf...@gmail.com>:

It depends on what situation you're trying to handle… But yeah, you're probably right, in most situations

you'd have lost your page state.

Thanks,

Antonio

 

Yes, when the page-state is gone we hit handleUnmappedParameter. I store the current Locale in a request-var (which is initially retrieved from the URI) and was trying to give an i18n-message to the user that the page has timed out, but I have to re-think how to i18n that message now... Maybe I can use "Referer"-header in the reuquest to look for which URI made the unmapped AJAX-request.

[Diego Medina]

do you users change locale per request?

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Lift, the simply functional web framework: http://liftweb.net
Code: http://github.com/lift
Discussion: http://groups.google.com/group/liftweb
Stuck? Help us help you: https://www.assembla.com/wiki/show/liftweb/Posting_example_code

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Diego Medina
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di...@fmpwizard.com
http://fmpwizard.telegr.am

[Andreas Joseph Krogh]

På lørdag 14. mars 2015 kl. 12:51:11, skrev Diego Medina <di...@fmpwizard.com>:

do you users change locale per request?

 

Yes, they might. The application's URIs are constructed like this

 

/<locale>/stuff

 

So the locale is extracted from the URI for each request.

[Antonio Salazar Cardozo]

If LiftRules.localeCalculator is set to extract it from the URI, I believe S.locale should be

set at that point.

Thanks,

Antonio

[Andreas Joseph Krogh]

På lørdag 14. mars 2015 kl. 17:29:37, skrev Antonio Salazar Cardozo <savedf...@gmail.com>:

If LiftRules.localeCalculator is set to extract it from the URI, I believe S.locale should be

set at that point.

Thanks,

Antonio

 

The problem I'm facing is that AJAX-mappings which have timed out, have the URI=/ajax_request and hence rely on being set as request-var, which are gone because of the nature of this problem (ie. laptop has been at sleep for 15 mins and funcs are GC'ed after 10).

[Antonio Salazar Cardozo]

Ah. Gotcha. Hmmmm…

One possibility is using the client-side lost-session callback to deal with this, possibly by requesting the

appropriate locale's error message and then displaying it?

Thanks,

Antonio