Hi Brice
On 07/16/2013 04:51 PM, Brice Hamon wrote:
> Hi guys,
>
> I have 2 questions:
>
> 1) when using SESSION, is there a way to get notified when a session
> expires or is closed by rivet? I need to do some cleanup on my side
> when a user goes away.
>
Currently I can think of only 2 possible ways:
1 - DBMS triggers: if your cleanup is related to other data stored in
other tables you may design your DB schema so that you can use the
session_id column as key for picking the rows you want to remove (see
Mysql manual for triggers and stored procedures)
2 - Subclass Rivet's Session class and override the
do_garbage_collection method. Just remember to call the superclass
method after you have carried out your cleanup tasks.
I proposed to reimplement Session as an TclOO class preserving the
interfaces as much as possible: using OO system would make available to
the programmer filter methods that could be configured at run time
> 2) Is there something special to do before using forms? I am getting
> a:
>
>
> invalid command name "::rivet::form" while executing "::rivet::form
> myform -defaults response -method post -action {logout} -name
> logout"
package require form should create the form command in the global
namespace, not within the ::rivet namespace (we ought to introduce a
namespace for it)
>
> while all other packages so far are working fine (DIO, SESSION).
>
> Thank you,
>
> B.
>
--
-- Massimo Manghi
Dipartimento di Neuroscienze
Unità di Biofisica e Fisica Sanitaria
via Volturno 39
43125 Parma
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