[Zope] Value of a Session Variable

[Asad Habib]

The error I am referring to is not a Zope error, but rather an error
caused by the user which the application appropriately handles by
redirecting the user.

The problem I have described in this message actually has to do with
running Zope with SSL. My last message to the group describes this in
detail.

FYI, my application server is configured so that the session_data_manager is
located at the root level and that security is only enabled for all
levels below the root. This may have something to do with the problem.
If so, can I place the session_data_manager below the root level or
have multiple of these at different levels? Any help on this issue would
be greatly appreciated. Thanks.

- Asad


On Fri, 3 Sep 2004, Dieter Maurer wrote:

> Asad Habib wrote at 2004-9-2 13:28 -0400:
> >I have a variable which I have placed in the SESSION attribute of the
> >REQUEST object. This variable is being initialized to a value of None by a
> >DTML method. If an error occurs after a form is submitted, the value of
> >this variable is set to the type of error that occurs. In the event that
> >an error does occur, the user is redirected to an error page. From the
> >error page, the user has the opportunity to return to the form via a
> >hyperlink. I need to use the value of this variable in this form but
> >it exists sometimes and other times it doesn't. The suprising part is that
> >it always exists on the error page. Simply by clicking on the link on the
> >error page, the value of this variable is sometimes lost. I am using
> >Safari as my browser. Has anyone else experienced the same problem? Any
> >help would be greatly appreciated. Thanks.
>
> You must be aware that sessions are tight into Zope's transaction
> system. When a Zope error happens, changes to the session
> are discarded as part of the transaction abort.
>
> --
> Dieter
>