Your problem description sounds more like a design issue than a classic
backtracking one. Can you be more explicit in what you are doing in
your code, where, and what is happening? Are the ivars all in pages or
are you storing state in the session as well?
Chuck
On Sep 15, 2004, at 1:33 PM, Benjamin Adair wrote:
Hello all,
I'm getting bit by the whole backtracking thing. I've created a simple
web application to allow our webmaster to maintain the users and
groups for our web site which authenticates against a MySQL database.
I'm finding pretty much that whenever the user moves forward within
the application logic and then backtracks within the browser and
attempts to do something else, the application's state doesn't match
and I'm having a difficult time thinking of a way (short of setting
the backtrack cache to 0 - which doesn't really help so much when the
browser doesn't refresh the page in the first place and is so
user-unfriendly) to work around things.
A specific example. I have a ivar, resultSetCurrentPage. If the user
proceeds to the 2nd page, which increments the ivar, backtracks, and
then attempts to edit a user listed on what was the first page..
They'll end up editing the corresponding user from the second page.
I have read through the following chapter on backtracking: http://developer.apple.com/documentation/WebObjects/Web_Applications/
BacktrackingAndCache/chapter_6_section_1.html#//apple_ref/doc/uid/
TP30000111
And have played with settings for 'pageRefreshOnBacktrackEnabled' and
read through messages from the list that I have saved over the past
year and really am not finding much luck.
It is interesting to me that Apple's Webmail application seems to
handle this properly.. You can read a message, back track, select a
different message to read and it loads properly.
Do I need to reorganize my logic? Is there something more I can do?
Any suggestions and help would be greatly appreciated.
TIA
Ben
--
Benjamin Adair
Central Office Database Programmer/Analyst
Cancer & Leukemia Group B
Phone: 773-702-6731
Fax: 312-345-0117
Email: email@hidden
Web: http://www.calgb.org/
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