[Catalyst] Browser window/tab independent sessions
catalyst at iandocherty.com
Tue Jan 9 15:57:48 GMT 2007
Perrin Harkins wrote:
> Ian Docherty wrote:
>> What is still not clear is how to generate (for all possible ways of
>> opening a new window) a new URL encoded session value. e.g. cutting
>> and pasting a URL from one window into another will also copy the URL
>> encoded session so both windows would have the same state.
> It's not a problem. You have to stop thinking session IDs. If what
> you have in the URL is things like the current search term, it doesn't
> hurt anything for them to be there when the person copies the URL and
> pastes it into a new window. The new window's data will change as the
> person uses it, with no affect on the old window. The only way it can
> be a problem is if you put session IDs in the URL that are tied back
> to server-side state. Then both windows will be trying to change the
> same server-side state.
> In other words, for state information that you keep in the URLs,
> making a new window and pasting the URL into it will instantly split
> the new window's state from the old one.
OK, I see and understand. However, it also depends on the amount of
information that has to be stored and there is a limit (but I can't
remember what it is) in the length of a URL.
I can see I might need to put a lot of information into the URL, for
example when generating complex free-form reports based on a form (have
you seen the reporting system in RT for example).
I think I will have to put this thread in my subconscious and come back
to it later :)
Ian Docherty (IcyDee)
> As someone else pointed out, Apache::Session::Counted can also solve
> this problem, but most people will find it more confusing than just
> putting everything in the URLs.
> - Perrin
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