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Re: Using the browser back button and updating an item-list
I think your problem has to do with the POST vars. Basically, in order
for that page to refresh those variables must be entered in. I think you
might come up with a way to handle it using "GET" variables that create
a "static" link.
In a "POST" situation, as I understand it, the browser tells the server
directly the info.
It goes a little some thing like this:
Say you connected to a web server (I recommend trying 'telnet' just to
give this a whirl) and type:
POST /cgi-bin/test.cgi HTTP/1.0
Content-Length: 19
name=Eugene&age=21
EOF
Well, then your program parses the data (name, age) and creates those as
values.
Now in a GET situation, one does a
GET /cgi-bin/test.cgi?name=Eugene&age=21
EOF
The point of all this being that a link is easy to reload/refresh. POST
vars are not.
Searches are 100% POST. You might just be out of luck on that unless you
can come up with a way to handle a GET. Or, perhaps remove the basket &
the expiration. Which is probably your best bet.
Miles Eddins wrote:
>
> ****** message to minivend-users from "Miles Eddins" <miles_eddins@hotmail.com> ******
>
> Hi Folks,
>
> I have gone round and round and round with this, trying to think of all the
> possible ways to accomplish this task. No luck yet. I have a persistent
> "mini basket" on all pages that just uses:
>
> [if items]
> [then]
> [item-list]
> [item-quantity]
> [item-field title]
> [/item-list]
> [/then]
> [else]Your shopping cart is empty.
> [/else]
> [/if]
>
> to list whatever a person has in their basket. Actually, I put this code in
> its own file and use [include ..] to pull it in, so it will work on
> flypage.html and browse1.html. Anyway, the problem is when I add an item to
> the basket (which takes me to basket.html) and then use the browser's back
> button to return to the page, the mini basket doesn't update itself (since
> the page is cached). Now if I put <META HTTP-EQUIV="expires" CONTENT="0"> on
> the page, that works out fine, and the mini basket updates itself to reflect
> the added items when I return to that page. However, when the page in
> question is the search results page, this is a problem because you get a
> "Data Expired" page telling you that this page resulted from a POST
> operation etc. etc. when you return to it.
>
> I have zero programming background, so this may be a dumb question, but is
> this something a scratch variable could take care of? By being passed when
> the user clicks on "Add Item" and then re-read when the browser's back
> button is pressed? Is there a "Scratch Variables for Beginners" somewhere?!
> Thanks,
>
> Miles
>
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