Hi Tim,
I think there are many easy ways to do this - and many not-so-easy ones too.
IMO, easiest for something simple like this is to just use the url.
See tweedly.net/page_by_url.txt for the code, or try it out at
tweedly.net/page_by_url.lc
(or try tweedly.net/page_by_url.lc?row=14 )
You can do something very similar using a cookie, with the 'row' value
stored in the cookie each time (remember to "put cookie ..." before
*any* other output.)
Or by using the cookie to hold the name of a file in which you store
this kind of info. This is necessary if you need to store a lot of data
- if there is not already a cookie, create a filename using something
like uuid(), and store the file name in it - then retrieve the cookie,
and read or write the file.
Alex.
On 12/08/2022 14:18, Tim Selander via use-livecode wrote:
Hi Matthias,
It is user specific, but I just tried the saving to a text file on the
server -- very fast. Got the user IP from $_Server, and used that in
the filename for easy later retrieval. How much data can a cookie
hold? Guess I'll test that.
One of the reasons I'm fussing with this is I'm trying to come up with
some kind of pagination system. I'm probably trying to re-invent the
wheel -- badly.
It's a simple membership list, with a few hundred records. Only want
to show 30 on the page at a time. I wonder if anyone has a LC sample
for doing that. I tried Ralph Bitter's Revigniter but just can't wrap
my head around it.
Using MySQL for testing, so could try to figure out using the CURSOR
feature. But know nothing about avoiding injection attacks, so may
fall back to using a .csv for the datafile. I've done that for all my
other projects....
Anyway, thanks for the info; no global variables, but file saves look
like they'll work!
Tim
On 2022.08.12 21:26, matthias rebbe via use-livecode wrote:
Hi Tim,
does the variable have a user specific value or a value, that changes
from time to time, but is the same for all users?
I've done something some time ago and used a text file on the server
which stored that value. In my case the value was not user specific
so it was an easy task.
If the variable is user specific, why don't you use a cookies for
that? That will grant that the value is available at all pages in
the same domain.
Regards,
Matthias
Am 12.08.2022 um 13:27 schrieb Tim Selander via use-livecode
<use-livecode@lists.runrev.com>:
As always, appreciate everyone's help.
Have made several little projects using LC Server on the on-rev.com
host. For the first time, I would like a global variable -- that is
a variable that would retain it's value even if the page is
re-loaded. Or if a user goes to another .lc page/file in the domain.
All my playing around, and Googling around, has been for nought. Is
there a way to hang on to a bit of data was you move around pages in
the same domain?
Thanks.
Tim Selander
Tokyo, Japan
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