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Re: Is there a way to distinguish an auto-refresh from a manual page load?

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On 02/25/2012 10:21 AM, Beauregard T. Shagnasty wrote:
> bill wrote:
>
>> The Natural Philosopher wrote:
>>> Álvaro G. Vicario wrote:
>>>> The Natural Philosopher wrote:
>>>>> Cos I want to make a page slightly different depending... ..I cant
>>>>> think of any parameter I might pass that would be affected by
>>>>> autorefersh or not tho.
>>>>>
>>>>> Maybe javsacript and a timer would enable one?
>>>>
>>>> The "auto-refresh" concept implies some previous work on your side.
>>>> It'd help a lot to know what's the code you wrote to accomplish it
>>>> (JavaScript,<meta>  tag or whatever). Whatever, I have the impression
>>>> that it'd help even more to know the problem you want to fix rather
>>>> than just the solution you figured out.
>>>
>>> Well I used a meta tag so that the client refreshes in case new info
>>> has come in.
>>>
>>> However in this case the client can also POST new information, and I
>>> don't want it POSTING the same information every 5 minutes or whatever.
>>>
>>>
>>> The idea is to construct a not very real time view (5 minute
>>> granularity is good enough) on some data, some of which the user can
>>> change.
>>>
>>> I haven't tested it to see if a refresh is actually different from a
>>> submit.
>>
>> UNTESTED:
>> On the original submit, attach a parameter with a random number.
>>    Keep the sequence number in your database.  On every invocation
>> of the php script, check the number in the database.  If it is the same
>> as last time, it is a refresh. bill
>
> ..unless another visitor views the page in between. This 'database' would
> have to also include at least the IP address and the random number, or
> perhaps the IP and the date/time and the random number to ever have a
> shot at being close.

That's where the concept of a user session comes in handy.  I've been 
doing other things for some time now, but prior to that I was building a 
text editor and it was able to flawlessly detect re-sends of POST-ed 
information, etc.   The underlying code is doubtless more complex than 
most people would care to deal with, but it is possible.

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Is there a way to distinguish an auto-refresh from a manual page load? The Natural Philosopher <tnp@invalid.invalid> - 2012-02-22 22:26 +0000
  Re: Is there a way to distinguish an auto-refresh from a manual page load? Scott Johnson <noonehome@chalupasworld.com> - 2012-02-22 16:27 -0800
  Re: Is there a way to distinguish an auto-refresh from a manual page load? Jerry Stuckle <jstucklex@attglobal.net> - 2012-02-22 22:49 -0500
  Re: Is there a way to distinguish an auto-refresh from a manual page load? "Álvaro G. Vicario" <alvaro.NOSPAMTHANX@demogracia.com.invalid> - 2012-02-24 13:40 +0100
    Re: Is there a way to distinguish an auto-refresh from a manual page load? The Natural Philosopher <tnp@invalid.invalid> - 2012-02-24 13:26 +0000
      Re: Is there a way to distinguish an auto-refresh from a manual page load? bill <nobody@spamcop.net> - 2012-02-25 07:56 -0500
        Re: Is there a way to distinguish an auto-refresh from a manual page load? "Beauregard T. Shagnasty" <a.nony.mous@example.invalid> - 2012-02-25 17:21 +0000
          Re: Is there a way to distinguish an auto-refresh from a manual page load? crankypuss <no@email.thanks> - 2012-02-26 01:31 -0700
            Re: Is there a way to distinguish an auto-refresh from a manual page load? The Natural Philosopher <tnp@invalid.invalid> - 2012-02-26 12:25 +0000
              Re: Is there a way to distinguish an auto-refresh from a manual page load? crankypuss <no@email.thanks> - 2012-02-26 11:08 -0700
                Re: Is there a way to distinguish an auto-refresh from a manual page   load? "J.O. Aho" <user@example.net> - 2012-02-26 19:40 +0100
                Re: Is there a way to distinguish an auto-refresh from a manual page load? crankypuss <no@email.thanks> - 2012-02-26 13:06 -0700
                Re: Is there a way to distinguish an auto-refresh from a manual page load? The Natural Philosopher <tnp@invalid.invalid> - 2012-02-26 21:12 +0000
                Re: Is there a way to distinguish an auto-refresh from a manual page load? "Peter H. Coffin" <hellsop@ninehells.com> - 2012-02-26 12:44 -0600
                Re: Is there a way to distinguish an auto-refresh from a manual page load? crankypuss <no@email.thanks> - 2012-02-26 13:09 -0700
                Re: Is there a way to distinguish an auto-refresh from a manual page load? The Natural Philosopher <tnp@invalid.invalid> - 2012-02-26 21:14 +0000
                Re: Is there a way to distinguish an auto-refresh from a manual page load? crankypuss <no@email.thanks> - 2012-02-27 04:02 -0700
      Re: Is there a way to distinguish an auto-refresh from a manual page load? "Álvaro G. Vicario" <alvaro.NOSPAMTHANX@demogracia.com.invalid> - 2012-02-27 10:22 +0100
        Re: Is there a way to distinguish an auto-refresh from a manual page load? The Natural Philosopher <tnp@invalid.invalid> - 2012-02-27 12:00 +0000
          Re: Is there a way to distinguish an auto-refresh from a manual page load? "Álvaro G. Vicario" <alvaro.NOSPAMTHANX@demogracia.com.invalid> - 2012-02-27 14:08 +0100
            Re: Is there a way to distinguish an auto-refresh from a manual page load? The Natural Philosopher <tnp@invalid.invalid> - 2012-02-27 14:12 +0000
              Re: Is there a way to distinguish an auto-refresh from a manual page load? "Álvaro G. Vicario" <alvaro.NOSPAMTHANX@demogracia.com.invalid> - 2012-02-27 17:18 +0100
                Re: Is there a way to distinguish an auto-refresh from a manual page load? Jerry Stuckle <jstucklex@attglobal.net> - 2012-02-27 11:59 -0500

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