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jin1212-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org

2008-Jan-22 00:03 UTC

prototype 1.6 Ajax.PeriodicalUpdater executing old scripts??

Hello ,

I have a PeriodicalUpdater executing every x seconds and sends a ajax
request to update an element.
Each time it comes back, the element is getting replaced with some
html and and possibly <script>coolFunction()</script>.
This seems to work fine when for prototype 1.5.
However when I upgraded to prototype 1.6, it seems to execute
coolFunction() as many times as the request has been called.

For example: the PeriodicalUpdater has already send out 5 request
already without <script>coolFunction</script>, on the 6th one the
response has a <script>coolFunction</script>. Prototype will call
coolFunction six times.

What is the problem here? I didnt used to have it when I used
prototype 1.5

Any help is appreciated
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Justin Perkins

2008-Jan-22 03:12 UTC

head link

Re: prototype 1.6 Ajax.PeriodicalUpdater executing old scripts??

On Jan 21, 2008 6:03 PM, jin1212-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
<jin1212-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> For example: the PeriodicalUpdater has already send out 5 request
> already without <script>coolFunction</script>, on the 6th one
the
> response has a <script>coolFunction</script>. Prototype will
call
> coolFunction six times.
Well that doesn''t sound right at all. Do you have an example page or
at least the HTML/JavaScript that can be used to reproduce this?

-justin

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jin1212-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org

2008-Jan-22 14:41 UTC

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Re: prototype 1.6 Ajax.PeriodicalUpdater executing old scripts??

HTML:

----------------------------------------------------------------------------------------
<html>
  <head></head>
  <body onload="start()">
        <div id="status"></div>
  </div>
</html>
----------------------------------------------------------------------------------------



JAVASCRIPT:
----------------------------------------------------------------------------------------
function start(){
   new Ajax.PeriodicalUpdater(''status'',
''url'',
   {
      method: ''get'',
      parameters: "action_word=checkTimeout'',
      evalScripts: true,
      frequency: 5,
      decay: 1
  });
}

function coolFunction(){
   alert("I''m cool");
}
----------------------------------------------------------------------------------------


SERVER:
----------------------------------------------------------------------------------------
1st response 5 secs
<input type="hidden" name="timeout" value=""
/>
2nd response 10 secs
<input type="hidden" name="timeout" value=""
/>
3rd response 15 secs
<input type="hidden" name="timeout" value=""
/><script>coolFunction();</script>100th response 500 secs
<input type="hidden" name="timeout" value=""
/><script>coolFunction();</script>
----------------------------------------------------------------------------------------


On the browser:
----------------------------------------------------------------------------------------
1st response 5 secs
    nothing
2st response10 secs
    nothing
3st response 15 secs
    I see alert("I''m cool) 3 times
100th response 500 secs
    alerts gets called 100 times
----------------------------------------------------------------------------------------


I know it doesnt make sense, but that''s what I''m seeing. 
Maybe I''m
doing something stupid but why did it work in 1.5 and not work in 1.6.






On Jan 21, 9:12 pm, "Justin Perkins"
<justinperk...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On Jan 21, 2008 6:03 PM, jin1...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
<jin1...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > For example: the PeriodicalUpdater has already send out 5 request
> > already without <script>coolFunction</script>, on the 6th
one the
> > response has a <script>coolFunction</script>. Prototype
will call
> > coolFunction six times.
>
> Well that doesn''t sound right at all. Do you have an example page
or
> at least the HTML/JavaScript that can be used to reproduce this?
>
> -justin--~--~---------~--~----~------------~-------~--~----~
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Matt Foster

2008-Jan-22 21:36 UTC

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Re: prototype 1.6 Ajax.PeriodicalUpdater executing old scripts??

Someone else was just talking about the PU concatenating results
instead of overwriting them.

http://groups.google.com/group/rubyonrails-spinoffs/browse_thread/thread/22249f33eed9876a#84d82d160cc6bc7c

If this is an error, it would be a very simple patch.





On Jan 22, 9:41 am, "jin1...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org"
<jin1...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> HTML:
>
>
----------------------------------------------------------------------------------------
> <html>
>   <head></head>
>   <body onload="start()">
>         <div id="status"></div>
>   </div>
> </html>
>
----------------------------------------------------------------------------------------
>
> JAVASCRIPT:
>
----------------------------------------------------------------------------------------
> function start(){
>    new Ajax.PeriodicalUpdater(''status'',
''url'',
>    {
>       method: ''get'',
>       parameters: "action_word=checkTimeout'',
>       evalScripts: true,
>       frequency: 5,
>       decay: 1
>   });
>
> }
>
> function coolFunction(){
>    alert("I''m cool");}
>
>
----------------------------------------------------------------------------------------
>
> SERVER:
>
----------------------------------------------------------------------------------------
> 1st response 5 secs
> <input type="hidden" name="timeout"
value="" />
> 2nd response 10 secs
> <input type="hidden" name="timeout"
value="" />
> 3rd response 15 secs
> <input type="hidden" name="timeout"
value="" /><script>coolFunction();</script>
>
> 100th response 500 secs
> <input type="hidden" name="timeout"
value="" /
>
> ><script>coolFunction();</script>
>
>
----------------------------------------------------------------------------------------
>
> On the browser:
>
----------------------------------------------------------------------------------------
> 1st response 5 secs
>     nothing
> 2st response10 secs
>     nothing
> 3st response 15 secs
>     I see alert("I''m cool) 3 times
> 100th response 500 secs
>     alerts gets called 100 times
>
----------------------------------------------------------------------------------------
>
> I know it doesnt make sense, but that''s what I''m seeing. 
Maybe I''m
> doing something stupid but why did it work in 1.5 and not work in 1.6.
>
> On Jan 21, 9:12 pm, "Justin Perkins"
<justinperk...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > On Jan 21, 2008 6:03 PM,
jin1...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
<jin1...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > For example: the PeriodicalUpdater has already send out 5 request
> > > already without <script>coolFunction</script>, on the
6th one the
> > > response has a <script>coolFunction</script>.
Prototype will call
> > > coolFunction six times.
>
> > Well that doesn''t sound right at all. Do you have an example
page or
> > at least the HTML/JavaScript that can be used to reproduce this?
>
> > -justin--~--~---------~--~----~------------~-------~--~----~
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