A question about refresh

[sheldonlg]

I have a page that gathers information from a database and shows a
status. Asynchronously, some other process modifies that status at a
shortly later time.

I have placed a button on the page to do a refresh of the page. I use
location.reload() as the onClick method.

Here are the results:
1 - Clicking the button does not show the changed status
2 - Hitting F5 does not show the changed status
3 - Clicking the refresh button on the menu bar does not show the
changed status
4 - Clicking the arrow to the right of the address field DOES show the
changed status.

I would like to know how I need to code my refresh button on the page so
that it shows the changed status like #4 above. Any help will be
appreciated.

(I have looked quite a bit through Google, but haven't found the answer
and changing an ini file is not really an option as this is a
mult-purpose page -- I inherited this rather old code).

 

[sheldonlg]

I have a page that gathers information from a database and shows a
status. Asynchronously, some other process modifies that status at a
shortly later time.

I have placed a button on the page to do a refresh of the page. I use
location.reload() as the onClick method.

Here are the results:
1 - Clicking the button does not show the changed status
2 - Hitting F5 does not show the changed status
3 - Clicking the refresh button on the menu bar does not show the
changed status
4 - Clicking the arrow to the right of the address field DOES show the
changed status.

I would like to know how I need to code my refresh button on the page so
that it shows the changed status like #4 above. Any help will be
appreciated.

(I have looked quite a bit through Google, but haven't found the answer
and changing an ini file is not really an option as this is a
mult-purpose page -- I inherited this rather old code).

....and BTW, if it means anything it is written with php4 code and
register_globals=on. (Can't be changed).

 

[Thomas 'PointedEars' Lahn]

I have a page that gathers information from a database and shows a
status. Asynchronously, some other process modifies that status at a
shortly later time.

I have placed a button on the page to do a refresh of the page. I use
location.reload() as the onClick method.

Here are the results:
1 - Clicking the button does not show the changed status
2 - Hitting F5 does not show the changed status
3 - Clicking the refresh button on the menu bar does not show the
changed status
4 - Clicking the arrow to the right of the address field DOES show the
changed status.

If it were not for 2, 3, and 4, window.location.replace(document.URL, true)¹
would have sufficed. However, because of those, you need to apply

I would like to know how I need to code my refresh button on the page so
that it shows the changed status like #4 above. Any help will be
appreciated.

This problem cannot be solved with client-side scripting alone.


PointedEars
___________
¹ Always use qualified references: window.location, window.open(…),
window.alert(…), etc.

 

[Thomas 'PointedEars' Lahn]

...and BTW, if it means anything it is written with php4 code and
register_globals=on. (Can't be changed).

It would better be changed soon, before it is too late.

<http://www.php.net/archive/2008.php#id2008-08-07-1>
<http://php.net/manual/en/ini.core.php>


PointedEars

 

[Thomas 'PointedEars' Lahn]

It would better be changed soon, before it is too late.

<http://www.php.net/archive/2008.php#id2008-08-07-1>
<http://php.net/manual/en/ini.core.php>

and

<http://php.net/manual/en/migration53.deprecated.php>


PointedEars

 

[Thomas 'PointedEars' Lahn]

It would better be changed soon, before it is too late.

<http://www.php.net/archive/2008.php#id2008-08-07-1>
<http://php.net/manual/en/ini.core.php>

and

<http://php.net/manual/en/migration53.deprecated.php>


F'up2 comp.lang.php

PointedEars

 

[sheldonlg]

It would better be changed soon, before it is too late.

Not my call! Besides, this is an INTRAnet application, so all users are
known. There is no way they are going to revamp everything in this
massive application. It still uses the feature that there are variables
that are the same name as the fields automatically without using gets or
posts.

 

[Jeff North]

| On 5/13/2011 3:08 PM, sheldonlg wrote:
| > I have a page that gathers information from a database and shows a
| > status. Asynchronously, some other process modifies that status at a
| > shortly later time.
| >
| > I have placed a button on the page to do a refresh of the page. I use
| > location.reload() as the onClick method.
| >
| > Here are the results:
| > 1 - Clicking the button does not show the changed status
| > 2 - Hitting F5 does not show the changed status
| > 3 - Clicking the refresh button on the menu bar does not show the
| > changed status
| > 4 - Clicking the arrow to the right of the address field DOES show the
| > changed status.
| >
| > I would like to know how I need to code my refresh button on the page so
| > that it shows the changed status like #4 above. Any help will be
| > appreciated.
| >
| > (I have looked quite a bit through Google, but haven't found the answer
| > and changing an ini file is not really an option as this is a
| > mult-purpose page -- I inherited this rather old code).
| >
|
| ...and BTW, if it means anything it is written with php4 code and
| register_globals=on. (Can't be changed).

So are you capturing the returned response from the ajax call?
Are you 100% sure that the information is being written to the
database?

 

[Thomas 'PointedEars' Lahn]

Not my call!

What kind of developer are you anyway? No, don't answer.

Besides, this is an INTRAnet application,
Irrelevant.

so all users are known.

All users are … listen to yourself!

There is no way they are going to revamp everything in this
massive application.

Then they deserve what they will get.

It still uses the feature that there are variables that are the same name
as the fields automatically without using gets or posts.

foreach(array('x', 'y', 'z') as $var)
{
$$var = $_REQUEST[$var];
}

does the same without compromising all security, preferably in local context
(you might want to exclude $_COOKIE, though).


F'up2 comp.lang.php

PointedEars

 

[Luuk]

I have a page that gathers information from a database and shows a
status. Asynchronously, some other process modifies that status at a
shortly later time.

I have placed a button on the page to do a refresh of the page. I use
location.reload() as the onClick method.

Here are the results:
1 - Clicking the button does not show the changed status
2 - Hitting F5 does not show the changed status
3 - Clicking the refresh button on the menu bar does not show the
changed status
4 - Clicking the arrow to the right of the address field DOES show the
changed status.

I would like to know how I need to code my refresh button on the page so
that it shows the changed status like #4 above. Any help will be
appreciated.

(I have looked quite a bit through Google, but haven't found the answer
and changing an ini file is not really an option as this is a
mult-purpose page -- I inherited this rather old code).

It looks like your browser is caching results, something like this:
<?php
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past
?>
(from: http://php.net/manual/en/function.header.php) might work. Your
browser should stop caching the results.

 

[Luuk]

It looks like your browser is caching results, something like this:
<?php
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past
?>
(from: http://php.net/manual/en/function.header.php) might work. Your
browser should stop caching the results.

oops, someone forwarded this thread to comp.lang.php and i replied to
that.....

but my answer has nothng to do with Javascript....