I have a page that posts data from a form to a mysql database.
The problem is that if the user hits the reload button on the browser, the
data will be posted again, resulting in a duplicate record.
How can I avoid that?
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Would'nt the simplest just setting one of the rows as UNIQUE? Or you can add
one query that checks if one of the values already exists in the database.
Best regards,
Martin
-Original Message-
From: Hallvard [mailto:[EMAIL PROTECTED]
Sent: 30. juli 2005 12:17
To: php-db@lists.php.net
in my opinion you can do the following:
1) once the user submitted the form, redirect to a new page
OR
2) may have a unique column in database to avoid duplication like userid
etc.
With Best Wishes
Balwant Singh
INDO ASIAN FUSEGEAR LTD.
A-39, HOSIERY COMPLEX
PHASE
Do a seek on the fields which cannot be duplicated; if there's a
hit reload the page with the appropriate error message, otherwise reload
the page with a success message.
Although I have not worked with AJAX, this would appear to be an excellent
spot to use it. Silently check after focus
after entering the data, send the user to another (confirmation) page...then
you avoid the possiblity of duplicates
Bastien
From: Miles Thompson [EMAIL PROTECTED]
To: Hallvard [EMAIL PROTECTED], php-db@lists.php.net
Subject: Re: [PHP-DB] Duplicate record
Date: Sat, 30 Jul 2005 10:54:16 -0300
You could use next simple rules to avoid this problem:
1. Never change anything in your storage (database) by GET HTTP request
method.
2. Never prepare any Web page by POST method.
3. After Form is processed (with a POST method) use HTTP redirect to
corresponding GET page which should
Alexander Veremyev wrote:
You could use next simple rules to avoid this problem:
1. Never change anything in your storage (database) by GET HTTP
request method.
2. Never prepare any Web page by POST method.
3. After Form is processed (with a POST method) use HTTP redirect to
corresponding
