Thread

1. People click back button after saving a form and click submit again. Saving the form again. Usually when we have a auto generate Primary Key.
2. Another situation is when they are clicking the refresh button data is saved again. This often occurs when we are editing or using Update commands.

How can we stop saving data into data base when the refresh button is clicked.

1) Do a redirect after the data was successfully added (doesn’t prevent anyone from hitting the back button on the browser and submitting the form again)
2) Check for a session flag before storing data in your database which will only be set on the first time that a form is submitted. From the first successful submit/storing you will deny storing the same data (hash it) if the session flag exists.

That’s my two cents/solutions 😉

I got a script for getting it.

<$cript type="text/javascript">
$('form').submit(function() {
 $('.btn').attr('disabled', true).addClass('disabled');
});
</$cript>

I cannot figure out what it does. Can someone explain.