Preventing duplicate form submission

how do i prevent from the form being submitted twice in case user clicks the submit button twice?

Search at the net "struts tokens".

Similar Messages

Preventing duplicate form submission when page is loaded from history

Hi
We have record insertion forms some of which insert unique
records into sql databases and some which may not. Is there a way
of stopping the user pulling the page from history (or using the
back button) and then resubmitting the data?
I have put a trigger on the databases that basically updates
existing data rather than re-inserting it if a duplicate is entered
but as some of the record submissions are not unique this isn't
always possible. I would also rather restrict the submission client
side to reduce bandwidth and database calls.
I have tried various 'no caching' techniques on the page but
none seem to work. Anyone have any bright ideas ... I am all out of
ideas bright or not!!!
TIA
Karen

Karen
I have used session variables to control this sort of thing.
Basically the
insert/update statement tests for the existance of a variable
with a
particular name. If no variable exists then this will
indicate that the
request is coming from a history file, and it will not allow
the process.
Equally as part of the insert process change the value in the
variable and
do not allow and insert if the variable holds that value.
Paul Whitham
Certified Dreamweaver MX2004 Professional
Adobe Community Expert - Dreamweaver
Valleybiz Internet Design
www.valleybiz.net
"big_old_bird" <[email protected]> wrote in
message
news:e2totv$ec9$[email protected]..
> Hi
>
> We have record insertion forms some of which insert
unique records into
> sql
> databases and some which may not. Is there a way of
stopping the user
> pulling
> the page from history (or using the back button) and
then resubmitting the
> data?
>
> I have put a trigger on the databases that basically
updates existing data
> rather than re-inserting it if a duplicate is entered
but as some of the
> record
> submissions are not unique this isn't always possible. I
would also
> rather
> restrict the submission client side to reduce bandwidth
and database
> calls.
>
> I have tried various 'no caching' techniques on the page
but none seem to
> work. Anyone have any bright ideas ... I am all out of
ideas bright or
> not!!!
>
> TIA
> Karen
>

Prevent duplicate form submission from same user

What's the best way to prevent the same person/computer from
submitting a form? I am wondering about cookies, ip address,
etc.

Rking1966 wrote
I am wondering about cookies...
You got me wondering, too. I thought of something like:
formPage.cfm
============
<cfif isDefined("cookie.isFormSubmitted") and
cookie.isFormSubmitted>
You have already submitted the form. You may only do so
once.<br>
<p>
<a href="someOtherBusinessPage.cfm">To
business</a>
</p>
<cfelse>
<form action="actionPage.cfm" method="post">
<input name="field1" type="Text">
<input name="send" type="Submit" value="Send">
</form>
</cfif>
actionPage.cfm
=============
<cfif NOT isDefined("cookie.isFormSubmitted")>
<cfcookie name="isFormSubmitted" expires="never"
value="true">
</cfif>

How to prevent dupilcate form submission in JSF 1.x

Hi All
How to prevent dupilcate form submission in JSF 1.x application. As of now ,when the user clicked the submit button two times , application inserts 2 records in database.
Please suggest how to prevent dupliacte form submission without using Javascript. Kindlly share examples if any.
Regards,
DEV

Your problem is not really double submission but the fact that your application allows double insertion. The fix is functionally easy but technically very cumbersome: before inserting, check if the data already exists. If you build in such a guard you also protect against other methods of causing a resubmission, such as the browser back button.
PS: what's the deal with the no javascript limitation? You do realize that when you use JSF you're tanking your application full of javascript, right?

Preventing the Duplicate Form Submission??

Hi,
How to prevent the duplicate form from been submitted without disabling the back button in IE???
Thanks,
JavaCrazyLover

I had the same wonder. I found the following articles are quite helpful. They give detailed background info, a design pattern to deal with it, and a Struts implementation.
http://www.theserverside.com/articles/content/RedirectAfterPost/article.html
http://www.theserverside.com/articles/content/RedirectAfterPost2/article.html
Cheers,
littlemonster

Duplicate form submission

We created a form for our website to receive inquirys. On a regular basis we receive a duplicate of the same email.
Can anyone help?

We do not prevent people from submitting multiple times. Can you confirm if those duplicate are because people have submitted more than once or maybe click on the submit button multiple times?
Gen

How to prevent duplicate submission?

Hello!
I have a page for gathering some data:
private function saveHander():void {
// Gathering data into database.
<mx:TextInput id="name" />
<mx:TextInput id="age" />
<s:Button id="Submit" label="Submit" click="saveHandler();" />
When focus on submit button,I click at the button and press the space bar at the same time,saveHander function execute two times.
How can I prevent duplicate submission? thanks!

Assuming this is a form you are attempting to save, good UX practice is to disable the form once you begin local form validation (submit button clicked) prior to forming your data packet for save.
Doing so will prevent the anomaly you are experiencing.
In other cases where the above practice is not practical, you can setFocus to another component (off the submit button) because as long as the focus remains on the button, depressing the space bar will trigger the mouse event for the button. Research ADA compliance if you want more details.
HTH.

Preventing sensitive form re-submission

I want to prevent the refresh/re-submission of form on the server side(not using javascript).There is some way of using tokens in session and request to validate the request from the client.But I am not very sure how to go about it.Can anyone elaborate the same for me..Thanks in advance....

You're on the right track. To use tokens, there should be a number stored in the session, and that same number placed in a hidden field in the form.
Before serving the form, create a unique key - new Date().getTime() gives you a long with millisecond precision. Store that number in the session and also place it in a hidden field in the form. When the form is submitted, check the hidden against the number in the session. If they match, the form submission is valid; remove the key and process the form. If the user tries to submit the same form by using the "back" button, the number in the form no longer has a match in the session, and you reject the form submission.
example:
in the jsp that generates the form:
<%
   // create a number unique to the current millisecond
    long key = new java.util.Date().getTime();
    // place it in the session to be looked up later
    session.setAttribute( "formKey", Long.toString( key ) );
%>
<form>
    
    <input type="hidden" name="formKey" value="<%= key %>">
</form>in the code that processes the form:
String key = request.getParameter( "formKey" )
String sessionKey = (String)session.getAttribute( "formKey" );
if ( key.equals( sessionKey ) ){
    // process the form
} else {
    // key is not valid - send some error message
}

How to Prevent duplicates on Combination of Lookup columns in sharepoint 2010 using infopath 2010 form.

Hi All,
I have list with some Lookup columns like City, Pin, and Text Column Name. All these are required columns.
Now I want to prevent duplicates while submitting InfoPath form if a Combination of City,Pin & Name. (like a Composite primary in Database is used.)
Can some one help me on how to achieve this using InfoPath 2010 Rules, writing rule in Xpath.
Thanks in Advance.

1. Add a secondary data connection to the list where the form will be submitted.
2. Prior to submit via rules, set the query fields in the above connection: City, Pin & Name with values entered in the form. Query the data source and check if the result has values.
3. Show error messages accordingly if exists else continue with Submit.
This post is my own opinion and does not necessarily reflect the opinion or view of Slalom.

How do you prevent form submission if Spry validation fails?

After reviewing and implementing the SpryValidationConfirm and SpryValidationPassword widgets on a test page, I am unable to prevent the form from being submitted if the validation of either widget fails.
A feature of both widgets is "Blocking form submission if the password criteria is not met".
I ihave included my code below:
<script src="SpryAssets/SpryValidationPassword.js" type="text/javascript"></script>
<link href="SpryAssets/SpryValidationPassword.css" rel="stylesheet" type="text/css" />
<script src="SpryAssets/SpryValidationConfirm.js" type="text/javascript"></script>
<link href="SpryAssets/SpryValidationConfirm.css" rel="stylesheet" type="text/css">
<cfform method="post" action="result.cfm">
<span id="sprypassword1">
    <label>Password
      <cfinput type="password" name="mypassword1" id="mypassword1" size="30" />
    </label>
    <span class="passwordRequiredMsg">The password cannot be empty</span>
    <span class="passwordMinCharsMsg">The password must contain at least 15 characters</span>
    <span class="passwordInvalidStrengthMsg">The password must contain 2 special characters, 2 uppercase characters, 2 lowercase characters, and 2 numbers</span>
</span>
<span id="spryconfirm1">
    <label>Confirm Password
      <cfinput type="password" name="mypassword2" id="mypassword2" size="30" >
    </label>
    <span class="confirmRequiredMsg">A value is required</span>
    <span class="confirmInvalidMsg">The values don't match</span>
</span>
<cfinput type="submit" name="submit" value="Go to the next page">
</cfform>
<script type="text/javascript">

</script>

Thanks so much!
I removed the <cf prefixes from the cfform and cfinput tags and form now does not submit on invalid data.
I did not rename the 'password' fields as I think there needs to be 2 inputs that can be compared for the confirmation widget to function.
I have attatched the working code below:
<script src="SpryAssets/SpryValidationPassword.js" type="text/javascript"></script>
<link href="SpryAssets/SpryValidationPassword.css" rel="stylesheet" type="text/css" />
<script src="SpryAssets/SpryValidationConfirm.js" type="text/javascript"></script>
<link href="SpryAssets/SpryValidationConfirm.css" rel="stylesheet" type="text/css">
<form method="post" action="result.cfm">
<span id="sprypassword1">
    <label>Password
      <input type="password" name="mypassword1" id="mypassword1" size="30" />
    </label>
    <span class="passwordRequiredMsg">The password cannot be empty</span>
    <span class="passwordMinCharsMsg">The password must contain at least 15 characters</span>
    <span class="passwordInvalidStrengthMsg">The password must contain 2 special characters, 2 uppercase characters, 2 lowercase characters, and 2 numbers</span>
</span>
<span id="spryconfirm1">
    <label>Confirm Password
      <input type="password" name="mypassword2" id="mypassword2" size="30" >
    </label>
    <span class="confirmRequiredMsg">A value is required</span>
    <span class="confirmInvalidMsg">The values don't match</span>
</span>
<input type="submit" name="submit" value="Go to the next page">
</form>
<script type="text/javascript">

</script>
Again thanks so much!

How can I restore corrupt form history and prevent duplicate entries?

After having used 3.6.2, I recently upgraded to the latest version because I was getting tired of sites not working properly. For the most part, the transition has gone smoothly, but I lost all of my form history. It's not a huge deal, but having it was incredibly convenient for me. Instead of continuing to make all new form history entries, is it possible to use the old ones again? I have the original formhistory.sqlite file, but whenever I try to use it, it gets renamed to formhistory.sqlite.corrupt and Firefox creates a new file. Is the original too old and incompatible or is there something I can do?
Also, I'm having a bit of an issue with Firefox regularly creating duplicate form history entries. For instance, when opening the list for a Username text field, "ZombieToast" will be listed twice. I delete the duplicates when I come across them, but they keep sprouting up and I don't know why.

hello, the duplicate form entries are a bug in firefox 23 and will be fixed in the upcoming version.
please also [https://www.mozilla.org/en-US/plugincheck/ update your plugins] (some of them are out-dated & have security vulnerabilities that are actively exploited on the web).

Preventing duplicate post

Does anyone have a suggestion regarding how to prevent duplicate posts with JSF?
As an example, I have one form that allows users to carry out CRUD operations on the data that is being displayed. All successfully processed requests result in a post back to this same page.
I really want to avoid the problems that could occur if a delete or new request gets reposted by an impatient user.
Any suggestions are welcome. I should also note that for scalability reasons, I prefer to avoid solutions which require storing token, etc. in the session. I will settle for such a strategy in the absence of a better solution.

Thanks to all who responded. Just a couple follow-up questions and comments.
1. Can not use Shale. I'm in a heavily restricted corporate environment that limits me to IBM's (poor) implementation of JSF 1.0.
2. Would rather not address the problem soley through the use of JavaScript because users can always disable JavaScript.
3. Redirecting back to the page instead of forwarding back is not practical for three reasons. One, it will require my backing bean to make calls down into my application to retrieve data that would already have been readily available if I were forwarding, and I'm not comfortable with that performance decrease. Two, redirecting back to the form makes displaying of validation errors difficult. Three, redirecting to the page would successfully handle the circumstance where a user hits refresh, but doesn't handle the case of an impatient user who clicks the submit button twice while waiting for a response.
If anyone can propose a solution that works within these constraints, let me know.
Thanks again for those who are contributing.

Duplicate Form Submissions

I'm using the trial version to accept employment applications online and have received duplicate submissions from the same user which appear to count toward the total of 50 allowed. Is there a way to prevent duplicate submissions from the same user? Is there a way to remove the duplicates from my total submissions? Will this also happen in the paid version?
I also think there should be some validation such as CAPTCHA to limit spam, especially since each form submitted essentially costs us money. (It costs because it uses up our allowed number of submissions)
Thanks!

I was asking if the duplicates count towards my quota of 50 submissions?
Do they NOT count as long as I delete them?
And, do the exact same rules apply if I buy the upgrade?

How to prevent duplicate entry in Details block

Dear All
I am using Forms 10g.
I have a detail block.
There is a column called Ip_Address.
There i want to prevent duplicate entry .
How can i do this ?

hey i have a requirement that to restrict duplicate entry in both block(both multi record).the blocks are DEPT(MATER)
EMP(DETAIL)
the associated fieds in master block DEPT.DEPT_NO,in detail EMP.EMP_ID .
I have done' Kevin D Clarke’s calculated item ' both in master and detail block
its working fine for master block but in case of detail block its only respond to the current session(i.e. if the new value is inserted or save it will restrict another record to be inserted of that last record's value),it does not restrict duplicate value enter ,checking with other existing records(which are saved in earlier session,though after query it is shown on the form)
can anyone guide me why its not working

Prevent duplicate outputs within a table?

Hi at all,
we have a table in a subform. At the moment there are several lines with the same material. This is ok.
Is it possible to prevent duplicate output in the form? We want to print out the rest of this line but set the material to blank.
I tried this with scripting with java script:
If (data.TF.DATA.field.rawValue == data.TF.DATA[-1].field.rawValue)
data.TF.DATA.field.rawValue = "";
Is it possible to point on the previous line with
DATA[-1]
This works for the conditional break so I hope this will works too.
I don`t want to use group levels...
Thanks.
Timo

Thanks for your answer.
It works.
data.formular.DATA.field::ready:layout - (FormCalc, client)
If ($.rawValue == data.form.DATA[-1].field.rawValue) then
this.presence = "hidden";
endif

Preventing duplicate form submission

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