Check if a barcode has been already scanned

Dear all,

I would like to organize distribution lists management with Kobo by scanning barcodes present in the beneficiary card. However, i would like to check in real time (and not post treatment) if a barcode has already been scanned or not in order to avoid to have beneficiaries coming several times for the distribution.
Do you know if it is possible with Kobo?

Thanks in advance

Best

This will require some tweeks into your coding as well as how well you work on coordinating your submission.

I rarely use the submission path that requires the servers; I prefer using dropbox for submission and scripting the data aggregation. This way I can accomplish similar tasks such as signing in someone into an event using barcodes and ensuring that within 10 seconds the code used is invalidated.

Step 1. You need to take advantage of the pull function of then forms it acts more like vlook up.

Step 2: Code to ensure that status is updated.

PS. am writting from the phone let me type this more elaborately later on.

S. Aloo

···

On Tue, 23 Feb 2016 06:21 Fabien Cassan, fabien...@gmail.com wrote:

Dear all,

I would like to organize distribution lists management with Kobo by scanning barcodes present in the beneficiary card. However, i would like to check in real time (and not post treatment) if a barcode has already been scanned or not in order to avoid to have beneficiaries coming several times for the distribution.
Do you know if it is possible with Kobo?

Thanks in advance

Best

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1 Like

Thanks a lot for your feedback. Waiting then for your additional infos later on.

Best

···

On Mon, Feb 29, 2016 at 7:43 PM, Aloo Stephen stepha...@gmail.com wrote:

This will require some tweeks into your coding as well as how well you work on coordinating your submission.

I rarely use the submission path that requires the servers; I prefer using dropbox for submission and scripting the data aggregation. This way I can accomplish similar tasks such as signing in someone into an event using barcodes and ensuring that within 10 seconds the code used is invalidated.

Step 1. You need to take advantage of the pull function of then forms it acts more like vlook up.

Step 2: Code to ensure that status is updated.

PS. am writting from the phone let me type this more elaborately later on.

S. Aloo

On Tue, 23 Feb 2016 06:21 Fabien Cassan, fabien...@gmail.com wrote:

Dear all,

I would like to organize distribution lists management with Kobo by scanning barcodes present in the beneficiary card. However, i would like to check in real time (and not post treatment) if a barcode has already been scanned or not in order to avoid to have beneficiaries coming several times for the distribution.
Do you know if it is possible with Kobo?

Thanks in advance

Best

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Dear Fabien, Dear Aloo

I know this has been a while now, but did you find a solution for this? I have exactly the same problem: I want to scan a barcode and get a constraint message if the barcode has already been scanned within the same survey.

Best,
Dominic

···

On Thursday, March 3, 2016 at 2:53:44 AM UTC+1, Fabien Cassan wrote:

Thanks a lot for your feedback. Waiting then for your additional infos later on.

Best

On Mon, Feb 29, 2016 at 7:43 PM, Aloo Stephen step...@gmail.com wrote:

This will require some tweeks into your coding as well as how well you work on coordinating your submission.

I rarely use the submission path that requires the servers; I prefer using dropbox for submission and scripting the data aggregation. This way I can accomplish similar tasks such as signing in someone into an event using barcodes and ensuring that within 10 seconds the code used is invalidated.

Step 1. You need to take advantage of the pull function of then forms it acts more like vlook up.

Step 2: Code to ensure that status is updated.

PS. am writting from the phone let me type this more elaborately later on.

S. Aloo

On Tue, 23 Feb 2016 06:21 Fabien Cassan, fabi...@gmail.com wrote:

Dear all,

I would like to organize distribution lists management with Kobo by scanning barcodes present in the beneficiary card. However, i would like to check in real time (and not post treatment) if a barcode has already been scanned or not in order to avoid to have beneficiaries coming several times for the distribution.
Do you know if it is possible with Kobo?

Thanks in advance

Best

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Pull a file and write for example a Yes or No to status. Then work your code to verify if status is No, show scan barcode otherwise display error message and proceed to next question.

Here is how we used this feature.

  1. File containing details of beneficiaries was uploaded to xlsform

  2. The field officer search for beneficiary using their beneficiary code

  3. Field officer complete a questionnaire and scan code on beneficiary card

  4. If a constraint field already has a Yes, a warning message is displayed to the user and survey ends otherwise a Yes is written to a column and user continue.

Hope this is helpful. You may also share your code so we can update and send back to you.

Joseph

···

On Thursday, 15 February 2018 09:33:28 UTC+1, dom...@gmail.com wrote:

Dear Fabien, Dear Aloo

I know this has been a while now, but did you find a solution for this? I have exactly the same problem: I want to scan a barcode and get a constraint message if the barcode has already been scanned within the same survey.

Best,
Dominic

On Thursday, March 3, 2016 at 2:53:44 AM UTC+1, Fabien Cassan wrote:

Thanks a lot for your feedback. Waiting then for your additional infos later on.

Best

On Mon, Feb 29, 2016 at 7:43 PM, Aloo Stephen step...@gmail.com wrote:

This will require some tweeks into your coding as well as how well you work on coordinating your submission.

I rarely use the submission path that requires the servers; I prefer using dropbox for submission and scripting the data aggregation. This way I can accomplish similar tasks such as signing in someone into an event using barcodes and ensuring that within 10 seconds the code used is invalidated.

Step 1. You need to take advantage of the pull function of then forms it acts more like vlook up.

Step 2: Code to ensure that status is updated.

PS. am writting from the phone let me type this more elaborately later on.

S. Aloo

On Tue, 23 Feb 2016 06:21 Fabien Cassan, fabi...@gmail.com wrote:

Dear all,

I would like to organize distribution lists management with Kobo by scanning barcodes present in the beneficiary card. However, i would like to check in real time (and not post treatment) if a barcode has already been scanned or not in order to avoid to have beneficiaries coming several times for the distribution.
Do you know if it is possible with Kobo?

Thanks in advance

Best

You received this message because you are subscribed to the Google Groups “Kobo Users” group.

To unsubscribe from this group and stop receiving emails from it, send an email to kobo-users+...@googlegroups.com.

To post to this group, send email to kobo...@googlegroups.com.

Visit this group at https://groups.google.com/group/kobo-users.

For more options, visit https://groups.google.com/d/optout.

You received this message because you are subscribed to a topic in the Google Groups “Kobo Users” group.

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1 Like

Hello all,

Was anyone able to find a solution for this?
I am trying to create some sort of warning if a barcode is scanned twice within the same form…

Best
Joe

Hi
As regards this query

Kindly have a look at this response here
Stephane

1 Like