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pyCommitError on click of submit button



Developer creates an interaction case in the application with functionality which calls an activity. The activity contains Page-set-message and Flow-new methods.

If user fires a validation error via this page set message and then select another local action, then it clears the error message on page. At this page, user clicks a button on screen which is suppose to perform an ADD work if user clicks submit, it fails to submit and throws an error message to screen which is not expected behavior.

Error Messages

pyCommitError:** A commit cannot be performed because a deferred save of instance AB-XYZ-123 ICALL-20286 failed: code: <none> SQLState: <none> Message: <none>

Steps to Reproduce

1. Create an activity which will be called on click of a button.
2. Configure two methods Page-set-message and Flow-new on this activity.
3. Configure another local action which contains a button. configure an activity on this button which contains 'call ADD' step.
4. Run the flow and observe the behavior.

Root Cause

There were some uncommitted data present in the database due to this uncommitted data, when the second time user submits another flowaction, PRPC is throwing an error.

Once the Flow-new method fails, PRPC should rollback the all uncommitted data for the next commit operation to succeed.


Perform the following local-change:

Configure explicit rollback method in the same activity where Flow-New is there.
This Rollback must be called only when the Flow-New method fails.

Published October 6, 2015 - Updated October 8, 2020

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