validation message not displayed
I am running the latest travel tool sample application downloaded from github. The process runs well but the validation message as set in process "constraints is not displayed on form in browser." I have removed the $form.$invalid on submit button for travel request submission form to allow request to go to server so that validation occurs at server and in case of failure, message is displayed on screen.
How to show the form field validation failure messages on screen? The messages that I have put in contract constraints also does not get displayed on screen on failure in meeting condition.
Thirdly what is the code to get the value of a form field.