How to show message of custom validation?



I'm using Bonita Studio community version 7.8 and I'm newcomer in Angular js.

I add a new validation in a custom widget:

1. add module in "Required angular modules"

2. add js file in "Assets"

3. add attributes of module to my input

Now I wanna to show error message after input, But I don't know How do I do!

New validation works and show relevant class added to input.

How I add my message in ng-messages-include:

No answers yet.