How do I make a binding mandatory?

Tool Set SME
1

Hi,
I want to make a binding mandatory. In my model I have a 1-to-many relationship, like teams to team members. I want to require my user to assign a team member to a team. Is there a modeling solution for this?
Cheers,
Lea

2

Please take a look at Make relationship between models mandatory

3

Or Is it possible to make the relationship required?

4

Basically, yes, you can in a CDM context. However, it is difficult to visualize the Error Message directly on the binding.

(There’s a very old modeling workaround that I describe here, How to hide a field (created in SME) for validation with styled components - #10 by malcolm-silver-ice, which should still work).

5

Thanks, that’s easy enough. However, it feels to me like I’m doing a workaround for a missing requirement (as I also have to do a workaround to display the error message). Shouldn’t I be able to mark a relationship as required (or specify in the relationship “must have a parent”)?

edited to add: I think this would be the corresponding requirement: A12-15411

6

Yes, A12-15411 is the requirement for mandatory links. There’s also an open requirement, A12-13297, relating to displaying errors on different UI elements.