Try installing Corel Draw twice on California: What happens?
One of two things:
- If you didn't forget to create the Unique index in step 10.2
- You won't be able to: Scaffolding detects this constraint, and builds UI code that won't allow the user to violate the data model
- If you forgot to create the Unique index in step 10.2
- You will be able to do it in the UI, which will cause a DB exception on insert: Change the Exception Feedback Message in the save flow to ‘This software is already installed’.