hi, i would like to know if i can use isUnique on a relation ? and how plz?

If you use a 1-n or 1-1 relationship, the ID at one (1-n) or both (1-1) ends of the relationship will have to be unique. Using that ID in another relationship will automatically break the existing relationship.

I've not seen this for one to many before. It would be awesome if like ActiveRecord there were scopes for uniqueness.

Ok ty i gonna see more my data models

@notrab if I have a 1-n relationship between User and Post, each Post ID can only be in the relationship once. Adding a post to another User will remove it from its current User