Reputation: 712
How should I solve this relation between objects:
Object1 & Object2 are similiar "parent objects"
Object3 may be a child to Object1 or Object2.
How is this relation called and how should I code this in Grails?
Upvotes: 0
Views: 39
Reputation: 712
as I've found after asking this question:
I can have multiple belongsTo, just need to mark them nullable & check that only 1 of them are actually null. In my case,:
static belongsTo = [obj1: Object1, obj2: Object2];
static constraints = {
obj1(nullable: true, validator: {field, inst -> inst.obj2 || field})
obj2(nullable: true)
}
Upvotes: 1