Composite id

[eugenio1590]

I am using the Grails Spring Security core for the security of the web app. And this working with this dependency very well. But I get an error when the primary key is a domain and not a value. I mean a composite primary key. For example:

userRole(meta:[key:['user','role']], user:[email: '[email protected]', domainClass: 'User'], role:[authority: 'ROLE_ADMIN', domainClass: 'Role'])

In this case (using the domain of the Spring Security) the primary key is a composite value that uses the primary key of the user object and the role object. But in the console, I get the following error:

Seed Error Inserting UserRole (user: null, role: null, id: null, version: null)
  - The [role] property of the class [class app.UserRole] can not be null
  - The [user] property of class [class app.UserRole] can not be null

The UserRole class is this:

@GrailsCompileStatic
@ToString(cache=true, includeNames=true, includePackage=false)
class UserRole implements Serializable {

	private static final long serialVersionUID = 1

	User user
	Role role
        
        ......

	static constraints = {
	    user nullable: false
		role nullable: false, validator: { Role r, UserRole ur ->
			if (ur.user?.id) {
				if (UserRole.exists(ur.user.id, r.id)) {
				    return ['userRole.exists']
				}
			}
		}
	}

	static mapping = {
		id composite: ['user', 'role']
		version false
	}
}