Models for http://neo4jrb.readthedocs.org/en/latest/Introduction.html#activenode

docs_models.rb

class Person
  include Neo4j::ActiveNode
  property :name, type: String
  property :age, type: Integer

  has_many :out, :houses, type: 'OWNS_PROPERTY'
  has_many :out, :vehicles, type: 'OWNS_VEHICLE'
end

class House
  include Neo4j::ActiveNode
  property :address, type: String

  has_many :in, :people, origin: :houses
end

class Vehicle
  include Neo4j::ActiveNode
  property :year

  has_many :in, :owners, model_class: 'Person', origin: :vehicles
end

# To create a relationship, you can use << to append a new node or = to reset all relationships

person = Person.create(name: 'James', age: 15)
house = House.create(address: '560 Broadway')
person.houses << house

A more complicated example isn't ringing a bell but I'll think about it more...

If you wanted to flag someone as the owner of the house, you could do it a few ways. You could add a property to the relationship by changing the syntax used to create it, person.houses.create(house, owner: true), then you could find the owner later on by doing house.people.rel_where(owner: true).

Sometimes, though, adding properties to a relationship isn't a good idea. If you have a node with a ton of relationships of the same type but only a handful have the quality you desire, it might be better to create a second relationship that represents that state. For instance, at work, an account can be the owner and a member of an organization. Because organizations can have so many accounts, we wanted to handle ownership and membership separately, so organization.owners and organization.accounts represent two different relationships that both go from Org->Account.

As to adding a second relationship type, I think you were asking about how that would be represented. I think it's best to come up with different association names in that case. Like this:

class Person
  has_many :out, :owned_houses, type: 'OWNS_PROPERTY', model_class: 'House'
  has_many :out, :residences, type: 'LIVES_IN', model_class: 'House'
end

class House
  has_one :in, :owner, model_class: 'Person', type: 'OWNS_PROPERTY'
  has_many :in, :residents, model_class: 'Person', type: 'LIVES_IN'
  # OR...
  has_one :in, :owner, model_class: 'Person', origin: 'owned_houses'
  has_many :in, :residents, model_class: 'Person', origin: 'residences'
end