gistfile1.txt

require "rubygems"
require "neo4j"

class Person
  include Neo4j::NodeMixin

  # define Neo4j properties
  property :name

  # define an one way relationship to any other node
  has_n :friends
end

Neo4j::Transaction.run do
  neo = Person.new {|n| n.name = 'Neo' }
  morpheus = Person.new {|n| n.name = 'Morpheus' }
  trinity = Person.new {|n| n.name = 'Trinity' }
  cypher = Person.new {|n| n.name = 'Cypher' }
  cypher.friends << morpheus
  smith = Person.new {|n| n.name = 'Agent Smith' }
  architect = Person.new {|n| n.name = 'Architect' }

  neo.friends << morpheus
  morpheus.friends << trinity
  cypher.friends << smith
  trinity.rels.outgoing(:loves) << neo
  architect.rels.outgoing(:has_coded) << smith
  
  #find Neo's friends
  neo.friends.each { |n| puts "Friend: #{n.name}" }

  #Neo's friends of friends
  neo.friends.depth(2).each { |n| puts "FOAF: #{n.name}" }

  #who is in love?
  architect.traverse.both(:friends, :has_coded, :loves).depth(:all).filter{ outgoing(:loves).to_a.size > 0 }.each do |n|
   puts "In love: #{n.name}"
  end
end