andreasronge

source "https://rubygems.org"
ruby "2.1.1"
gem 'sinatra', '1.1.0'
gem 'neo4j-core', '3.0.0.alpha.11'

andreasronge

require 'java'
require 'forwardable'
require 'fileutils'

# Load Neo4j Jars for the jars folder
# Put the neo4j 2.0 jars there
jar_folder = File.expand_path('../jars', __FILE__)
jars = Dir.new(jar_folder).entries.find_all { |x| x =~ /\.jar$/ }
jars.each { |jar| require File.expand_path(jar, jar_folder) }

andreasronge

require 'neo4j'

class Show < Neo4j::Rails::Model
  property :show_name, type: String, index: :exact
  has_n :booked_bands
end

#I have another model, band.rb

class Band < Neo4j::Rails::Model

andreasronge

class TransactionalExec
  attr_accessor :commit_every, :block

  def initialize(commit_every, max_lines = nil, verbose = true, &block)
    @commit_every = commit_every
    @block = block
    @max_lines = max_lines
    @verbose = verbose
  end

andreasronge

source 'https://rubygems.org'

gem 'rails', '3.2.9'

# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'


gem 'jruby-openssl'

andreasronge

me = lookup('node_auto_index', 'name', "Joe").as(:me)
me > rel(:favorite) > node(:myFavorites) > rel(:tagged) > node(:tag) < rel(:tagged) < node(:theirFavorites) < rel(:favorite) < node(:people)
me != node(:people)
ret node(:people)[:name].as(:name), count.desc.as(:similar_favs)

andreasronge

Environment
===========
Mac OSX
jruby 1.7.0.preview2
java version "1.7.0_05"
Java(TM) SE Runtime Environment (build 1.7.0_05-b05)
Java HotSpot(TM) 64-Bit Server VM (build 23.1-b03, mixed mode)


How to Reproduce

andreasronge

require 'rubygems'
require 'neo4j-core'

def connect(d)
  d.each{|i| Neo4j::Relationship.new(:flies_to, i[:from], i[:to])}
end

tx = Neo4j::Transaction.new
@a, @b, @c, @z = %w[A B C D].map{|name| Neo4j::Node.new(:name => name)}
connect([ {:from=>@a, :to=>@b}, {:from=>@a, :to=>@c},  {:from=>@b, :to=>@c},

andreasronge

# load 'nodes.rb'
require 'rubygems'
require 'neo4j'

alice = Neo4j::Transaction.run { Neo4j::Node.new }
bob   = Neo4j::Transaction.run { Neo4j::Node.new }

Neo4j::Transaction.run do 
  alice[:name] = "alice"
  alice[:score] = [42,4] 

andreasronge

recommend = Neo4j.query do
   node(alice).where_not{|me| me > ':follows' > :user} > ':used_tag' > :tag < ':used_tag' < :user
   ret(node(:user), count(:tag).desc(count(:tag)))
end.first[:user]