require 'rubygems'
require 'relaxdb'

RelaxDB.configure :host => "localhost", :port => 5984, :logger => Logger.new(STDOUT)
RelaxDB.delete_db "test_user_age" rescue "ok"
RelaxDB.use_db "test_user_age"

class User < RelaxDB::Document
  property :age
end

10.times do |i|
  User.new(:age => i).save
end

map = <<FUNC
  function (doc) {
    if (doc.class === "User") {
      emit(doc.age, 1);
    }
  }
FUNC

reduce = <<FUNC
  function (keys, vals) {
    return sum(vals);
  }
FUNC

RelaxDB::DesignDocument.get("User").add_map_view("by_age", map).
  add_reduce_view("by_age", reduce).save
  
res = RelaxDB.view("User", "by_age") { |q| q.startkey(nil).endkey(2) }
puts "2 and under: #{RelaxDB.reduce_result(res)}" # prints 2

res = RelaxDB.view("User", "by_age") { |q| q.startkey(3).endkey({}) }
puts "3 and older: #{RelaxDB.reduce_result(res)}" # prints 7