Confusing Mongoid output - full source from examples below at: https://github.com/voxdolo/ding/tree/mongoid_fabrication

_session_output.irb

ruby-1.9.2-p0 :026 > s = Session.create
 => #<Session _id: 4d3845f0c1037b05f3000005, created_at: 2011-01-20 14:25:52 UTC, updated_at: 2011-01-20 14:25:52 UTC, name: "aa", custom: nil> 
ruby-1.9.2-p0 :027 > s.timers << Pomodoro.new
 => [#<Pomodoro _id: 4d384601c1037b05f3000006, created_at: 2011-01-20 14:26:09 UTC, updated_at: 2011-01-20 14:26:09 UTC, duration: 1500>] 
ruby-1.9.2-p0 :028 > s.timers.count
 => 1 
ruby-1.9.2-p0 :029 > s.reload
 => #<Session _id: 4d3845f0c1037b05f3000005, created_at: 2011-01-20 14:25:52 UTC, updated_at: 2011-01-20 14:25:52 UTC, name: "aa", custom: nil> 
ruby-1.9.2-p0 :030 > s.pomodoros.count
 => 0 
ruby-1.9.2-p0 :031 > s.pomodoros << Pomodoro.new
 => [#<Pomodoro _id: 4d38461fc1037b05f3000007, created_at: 2011-01-20 14:26:39 UTC, updated_at: 2011-01-20 14:26:39 UTC, duration: 1500>] 
ruby-1.9.2-p0 :032 > s.timers.count
 => 1 
ruby-1.9.2-p0 :033 > s.reload
 => #<Session _id: 4d3845f0c1037b05f3000005, created_at: 2011-01-20 14:25:52 UTC, updated_at: 2011-01-20 14:25:52 UTC, name: "aa", custom: nil> 
ruby-1.9.2-p0 :034 > s.timers.count
 => 2 
ruby-1.9.2-p0 :035 > s.timers
 => [#<Pomodoro _id: 4d384601c1037b05f3000006, created_at: 2011-01-20 14:26:09 UTC, updated_at: 2011-01-20 14:26:09 UTC, duration: 1500>, #<Pomodoro _id: 4d38461fc1037b05f3000007, created_at: 2011-01-20 14:26:39 UTC, updated_at: 2011-01-20 14:26:39 UTC, duration: 1500>] 
ruby-1.9.2-p0 :036 > s.pomodoros
 => [] 
ruby-1.9.2-p0 :037 > s.pomodoros.where( :created_at.gt => 1.day.ago )
 => #<Mongoid::Criteria
  selector: {:created_at=>{"$gt"=>2011-01-19 14:28:26 UTC}},
  options:  {},
  count:    0,
  matching: []>
 
ruby-1.9.2-p0 :038 > s.timers.where( :created_at.gt => 1.day.ago )
 => #<Mongoid::Criteria
  selector: {:created_at=>{"$gt"=>2011-01-19 14:28:39 UTC}},
  options:  {},
  count:    2,
  matching: [#<Pomodoro _id: 4d384601c1037b05f3000006, created_at: 2011-01-20 14:26:09 UTC, updated_at: 2011-01-20 14:26:09 UTC, duration: 1500>, #<Pomodoro _id: 4d38461fc1037b05f3000007, created_at: 2011-01-20 14:26:39 UTC, updated_at: 2011-01-20 14:26:39 UTC, duration: 1500>]>


# What I expect is that I can access Pomodoro's belonging to a Session via either Session#timers or Session#pomodoros. What am I doing wrong?

pomodoro.rb

class Pomodoro < Timer
  set_callback(:validation, :before) do
    self.duration = 25*60
  end
end

session.rb

class Session
  include Mongoid::Document
  include Mongoid::Timestamps

  field :name
  field :custom
  field :created_at, type: DateTime
  field :updated_at, type: DateTime

  validates_uniqueness_of :name
  validates_uniqueness_of :custom, :if => lambda{|s| s.custom }

  embeds_many :timers
  embeds_many :short_breaks
  embeds_many :long_breaks
  embeds_many :pomodoros

  # tons of stuff omitted for brevity
end

timer.rb

class Timer
  include Mongoid::Document
  include Mongoid::Timestamps

  field :duration, type: Integer
  field :created_at, type: DateTime

  embedded_in :session, inverse_of: :timers

  validates_presence_of :duration

  # tons of stuff omitted for brevity
end

to_a may help