gistfile1.txt

I started with

      { :weight => 2.24, :count => 2, :date => to_utc(2014,11,10), :notes => "" }

then
      { :weight => 1.14, :date => to_utc(2014,11,10), :notes => "" }
      { :weight => 1.10, :date => to_utc(2014,11,10), :notes => "" }


But I only want one "thing" for each date, with the details stored inside.  I tried:

litters.insert(
  {:id => "43", :doe => "3BL", :buck => "C16", :birth_date => to_utc(2014,10,24),
    :kindled => 2, :survived => 2,
    :weights => [
      { :date => to_utc(2014,11,10),
        :avg_weight => 1.12,
        :count => 2,
        :data => [
          { :weight => 1.14, :id => "", :notes => "" },
          { :weight => 1.10, :id => "", :notes => "" }
        ]
      }
    ]
  }
)

But that gives:

load.rb:56: syntax error, unexpected {, expecting ']'
          { :weight => 1.10, :id => "", :notes => "" }
           ^
load.rb:57: syntax error, unexpected ']', expecting end-of-input

The whole thing is here:  https://github.com/wsmoak/nivens/blob/master/mongo-ruby/load.rb

Looking at http://www.json.org at the definition of an array ... what am I doing wrong?