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mrkurt/Gemfile

Created August 21, 2011 19:10
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The magical document eating has_many assignment
Raw
Gemfile
source :rubygems
gem 'mongoid'
Raw
output.sh
mrkurt-2:mongoid-test kurt$ ./run.sh
Parent has 10 kids
There are now 0 kids
mrkurt-2:mongoid-test kurt$
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test.rb
require 'mongoid'
Mongoid.configure do |config|
config.master = Mongo::Connection.new.db("document_eater")
end
class Kid
include Mongoid::Document
belongs_to :parent
end
class Parent
include Mongoid::Document
has_many :kids
end
Kid.destroy_all
Parent.destroy_all
p = Parent.create!
10.times do |n|
k = Kid.create!
p.kids << k
end
p.reload
puts "Parent has #{p.kids.count} kids"
kids = Kid.all.to_a
p = Parent.find(p.id)
p.kids = kids
puts "There are now #{Kid.count} kids"
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