mongoid_test.rb

[od]$ rails c
Loading development environment (Rails 3.0.6)
ruby-1.9.2-p180 :001 > Deparment.all
 => #<Mongoid::Criteria
  selector: {},
  options:  {},
  class:    Deparment,
  embedded: false>
 
ruby-1.9.2-p180 :002 > Deparment.all.entries
 => [] 
ruby-1.9.2-p180 :003 > d = Deparment.create(:name => 'd1')
 => #<Deparment _id: 4da182c615c7cc695a000001, _type: nil, _id: BSON::ObjectId('4da182c615c7cc695a000001'), name: "d1", email: nil, operator_ids: []> 
ruby-1.9.2-p180 :004 > d2 = Deparment.create(:name => 'd2')
 => #<Deparment _id: 4da182d115c7cc695a000002, _type: nil, _id: BSON::ObjectId('4da182d115c7cc695a000002'), name: "d2", email: nil, operator_ids: []> 
ruby-1.9.2-p180 :005 > o1 = Operator.new(:name => 'o1')
 => #<Operator _id: 4da182e915c7cc695a000003, _type: nil, _id: BSON::ObjectId('4da182e915c7cc695a000003'), username: nil, name: "o1", email: nil, deparment_ids: []> 
ruby-1.9.2-p180 :006 > o2 = Operator.new(:name => 'o2')
 => #<Operator _id: 4da182ee15c7cc695a000004, _type: nil, _id: BSON::ObjectId('4da182ee15c7cc695a000004'), username: nil, name: "o2", email: nil, deparment_ids: []> 
ruby-1.9.2-p180 :007 > o1.save
 => true 
ruby-1.9.2-p180 :008 > o2.save
 => true 
ruby-1.9.2-p180 :009 > dd = Deparment.create(:operator_ids => [o1._id])
 => #<Deparment _id: 4da1831515c7cc695a000005, _type: nil, _id: BSON::ObjectId('4da1831515c7cc695a000005'), name: nil, email: nil, operator_ids: [BSON::ObjectId('4da182e915c7cc695a000003')]> 
ruby-1.9.2-p180 :010 > dd.operators
 => [#<Operator _id: 4da182e915c7cc695a000003, _type: nil, _id: BSON::ObjectId('4da182e915c7cc695a000003'), username: nil, name: "o1", email: nil, deparment_ids: []>] 
ruby-1.9.2-p180 :011 > o1
 => #<Operator _id: 4da182e915c7cc695a000003, _type: nil, _id: BSON::ObjectId('4da182e915c7cc695a000003'), username: nil, name: "o1", email: nil, deparment_ids: []> 
ruby-1.9.2-p180 :012 > o1.save
 => true 
ruby-1.9.2-p180 :013 > o1
 => #<Operator _id: 4da182e915c7cc695a000003, _type: nil, _id: BSON::ObjectId('4da182e915c7cc695a000003'), username: nil, name: "o1", email: nil, deparment_ids: []> 
ruby-1.9.2-p180 :014 > ddd = Deparment.create(:operators => [o1])
 => #<Deparment _id: 4da1835415c7cc695a000006, _type: nil, _id: BSON::ObjectId('4da1835415c7cc695a000006'), name: nil, email: nil, operator_ids: [BSON::ObjectId('4da182e915c7cc695a000003')]> 
ruby-1.9.2-p180 :015 > ddd.save
 => true 
ruby-1.9.2-p180 :016 > o1
 => #<Operator _id: 4da182e915c7cc695a000003, _type: nil, _id: BSON::ObjectId('4da182e915c7cc695a000003'), username: nil, name: "o1", email: nil, deparment_ids: [BSON::ObjectId('4da1835415c7cc695a000006')]> 
ruby-1.9.2-p180 :017 >