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MongoMapperでEmbeddedDocumentsを更新または破棄する方法がわからないようです。グーグルを通して、私はdelete_if {}他のようなさまざまな方法を見てきましたが、意味的にはどれもうまくいかないようです。これを支援するためにMongoMapperに組み込まれているものはありますか？

class Schedule
  include MongoMapper::Document

  key :name, String
  key :description, String
  key :active, Boolean, :default => false

  many :periods

  validates_presence_of :name

  def activate!
    set({:active => true}, :active => false)

    self.active = true
  end
end

class Period
  include MongoMapper::EmbeddedDocument

  key :number, Integer
  key :text, String
  key :start, Time
  key :finish, Time

  embedded_in :schedule

  before_validation :number!

  validates_presence_of :number
  validates_presence_of :text
  validates_presence_of :start
  validates_presence_of :finish

  validates_format_of :start, :with => /^(2[0-3]|[01]?[0-9]):([0-5]?[0-9])$/
  validates_format_of :finish, :with => /^(2[0-3]|[01]?[0-9]):([0-5]?[0-9])$/

  def number!
    unless self.number
      number = schedule.periods.count + 1
    end
  end
end
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1 に答える 1

1

次のテストは、2つの方法で埋め込みドキュメントを更新および削除する方法の例を示しています。（1）標準のアレイアクセサーとメソッドを使用するRuby経由、および（2）DB上の埋め込みドキュメントの更新と削除のためのMongo（MongoMapper / MongoDB）経由サーバ

参照：

http://www.ruby-doc.org/core-1.9.3/Array.html#method-i-delete_if
http://mongomapper.com/documentation/plugins/modifiers.html#set
http://www.mongodb.org/display/DOCS/Updating#Updating-%24set

'。'を含むハッシュキーに注意してください。古い（=>）構文を使用する必要があります。これがお役に立てば幸いです。

test / unit / period_test.rb

require 'test_helper'

def ppp(obj)
  puts obj.inspect.gsub(/(, |\[)#/, "\\1\n #")
end

class PeriodTest < ActiveSupport::TestCase
  def setup
    Schedule.delete_all
    @today = Time.now.midnight
  end

  test "update and remove embedded documents" do
    schedule = Schedule.create(name: 'George')
    assert_equal(1, Schedule.count)
    schedule.periods << Period.new(number: 1, text: 'period 1', start: @today + 8.hours, finish: @today + 9.hours)
    schedule.periods << Period.new(number: 2, text: 'period 2', start: @today + 9.hours, finish: @today + 10.hours)
    schedule.periods << Period.new(number: 3, text: 'period 3', start: @today + 10.hours, finish: @today + 11.hours)
    schedule.periods.last.finish = @today + 12.hours #update in Ruby
    schedule.save
    assert_equal(1, Schedule.count)
    puts "schedule with three periods --------"
    ppp Schedule.first
    schedule.periods.delete_if {|period| period.text == 'period 2'} #remove in Ruby
    schedule.save
    puts "schedule after removing period 2 in Ruby --------"
    ppp Schedule.first
    Schedule.set( {name: 'George', 'periods.text' => 'period 1'}, {'periods.$.finish' => @today + 10.hours} ) #update embedded document in MongoDB
    puts "schedule after updatting period 1 via Mongo --------"
    ppp Schedule.first
    Schedule.pull( {name: 'George'}, { periods: { text: 'period 1'} } ) #remove embedded document in MongoDB
    puts "schedule after pulling period 1 via Mongo --------"
    ppp Schedule.first
  end
end

出力

Run options: --name=test_update_and_remove_embedded_documents

# Running tests:

schedule with three periods --------
#<Schedule _id: BSON::ObjectId('4ff732e77f11ba6fe9000001'), active: false, name: "George", periods: [
 #<Period _id: BSON::ObjectId('4ff732e77f11ba6fe9000002'), finish: Fri, 06 Jul 2012 13:00:00 UTC +00:00, number: 1, start: Fri, 06 Jul 2012 12:00:00 UTC +00:00, text: "period 1">,
 #<Period _id: BSON::ObjectId('4ff732e77f11ba6fe9000003'), finish: Fri, 06 Jul 2012 14:00:00 UTC +00:00, number: 2, start: Fri, 06 Jul 2012 13:00:00 UTC +00:00, text: "period 2">,
 #<Period _id: BSON::ObjectId('4ff732e77f11ba6fe9000004'), finish: Fri, 06 Jul 2012 16:00:00 UTC +00:00, number: 3, start: Fri, 06 Jul 2012 14:00:00 UTC +00:00, text: "period 3">]>
schedule after removing period 2 in Ruby --------
#<Schedule _id: BSON::ObjectId('4ff732e77f11ba6fe9000001'), active: false, name: "George", periods: [
 #<Period _id: BSON::ObjectId('4ff732e77f11ba6fe9000002'), finish: Fri, 06 Jul 2012 13:00:00 UTC +00:00, number: 1, start: Fri, 06 Jul 2012 12:00:00 UTC +00:00, text: "period 1">,
 #<Period _id: BSON::ObjectId('4ff732e77f11ba6fe9000004'), finish: Fri, 06 Jul 2012 16:00:00 UTC +00:00, number: 3, start: Fri, 06 Jul 2012 14:00:00 UTC +00:00, text: "period 3">]>
schedule after updatting period 1 via Mongo --------
#<Schedule _id: BSON::ObjectId('4ff732e77f11ba6fe9000001'), active: false, name: "George", periods: [
 #<Period _id: BSON::ObjectId('4ff732e77f11ba6fe9000002'), finish: Fri, 06 Jul 2012 14:00:00 UTC +00:00, number: 1, start: Fri, 06 Jul 2012 12:00:00 UTC +00:00, text: "period 1">,
 #<Period _id: BSON::ObjectId('4ff732e77f11ba6fe9000004'), finish: Fri, 06 Jul 2012 16:00:00 UTC +00:00, number: 3, start: Fri, 06 Jul 2012 14:00:00 UTC +00:00, text: "period 3">]>
schedule after pulling period 1 via Mongo --------
#<Schedule _id: BSON::ObjectId('4ff732e77f11ba6fe9000001'), active: false, name: "George", periods: [
 #<Period _id: BSON::ObjectId('4ff732e77f11ba6fe9000004'), finish: Fri, 06 Jul 2012 16:00:00 UTC +00:00, number: 3, start: Fri, 06 Jul 2012 14:00:00 UTC +00:00, text: "period 3">]>
.

Finished tests in 0.038952s, 25.6726 tests/s, 51.3452 assertions/s.

1 tests, 2 assertions, 0 failures, 0 errors, 0 skips
于 2012-07-06T19:02:34.473 に答える