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【備忘録】MongoDB使用してRailsでマイグレする方法

MongoDBのフィールドを追加等したときの
Rails側のマイグレーション方法の備忘録。
(コマンド叩く必要ないので)

例:
MongoDBの
コレクション:Userに
フィールド:emailを追加

環境

Rails v5.2.1
MongoDB v4.0.2

Rails

model側に

user.rb
class User
  include Mongoid::Document
  include Mongoid::Timestamps
  field :name, type: String
  # (追加)emailフィールド
  field :email, type: String

  validates :name,{presence: true, uniqueness: true}

  # (追加)emailカラムに関するバリデーション
  validates :email,{presence: true, uniqueness: true}

end

的な感じでフィールド追加すればいける

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