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[Ruby on rails]referencesってなに? 初心者メモ

Posted at

こんな感じのreferencesが出てきたコード

$ rails g model entry user:references room:references
$ rails g model message user:references room:references content:text

※userモデル、roomモデルは作成済み

こんな感じでうつと、

entry.rb
class Entry < ApplicationRecord
  belongs_to :user
  belongs_to :room
end
model.rb
class Message < ApplicationRecord
  belongs_to :user
  belongs_to :room
end

アソシエーションが勝手に入ってくれる。

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