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Rails コーティング規約について 1

Posted at

はじめに

Ruby、Railsの基礎を学習中の方に向けて記載致します。
Rubyのコーティング規約はコチラをクリック願います。
私自身これからチーム開発を行う上で大事にしたい。知っておきたいことをOutputします。

#Routing
####ActiveRecordのモデル間の関連を表現するには、入れ子型でルートを定義する。

qiita.rb
class Post < ActiveRecord::Base
  has_many :comments
end

class Comments < ActiveRecord::Base
  belongs_to :post
end

# routes.rb
resources :posts do
  resources :comments
end

#ActiveRecord
####なるべくhas_and_belongs_to_manyよりhas_many :throughを利用する。

qiita.rb
# あまり良くない例
class User < ActiveRecord::Base
  has_and_belongs_to_many :groups
end

class Group < ActiveRecord::Base
  has_and_belongs_to_many :users
end

# 良い例
class User < ActiveRecord::Base
  has_many :memberships
  has_many :groups, through: :memberships
end

class Membership < ActiveRecord::Base
  belongs_to :user
  belongs_to :group
end

class Group < ActiveRecord::Base
  has_many :memberships
  has_many :users, through: :memberships
end

#さいごに
コーティング規約については毎日更新します。
皆様の復習等にご活用頂けますと幸いです。

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