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how to define has many through polymorphic associations in rails

ammarvellous answered on April 5, 2023 Popularity 7/10 Helpfulness 3/10

answer how to define has many through polymorphic associations in rails

how to define has many through polymorphic associations in rails

Comment

class Subscription < ApplicationRecord
  belongs_to :subscribable, polymorphic: true
  belongs_to :user
end

class Podcast < ApplicationRecord
  has_many :subscriptions, as: :subscribable
  has_many :users, through: :subscriptions
end

class Newspaper < ApplicationRecord
  has_many :subscriptions, as: :subscribable
  has_many :users, through: :subscriptions
end

class User < ApplicationRecord
  has_many :subscriptions

  has_many :podcasts, through: :subscriptions, source: :subscribable, source_type: 'Podcast'
  has_many :newspapers, through: :subscriptions, source: :subscribable, source_type: 'Newspaper'
end

Popularity 7/10 Helpfulness 3/10 Language ruby

Source: www.sihui.io

Tags: has-many-through polymorphic-associations ruby

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