ruby-on-rails - Accessing associations of a model

Question

assume you have a case like this

class Artist < ActiveRecord::Base
  has_many :albums
  belongs_to :record_label

  def albums
    return 5
  end
end

Is it possible to access the albums relationship without using the Artist#albums, since it has been overridden?

This can happen with mixins or other random cases, it is mostly helpful for tests. Then you can say Artist#albums is actually a relationship to albums

Answer 1

使用association，并检索其范围：

a = Artist.first
a.association(:albums).scoped

请注意，association它没有记录，它返回的对象 ( ActiveRecord::Associations::Association) 也没有记录，这意味着scoped也没有记录。

Answer 2

请问-为什么需要覆盖#albums？这样做的缺点是违反了最小惊喜原则——每个人都希望#albums归还艺术家的专辑。

否则，我会简单地通过Album.where(artist_id: artist.id).