CODEWITHSUNDEEP
ruby-on-railsruby
austinbv
austinbv

Reputation: 9491

Accessing associations of a model

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

Upvotes: 0

Views: 56

Answers (2)

Andrew Marshall
Andrew Marshall

Reputation: 96914

Use association, and retrieve its scope:

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

Note that association is not documented, and neither is the object it returns (ActiveRecord::Associations::Association), which means scoped isn't documented either.

Upvotes: 1

Stefan Kanev
Stefan Kanev

Reputation: 3040

May I ask - why do you need to override #albums? This has the disadvantage of violating the Principle of Least Surprise - everybody would expect #albums just to return the artist's albums.

Otherwise, I would access them simply by Album.where(artist_id: artist.id).

Upvotes: 0

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