Run method if association does not exit

Rails
1

Hello people,

Please advice with, I have some models and they have feeds, feed is a
small presenter for different types of content.

class Feed
belongs_to :attachable, :polymorphic => true
end

class Song
has_one :feed, :as => :attachable
end

class Gallery
has_one :feed, :as => :attachable
end

So when I call on some_song.feed, and there is no such feed for that
song, I want to create it inside Feed model

2

You can create by
Song.feed.create(:parameters => value)

Vitaliy Y. wrote in post #1013290:

Hello people,

Please advice with, I have some models and they have feeds, feed is a
small presenter for different types of content.

class Feed
belongs_to :attachable, :polymorphic => true
end

class Song
has_one :feed, :as => :attachable
end

class Gallery
has_one :feed, :as => :attachable
end

So when I call on some_song.feed, and there is no such feed for that
song, I want to create it inside Feed model