Please see https://github.com/rails/rails/pull/11908
On Thursday, August 10, 2017 at 5:21:34 AM UTC-4, Bruno Sofiato wrote: > > Hi guys. > > How do you feel about an enhancement to Rails' *delegate *method that > enables us to define an arbitrary value which is bound to be returned > whenever the delegation target is *nil* ? > > I've came across an use case on which I was required to do so. What I did > was include the *on_nil: *option to *delegate*. I can use this new option > the value that should be returned. The value can be either a literal or a > Proc. When *on_nil *is not supplied the current behavior is followed > (i.e. *nil *is returned). Here is an example: > > class User < ActiveRecord::Base >> has_one :profile >> delegate :age, to: :profile, allow_nil: true, on_nil: 21 >> end > > >> User.new.age # 21 > > > Do you guys think this would be an useful enhancement to Rails' core ? > Best Regards > > > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-core+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-core@googlegroups.com. Visit this group at https://groups.google.com/group/rubyonrails-core. For more options, visit https://groups.google.com/d/optout.
