Commits on Feb 27, 2016

1. Introduce Module#delegate_missing_to …

   When building decorators, a common pattern may emerge:
   
       class Partition
         def initialize(first_event)
           @events = [ first_event ]
         end
   
         def people
           if @events.first.detail.people.any?
             @events.collect { |e| Array(e.detail.people) }.flatten.uniq
           else
             @events.collect(&:creator).uniq
           end
         end
   
         private
           def respond_to_missing?(name, include_private = false)
             @events.respond_to?(name, include_private)
           end
   
           def method_missing(method, *args, &block)
             @events.send(method, *args, &block)
           end
       end
   
   With `Module#delegate_missing_to`, the above is condensed to:
   
       class Partition
         delegate_missing_to :@events
   
         def initialize(first_event)
           @events = [ first_event ]
         end
   
         def people
           if @events.first.detail.people.any?
             @events.collect { |e| Array(e.detail.people) }.flatten.uniq
           else
             @events.collect(&:creator).uniq
           end
         end
       end
   
   David suggested it in rails#23824.

   

   gsamokovarov committed Feb 27, 2016
   Copy the full SHA

   335fcc2 View commit details

   Browse the repository at this point in the history