module Enumerable

Public Instance Methods

multi_group_by() { |o| ... } click to toggle source

# File lib/zenweb/extensions.rb, line 13
def multi_group_by
  r = Hash.new { |h,k| h[k] = [] }
  each do |o|
    Array(yield(o)).each do |k|
      r[k] << o
    end
  end
  r
end