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gringocl/chains.rb

Created January 29, 2014 18:50
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ActiveRecord query method chains
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chains.rb
User.all.includes(:questions).map(&:question_ids).flatten.group_by { |n| n }.map { |k,v| [ k, v.size ] }.sort_by { |a| a.last }.each { |a| max = a.last if a.last > max }.select { |e| e.last == max }
User.all.map(&:question_ids).flatten.group_by { |n| n }.map { |k,v| [ k, v.size ] }.sort_by { |a| a.last }.each { |a| max = a.last if a.last > max }.select { |e| e.last == max }
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