Rails Upsert

upsert.rb

module ActiveRecordExtension
  extend ActiveSupport::Concern

  def self.upsert(attributes)
    begin
    	create(attributes)
    rescue ActiveRecord::RecordNotUnique, PG::UniqueViolation => e
        find_by_primary_key(attributes['primary_key']).
      	update(attributes)
    end
  end
end

ActiveRecord::Base.send(:include, ActiveRecordExtension)