ruby on rails - Refactor case/when using strings -


i have number of these in controller:

def ups   @ups ||= shipper::ups.new(     env['ups_access_key'],     env['ups_password'],     env['ups_username'],     env['ups_account']   ) end

and have block gets called:

def type(number, carrier)   case carrier.slug   when 'ups'     number_details = ups.track(number)   when 'fedex'     number_details = fedex.track(number)   when 'usps'     number_details = usps.track(number)   end    return number_details end

but seems refactor quite bit if take carrier.slug , prepend lines ups.track(number).

is there way that?

you can use send before need make sure have right carrier slug

if %w[ups fedex usps].include?(carrier.slug)   send(carrier.slug).track(number) end

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