implementation with intent

using_intend.rb

def sendEmail(checkoutDetails)
  if isCheckoutCompleted(checkoutDetails)
    # send an email saying checkout is complete
  else
    # send an email saying checkout errored out
  end
end

def isCheckoutCompleted(checkoutDetails)
  if(checkoutDetails.length == 1) # same as no of rows
    return true
  else
    return false
  end
end