Remove annoying shipping weight messages from spree_active_shipping

calculator_decorator.rb

# for now, all USPS shipments cannot exceed 70 lbs

# this is also a bit sneaky b/c it relies on a particular load order
# should require_dependency or something

# http://www.uship.com/freight/articles/parcel-weight-restrictions/

# Spree::ShippingMethod.all.map(&:calculator).select { |m| m.class.to_s.start_with? 'Spree::Calculator::Usps' }.each do |calculator|

[
  Spree::Calculator::Usps::PriorityMail,
  Spree::Calculator::Usps::MediaMail,
  Spree::Calculator::Usps::ExpressMail,
  Spree::Calculator::Usps::PriorityMailInternational
].each do |calculator_class|
  calculator_class.class_eval do
    def available?(order)
      multiplier = Spree::ActiveShipping::Config[:unit_multiplier]

      weight = order.line_items.inject(0) do |weight, line_item|
        weight + (line_item.variant.weight ? (line_item.quantity * line_item.variant.weight * multiplier) : 0)
      end

      # all usps cannot ship out unless 70lbs
      # this prevents us from getting a stupid error message that makes the user think they did somethign wrong
      weight < 1120
    end
  end
end

[
  Spree::Calculator::Ups::Ground,
  Spree::Calculator::Ups::SecondDayAir,
  Spree::Calculator::Ups::NextDayAir
].each do |calculator_class|
  calculator_class.class_eval do
    def available?(order)
      multiplier = Spree::ActiveShipping::Config[:unit_multiplier]

      weight = order.line_items.inject(0) do |weight, line_item|
        weight + (line_item.variant.weight ? (line_item.quantity * line_item.variant.weight * multiplier) : 0)
      end

      # all usps cannot ship out unless 150lb
      weight < 2400
    end
  end
end

Ok so you're making those Calculators unavailable for excessively heavy orders. But do you have other Calculators that are considered "available" for large size orders? Like Freight ones or something?

I don't do that, but that is something you could do.

For the clients situation, it made more sense to redirect them to a separate checkout process which redirected their order to a live sales personell's number.