This extension extracts a deprecated pricing hack from Solidus core. It consists of freedom patches on both Spree::Variant and Spree::LineItem, which your app should implement.

The orginal extension point allowed for any freedom patch, while this extension only allows the most common one: Gift wrapping. Here's what your app has to do for this extension to work:

Provide a method that specifies the Gift wrap price modifier amount for different currencies. For example:

Spree::Variant.class_eval do
  def gift_wrap_price_modifier_amount_in(_currency, value)
    value ? 2 : 0 # Two whatever currency added for gift wrapping
  end
end

Provide a persisted something on the line item to hold whether it is to gift wrapped or not. You will probably have done this by adding a column to the line item, which would make some sense. Here's a pure Ruby implementation:

Spree::LineItem.class_eval do
  attr_accessor :gift_wrap
end

Spree.config do |config|
  config.variant_pricer_class = Spree::Variant::GiftWrapPricer
end

If you need other price modifiers, like maybe unbranded carton, you need to write your own Pricer, and you have to change the method names in the freedom patches on Spree::LineItem and Spree::Variant Spree::LineItem#unbranded_carton / Spree::Variant#unbranded_carton_price_modifier_amount_in.

If you're actually using this, consider moving to a more sustainable approach. This extension will have support only for Solidus ~> 1.3. This extension is meant to ease your transition to better pricing solutions.

Add solidus_price_modifier to your Gemfile:

gem 'solidus_price_modifier', github: 'solidusio-contrib/solidus_price_modifier'

Bundle your dependencies and run the installation generator:

bundle
bundle exec rails g solidus_price_modifier:install

First bundle your dependencies, then run rake. rake will default to building the dummy app if it does not exist, then it will run specs. The dummy app can be regenerated by using rake test_app.

bundle
bundle exec rake

Copyright (c) 2016 [Stembolt], released under the New BSD License