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# File 'lib/spree/core/calculated_adjustments.rb', line 4
def self.included(klass)
klass.class_eval do
has_one :calculator, :class_name => "Spree::Calculator", :as => :calculable, :dependent => :destroy
accepts_nested_attributes_for :calculator
validates :calculator, :presence => true
def self.calculators
spree_calculators.send model_name_without_spree_namespace
end
def calculator_type
calculator.class.to_s if calculator
end
def calculator_type=(calculator_type)
klass = calculator_type.constantize if calculator_type
self.calculator = klass.new if klass && !self.calculator.is_a?(klass)
end
private
def self.model_name_without_spree_namespace
self.to_s.tableize.gsub('/', '_').sub('spree_', '')
end
def self.spree_calculators
Rails.application.config.spree.calculators
end
end
end
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