Class: Spree::Calculator::PercentPerItem

Inherits:
Spree::Calculator show all
Defined in:
app/models/spree/calculator/percent_per_item.rb

Overview

A calculator for promotions that calculates a percent-off discount for all matching products in an order. This should not be used as a shipping calculator since it would be the same thing as a flat percent off the entire order.

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Spree::Calculator

#available?, calculators, #description, register, #to_s

Class Method Details

.description ⇒ Object 



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# File 'app/models/spree/calculator/percent_per_item.rb', line 13

def self.description
  Spree.t(:percent_per_item)
end

Instance Method Details

#compute(object = nil) ⇒ Object 



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# File 'app/models/spree/calculator/percent_per_item.rb', line 17

def compute(object=nil)
  return 0 if object.nil?
  object.line_items.reduce(0) do |sum, line_item|
    sum += value_for_line_item(line_item)
  end
end