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Versions: 14
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Contents
require_dependency 'spree/calculator'
module Spree
class Calculator::DefaultTax < Calculator
def self.description
Spree.t(:default_tax)
end
def compute(computable)
case computable
when Spree::Order
compute_order(computable)
when Spree::LineItem
compute_line_item(computable)
end
end
private
def rate
self.calculable
end
def compute_order(order)
matched_line_items = order.line_items.select do |line_item|
line_item.tax_category == rate.tax_category
end
line_items_total = matched_line_items.sum(&:total)
round_to_two_places(line_items_total * rate.amount)
end
def compute_line_item(line_item)
if line_item.tax_category == rate.tax_category
if rate.included_in_price
deduced_total_by_rate(line_item.total, rate)
else
round_to_two_places(line_item.total * rate.amount)
end
else
0
end
end
def round_to_two_places(amount)
BigDecimal.new(amount.to_s).round(2, BigDecimal::ROUND_HALF_UP)
end
def deduced_total_by_rate(total, rate)
round_to_two_places(total - ( total / (1 + rate.amount) ) )
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems