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Versions: 16
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Contents
module Piggybak
class TaxMethod < ActiveRecord::Base
has_many :tax_method_values, :dependent => :destroy
alias :metadata :tax_method_values
validates_presence_of :description
validates_presence_of :klass
accepts_nested_attributes_for :tax_method_values, :allow_destroy => true
attr_accessible :active, :tax_method_values_attributes, :description,
:klass
validates_each :tax_method_values do |record, attr, value|
if record.klass
calculator = record.klass.constantize
metadata_keys = value.collect { |v| v.key }.sort
if calculator::KEYS.sort != metadata_keys
if calculator::KEYS.empty?
record.errors.add attr, "You don't need any metadata for this method."
else
record.errors.add attr, "You must define key values for #{calculator::KEYS.join(', ')} for this tax method."
end
end
end
end
def klass_enum
Piggybak.config.tax_calculators
end
def self.calculate_tax(object)
total_tax = 0
TaxMethod.all.each do |tax_method|
calculator = tax_method.klass.constantize
if calculator.available?(tax_method, object)
total_tax += calculator.rate(tax_method, object)
end
end
total_tax
end
def admin_label
self.description
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems