Class: Calculator::FlatPercentItemTotal

Inherits:
Calculator
  • Object
show all
Defined in:
app/models/calculator/flat_percent_item_total.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Calculator

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

Class Method Details

.description ⇒ Object 



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# File 'app/models/calculator/flat_percent_item_total.rb', line 4

def self.description
  I18n.t("flat_percent")
end

Instance Method Details

#compute(object) ⇒ Object 



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# File 'app/models/calculator/flat_percent_item_total.rb', line 8

def compute(object)
  return unless object.present? and object.line_items.present?
  item_total = object.line_items.map(&:amount).sum
  value = item_total * self.preferred_flat_percent / 100.0
  (value * 100).round.to_f / 100
end