Class: Coupon::Calculator::FlatAmountOffPerUnit

Inherits:
Base
  • Object
show all
Defined in:
app/services/coupon/calculator/flat_amount_off_per_unit.rb

Overview

Flat AmountOff Per Unit, variant of FlatAmountOff, will discount the value
of flat amount once per quantity of the qualifying unit

Instance Method Summary collapse

Instance Method Details

#calculate(discount) ⇒ Object 



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# File 'app/services/coupon/calculator/flat_amount_off_per_unit.rb', line 5

def calculate(discount)
  @line_item_extractor.discountable_line_items.each do |line_item|
    allocated_amount = -[ @options[:flat_amount], line_item.discounted_price ].min
    allocate_to_line(line_item, discount, allocated_amount)
  end
end