Class: Returnly::Discounts::LineItem

Inherits:
Object
  • Object
show all
Defined in:
lib/returnly/discounts/line_item.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(order, adjustment) ⇒ LineItem

Returns a new instance of LineItem.



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# File 'lib/returnly/discounts/line_item.rb', line 6

def initialize(order, adjustment)
  @adjustment = adjustment
  @order      = order
end

Instance Attribute Details

#adjustment ⇒ Object (readonly)

Returns the value of attribute adjustment.



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# File 'lib/returnly/discounts/line_item.rb', line 4

def adjustment
  @adjustment
end

#order ⇒ Object (readonly)

Returns the value of attribute order.



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# File 'lib/returnly/discounts/line_item.rb', line 4

def order
  @order
end

Instance Method Details

#discount_amount(line_item, units = 0) ⇒ Object 



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# File 'lib/returnly/discounts/line_item.rb', line 11

def discount_amount(line_item, units = 0)
  return 0.0 if units <= 0
  return 0.0 if adjustment.adjustable != line_item

  units = line_item.quantity if units > line_item.quantity
  adjustment.amount * weight_of(line_item, units.to_d)
end