Class: PromotionCredit

Inherits:
Adjustment
  • Object
show all
Defined in:
app/models/promotion_credit.rb

Instance Method Summary collapse

Instance Method Details

#applicable? ⇒ Boolean

Checks if credit is still applicable to order If source of adjustment is credit, it checks if it’s still valid

Returns:

  • (Boolean) 


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# File 'app/models/promotion_credit.rb', line 10

def applicable?
  adjustment_source && adjustment_source.eligible?(order) && super
end

#calculate_adjustment ⇒ Object 



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# File 'app/models/promotion_credit.rb', line 4

def calculate_adjustment
  adjustment_source && calculate_coupon_credit
end

#calculate_coupon_credit ⇒ Object

Calculates credit for the coupon.

If coupon amount exceeds the order item_total, credit is adjusted.

Always returns negative non positive.



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# File 'app/models/promotion_credit.rb', line 19

def calculate_coupon_credit
  return 0 if order.line_items.empty?
  amount = adjustment_source.calculator.compute(order.line_items).abs
  amount = order.item_total if amount > order.item_total
  -1 * amount
end

#total ⇒ Object 



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# File 'app/models/promotion_credit.rb', line 26

def total
  map(&:amount).sum
end