Class: CashRegister::NormalItem

Inherits:
Object
  • Object
show all
Includes:
Helper
Defined in:
lib/cash_register/normal_item.rb

Direct Known Subclasses

DiscountItem, FreeItem, Two4OneItem

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Helper

#format_price

Constructor Details

#initialize(deal, count) ⇒ NormalItem

Returns a new instance of NormalItem.



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# File 'lib/cash_register/normal_item.rb', line 9

def initialize(deal, count)
  @deal = deal
  @count = count
end

Instance Attribute Details

#count ⇒ Object

Returns the value of attribute count.



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# File 'lib/cash_register/normal_item.rb', line 7

def count
  @count
end

#deal ⇒ Object

Returns the value of attribute deal.



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# File 'lib/cash_register/normal_item.rb', line 7

def deal
  @deal
end

Instance Method Details

#billing ⇒ Object 



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# File 'lib/cash_register/normal_item.rb', line 14

def billing
  @billing ||= deal.price * count
end

#saving ⇒ Object 



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# File 'lib/cash_register/normal_item.rb', line 18

def saving
  0
end

#to_s ⇒ Object 



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# File 'lib/cash_register/normal_item.rb', line 22

def to_s
  "名称：#{deal.name}，数量：#{count}#{deal.unit}，单价：#{format_price deal.price}(元)，小计：#{format_price billing}(元)"
end