Module: ActiveCart::CartStorage

Defined in:
lib/active_cart/cart_storage.rb

Instance Method Summary collapse

Instance Method Details

#add_to_cart(item, quantity = 1) ⇒ Object 



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# File 'lib/active_cart/cart_storage.rb', line 15

def add_to_cart(item, quantity = 1)
  if self.include?(item)
    index = self.index(item)
    self.at(index).quantity += quantity
  else
    item.quantity += quantity
    self << item
  end
end

#invoice_id ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/active_cart/cart_storage.rb', line 3

def invoice_id
  raise NotImplementedError
end

#quantity ⇒ Object 



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# File 'lib/active_cart/cart_storage.rb', line 11

def quantity
  inject(0) { |t, item| t + item.quantity }
end

#remove_from_cart(item, quantity = 1) ⇒ Object 



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# File 'lib/active_cart/cart_storage.rb', line 25

def remove_from_cart(item, quantity = 1)
  if self.include?(item)
    index = self.index(item)
    if (existing = self.at(index)).quantity - quantity > 0
      existing.quantity = existing.quantity - quantity
    else
      self.delete_at(index)
    end
  end
end

#sub_total ⇒ Object 



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# File 'lib/active_cart/cart_storage.rb', line 7

def sub_total
  inject(0) { |t, item| t + (item.quantity * item.price)  }
end