rescue member call and update oqs and js route bug

app/models/sale_item.rb

@@ -30,6 +30,7 @@ class SaleItem < ApplicationRecord
     # end
   end
 
+  # Calculate food total and beverage total
   def self.calculate_food_beverage(sale_items)
     food_prices=0
     beverage_prices=0
@@ -43,6 +44,7 @@ class SaleItem < ApplicationRecord
     return food_prices, beverage_prices
   end
 
+  # get food price or beverage price for item
   def self.get_price(sale_item_id)
     food_price=0
     beverage_price=0