sale item report and rebate balance

app/models/sale.rb

@@ -16,6 +16,14 @@ class Sale < ApplicationRecord
 
   scope :open_invoices, -> { where("sale_status = 'new' and receipt_date BETWEEN '#{DateTime.now.utc.end_of_day}' AND '#{DateTime.now.utc.beginning_of_day}'") }
 
+  REPORT_TYPE = {
+  "daily" => 0,
+  "monthly" => 1,
+  "yearly" => 2
+  }  
+
+  SALE_STATUS_COMPLETED = "completed"  
+
   def generate_invoice_from_booking(booking_id, requested_by)
     booking = Booking.find(booking_id)
     status = false
@@ -328,6 +336,40 @@ class Sale < ApplicationRecord
     return daily_total
   end
 
+def self.get_by_range_by_saleitems(from,to,status,report_type)
+
+      query = Sale.select("
+                          mi.item_code as code,(SUM(i.qty) * i.unit_price) as grand_total,
+                          SUM(i.qty) as total_item," +
+                           " i.unit_price as unit_price,
+                           mi.name as product_name,
+                           mc.name as menu_category_name,
+                           mc.id as menu_category_id ")
+                          .group('mi.id')
+                          .order("mi.menu_category_id")    
+    
+        query = query.joins("JOIN sale_items i ON i.sale_id = sales.sale_id 
+                            JOIN menu_items mi ON i.product_code = mi.item_code" + 
+                            " JOIN menu_categories mc ON mc.id = mi.menu_category_id 
+                            JOIN employees ea ON ea.id = sales.cashier_id")
+       
+
+        query = query.where("receipt_date between ? and ? and sale_status=?",from,to,status)
+              
+
+
+    case report_type.to_i
+       when REPORT_TYPE["daily"]
+        return  query
+       when REPORT_TYPE["monthly"]
+        
+        return  query.group("MONTH(date)") 
+      when REPORT_TYPE["yearly"]
+         return query.group("YEAR(date)") 
+     end
+  
+end
+
   private
 
   def generate_custom_id