dashboard chart data

app/models/sale.rb

@@ -843,6 +843,28 @@ end
      return tax
   end
 
+  def self.top_products(today)
+    query = Sale.select("(SUM(i.qty) * i.price) as grand_total,SUM(i.qty) as total_item," +
+                        " i.price as unit_price,mi.name as product_name")
+                .joins("JOIN sale_items i ON i.sale_id = sales.sale_id JOIN menu_items mi ON i.product_code = mi.item_code")
+                .where("(i.qty > 0 ) and DATE_FORMAT(receipt_date,'%Y-%m-%d') = '#{today}'"+
+                      "and payment_status='paid' and sale_status= 'completed'")
+                .group('mi.name')
+                .order("SUM(i.qty) DESC").limit(5)
+  end
+
+  def self.hourly_sales(today)
+    query= Sale.select("grand_total").where('payment_status="paid" and sale_status = "completed" and DATE_FORMAT(receipt_date,"%Y-%m-%d") = ?',today)
+  end
+
+  def self.employee_sales(today)
+    query = Sale.select("e.name as employee_name,grand_total")
+            .where('payment_status="paid" and sale_status = "completed" and DATE_FORMAT(receipt_date,"%Y-%m-%d") = ?',today)
+            .joins("join employees e on e.id=sales.cashier_id")
+            .group('e.name')
+            .order('e.name ASC')
+  end
+
   private
 
   def generate_custom_id