move table

app/models/booking.rb

@@ -12,10 +12,27 @@ class Booking < ApplicationRecord
   scope :active, -> {where("booking_status != 'moved'")}
 
   def self.update_dining_facility(booking_arr, newd, old)
-     booking_arr.each do |booking|
-       booking.dining_facility_id = newd
-       booking.save
-     end
+    table = DiningFacility.find(newd)
+    exist = table.get_booking
+    if exist
+      # order exists
+      booking_arr.each do |booking|
+        booking.dining_facility_id = newd
+        booking.booking_status = 'moved'
+        booking.save
+        booking.booking_orders.each do |bo|
+          bo.booking_id = exist.booking_id
+          bo.save
+        end
+      end
+    else
+      # new table
+      booking_arr.each do |booking|
+        booking.dining_facility_id = newd
+        booking.save
+      end
+    end
+
      new_dining = DiningFacility.find(newd)
      new_dining.make_occupied
      old_dining = DiningFacility.find(old)