update

app/models/sale.rb

@@ -13,7 +13,7 @@ class Sale < ApplicationRecord
   has_many :sale_payments
   has_many :sale_orders
   has_many :bookings
-  
+
   scope :open_invoices, -> { where("sale_status = 'new' and receipt_date BETWEEN '#{DateTime.now.utc.end_of_day}' AND '#{DateTime.now.utc.beginning_of_day}'") }
 
   def generate_invoice_from_booking(booking_id, requested_by)
@@ -57,11 +57,11 @@ class Sale < ApplicationRecord
       self.tax_type = "exclusive"
 
       # set cashier by current login
-      self.cashier_id = requested_by.id
-      self.cashier_name = requested_by.name
-      
+      # TODO: requested_by is string , can't cast to id. error occur. please fix
+      # self.cashier_id = requested_by.id
+      self.cashier_name = requested_by
+      self.requested_by = requested_by
 
-      self.requested_by = requested_by.name
       self.requested_at = DateTime.now.utc
 
       Rails.logger.debug "Order -> #{order.id} | order_status -> #{order.status}"
@@ -267,7 +267,7 @@ class Sale < ApplicationRecord
   def self.search(search)
     if search
       # find(:all, :conditions => ['name LIKE ? OR contact_no LIKE ?', "%#{search}%", "%#{search}%"])
-      where("receipt_no LIKE ?", "%#{search}%",) 
+      where("receipt_no LIKE ?", "%#{search}%",)
     else
       find(:all)
     end