update sale_payment database

app/models/sale_audit.rb

@@ -1,6 +1,6 @@
 class SaleAudit < ApplicationRecord
   self.primary_key = "sale_audit_id"
-  
+
   #primary key - need to be unique generated for SaleAudit
   before_create :generate_custom_id
 
@@ -44,13 +44,14 @@ class SaleAudit < ApplicationRecord
     sale_audit.save!
   end
 
-  def record_payment(sale_id, remark, action_by)
+  def self.record_payment(sale_id, remark, action_by)
     sale_audit = SaleAudit.new()
     sale_audit.sale_id = sale_id
     sale_audit.action = "SALEPAYMENT"
     sale_audit.action_at = DateTime.now.utc
     sale_audit.action_by = action_by
     sale_audit.remark = remark
+    sale_audit.approved_by = Time.now
     sale_audit.save!
   end