diff --git a/app/models/seed_generator.rb b/app/models/seed_generator.rb
index 3a35bfac..1451b11e 100644
--- a/app/models/seed_generator.rb
+++ b/app/models/seed_generator.rb
@@ -1,42 +1,35 @@
 class SeedGenerator < ApplicationRecord
   # Generate ID for Tables
   def self.generate_id(model, prefix)
-    seed = SeedGenerator.find_by_model(model)    
-    new_receipt_no = 0
+    cur_val, next_val = self.update_seed(model)
 
-    if (seed.nil?)
-      seed = SeedGenerator.new()
-      seed.model = model
-      new_receipt_no = seed.next
-      seed.save
-    else
-      next_no = seed.next
-      # current_no = seed.next
-      # seed.next = seed.next + seed.increase_by
-      # seed.current = current_no
-      # seed.save
-      cur_val, next_val = self.update_seed(model, seed.next, seed.increase_by)   
-
-      if next_no == cur_val   
-        puts "SSS"
-        puts next_val             
-        cur_val2, next_val2 = self.update_seed(model, next_val, seed.increase_by)
-        puts next_val2
-        padding_len = 15 - prefix.length
-        saleOrderId = prefix +"-"+ cur_val2.to_s.to_s.rjust((14-prefix.length)+1,'0')
-        puts saleOrderId
-        return saleOrderId 
-      end 
-        
-      padding_len = 15 - prefix.length
-      saleOrderId = prefix +"-"+ cur_val.to_s.to_s.rjust((14-prefix.length)+1,'0')
-      return saleOrderId 
-
-    end
+    if (cur_val == 0)
+      cur_val, next_val = self.execute_query(model)
+    end 
 
     padding_len = 15 - prefix.length
-    saleOrderId = prefix +"-"+ seed.current.to_s.to_s.rjust((14-prefix.length)+1,'0')
-    return saleOrderId
+    saleOrderId = prefix +"-"+ cur_val.to_s.to_s.rjust((14-prefix.length)+1,'0')
+    return saleOrderId 
+  end
+
+  # Generate Receipt No
+  def self.new_receipt_no
+    seed = SeedGenerator.find_by_model("sale")
+    new_receipt_no = 0
+    if (seed.nil?)
+      seed = SeedGenerator.new()
+      seed.model = "sale"
+      new_receipt_no = seed.next
+      seed.save
+
+    else
+      current_no = seed.next
+      seed.next = seed.next
+      seed.current = current_no
+      seed.save
+    end
+
+    return seed.current
   end
 
   # Generate for 4 digit Code
@@ -68,23 +61,41 @@ class SeedGenerator < ApplicationRecord
     return next_code
   end
 
-  def self.update_seed(model, current, inc)    
-    cur_val = 0
-    next_val = 0
-    nex = current + inc
+  def self.execute_query(model)
+    current = 0
+    nex = 0
+    
+    sql = "INSERT INTO seed_generators (model, created_at, updated_at)      
+            VALUES('#{ model }', NOW(), NOW()) 
+            ON DUPLICATE KEY UPDATE current = current + 1, next = next + 1;"
 
-    update_sql = "update seed_generators set current= #{current}, next= #{nex} where model='#{model}';";
+    select_sql = "select * from seed_generators where model='#{model}';"           
+    ActiveRecord::Base.connection.execute(sql);
+    select_result = ActiveRecord::Base.connection.execute(select_sql);
+    
+    select_result.each do |row|      
+      current = row [3]
+      nex = row[4]
+    end
+
+    return current, nex
+  end
+
+  def self.update_seed(model)   
+    current = 0
+    nex = 0
+
+    update_sql = "UPDATE seed_generators set current = current + 1, next = next + 1 WHERE model='#{model}';"
     select_sql = "select * from seed_generators where model='#{model}';"
     update_result = ActiveRecord::Base.connection.execute(update_sql);
 
     select_result = ActiveRecord::Base.connection.execute(select_sql);
     
     select_result.each do |row|      
-      p row
-      cur_val = row [3]
-      next_val = row[4]
+      current = row [3]
+      nex = row[4]
     end
 
-    return cur_val, next_val
+    return current, nex
   end
 end