add new api

app/models/batch_line_item.rb

@@ -20,7 +20,7 @@ class BatchLineItem < ApplicationRecord
 		return account_no 
   	end
 
-  	def self.generate_serial_no(user_id)
+  	def self.generate_serial_no(client_id)
 	    find_lookup=Lookup.find_by_name('generate_serial_no')
 	    if !find_lookup.nil?
 	    	max_value=find_lookup.max_value
@@ -34,10 +34,11 @@ class BatchLineItem < ApplicationRecord
 	    	ends=sufix_len-value_len-1
 	    	sufix_str= sufix_str[start..ends]
 	    	prefix=prefix[start..2]
-	    	prefix_str=prefix.to_s + user_id.to_s
+	    	prefix_str=prefix.to_s + client_id.to_s
 
 	    	serial_no=prefix_str.to_s+sufix_str+max_value.to_s	    	
-	    	return serial_no	   
+	    	return serial_no	
+  
 	    end
 	end
 	def self.to_csv(user_id)