From 3b0ec48b0cd8e8cb2be4694b13f29f22063b4585 Mon Sep 17 00:00:00 2001
From: Suraj Shetty <13928957+surajshetty3416@users.noreply.github.com>
Date: Thu, 12 Sep 2019 19:18:44 +0530
Subject: [PATCH] fix: Naming series check to avoid duplicate entry error
 (#19015)

* fix: Naming series check to avoid duplicate key error

* fix: Check for existence of naming series
---
 erpnext/setup/doctype/naming_series/naming_series.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/erpnext/setup/doctype/naming_series/naming_series.py b/erpnext/setup/doctype/naming_series/naming_series.py
index cb7ad38014..b2cffbbf0d 100644
--- a/erpnext/setup/doctype/naming_series/naming_series.py
+++ b/erpnext/setup/doctype/naming_series/naming_series.py
@@ -151,7 +151,7 @@ class NamingSeries(Document):
 
 	def insert_series(self, series):
 		"""insert series if missing"""
-		if not frappe.db.get_value('Series', series, 'name', order_by="name"):
+		if frappe.db.get_value('Series', series, 'name', order_by="name") == None:
 			frappe.db.sql("insert into tabSeries (name, current) values (%s, 0)", (series))
 
 	def update_series_start(self):