description length validated

smart_service/add_ons/doctype/circular/circular.py

@@ -1,8 +1,10 @@
 # Copyright (c) 2021, Hard n Soft Technologies Pvt Ltd and contributors
 # For license information, please see license.txt
 
-# import frappe
+import frappe
 from frappe.model.document import Document
 
 class Circular(Document):
-	pass
+	def validate(self):
+		if self.description and len(self.description)>850:
+			frappe.throw("Description should be less than or equal to 850 characters                                                              ")