Add logout function from user

navigation/navigation.py

@@ -15,6 +15,8 @@ def botNavigation(bot, update):
         user_login(bot, chat_id)
     elif (text == None and contact != None) :
         save_user_data(bot, chat_id, contact)
+    elif (text == "/logout"):
+        user_logout(bot, chat_id)
     else :
         command_not_found(bot, chat_id, msg_id)
     
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telebot/mastermind.py

@@ -33,4 +33,13 @@ def save_user_data(bot, chat_id, contact):
         user.save()
         bot.sendMessage(chat_id=chat_id, text="Register success!!!", reply_markup=ReplyKeyboardRemove())
     else:
-        bot.sendMessage(chat_id=chat_id, text="You have been registered", reply_markup=ReplyKeyboardRemove())
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+        bot.sendMessage(chat_id=chat_id, text="You have been registered", reply_markup=ReplyKeyboardRemove())
+
+def user_logout(bot, chat_id):
+    checkUserExistance = UserModel.query.filter(UserModel.userId==str(chat_id)).first()
+    if (checkUserExistance is None):
+        bot.sendMessage(chat_id=chat_id, text="You are not registerd yet", reply_markup=ReplyKeyboardRemove())
+    else:
+        checkUserExistance = UserModel.query.filter(UserModel.userId==str(chat_id)).first()
+        checkUserExistance.delete()
+        bot.sendMessage(chat_id=chat_id, text="Successfully logged out from bot", reply_markup=ReplyKeyboardRemove())
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