Finding the correct Model file to modify for postgresQL int4range[] issue on netbox 4.2.6

[telestrialOne]

netbox4.2.6
Greetings all,

If someone has experienced this problem before I would appreciate learning what you did to correct it.
I received the following error message while issuing the Python manage.py migrate command.

django.db.utils.ProgrammingError: column "vid_ranges" is of type int4range[] but default expression is of type text[]
HINT: You will need to rewrite or cast the expression.

I found something that looks like it just might remediate this problem, however I am not sure which file to modify.

To use the int4range type in Django with PostgreSQL, you typically need to modify your model file where you define your Django models. You can use the IntegerRangeField from django.contrib.postgres.fields to create a field that utilizes the int4range type.
netbox4.2.6

#################################################
from django.db.models import CharField
from django.db.models.functions import Cast
from netbox.models import netbox # Replace myapp and MyModel

netbox.objects.annotate(
range_text=Cast('my_int4range_field', CharField())
).values('range_text')
##################################################
After a couple of days of agonizing and researching I chose this guy to be the victim:
/opt/netbox/netbox/extras/models/models.py

[pheus]

Hi there, I’m having a bit of a hard time understanding the exact nature of your request. Are you looking for help with learning Django in general, or are you running into a specific NetBox issue?

From what I can tell, it looks like you may have upgraded NetBox without fully following the official upgrade guide. As a result, your database schema might now be in an unsupported state — and it seems like you’re trying to work around that by modifying the NetBox source code directly.

I’d strongly recommend reverting any custom code changes and instead focusing on getting the database schema aligned properly by following the documented upgrade steps. This will save you a lot of trouble in the long run and ensure your instance stays maintainable.

You can find the upgrade guide here:
https://netboxlabs.com/docs/netbox/en/stable/installation/upgrading/

[telestrialOne]

Thank you so much for your interest and reply pheus. I was merely trying to do an initial install on Ubuntu 24.04 and I had to install approximately twenty pip packages before the installation would proceed. After it appeared that I had satisfied the final package, something like strawberry, it was time to issue the python manage.py migrate command. I issued the command and I received the following message.

django.db.utils.ProgrammingError: column "vid_ranges" is of type int4range[] but default expression is of type text[]
HINT: You will need to rewrite or cast the expression.

issuing the command python manage.py createsuperuser produces the following message.

/.venv/lib/python3.12/site-packages/redis/connection.py", line 363, in connect
raise ConnectionError(self._error_message(e))
redis.exceptions.ConnectionError: Error 111 connecting to localhost:6379. Connection refused.

I am going to purge what I have now and try a new install. Thanks for any and all support.

[pheus]

It sounds like you might not be following the official NetBox installation guidelines.

There’s typically no need to manually run python manage.py migrate — this is handled automatically by the upgrade.sh script provided by NetBox. This script also sets up the virtual environment and installs all required Python packages for you.

I’d really recommend following the official installation documentation closely:

https://netboxlabs.com/docs/netbox/en/stable/installation/

This should help avoid many of the issues you’re running into.

If you’re starting fresh, that’s a good idea — but definitely try to stick to the documented process to save yourself a lot of frustration.

[telestrialOne]

Thanks pheus,

Thanks for the link I will gladly follow your prompt and kind advice. Cheers!

[telestrialOne]

For anyone that may experience this problem, I re-read the installation guide and followed it as written. I had a successful install but I still had to make modifications not mentioned in the installation guide.
I had to install both the postgresql and redis database applications, modify the ufw to allow port 5432, change the user name in configuration.py for the postgres db to postgres:postgres because there was no database named netbox in the posgresql database server I installed from scratch. I could have created a database named netbox in postgresql, but I was tired of flutzing with this thing. -hth