Does not increment power ports amount when power supply module inserted with CLI script call Module.objects.create()

[ychtch]

NetBox Edition

NetBox Community

NetBox Version

v4.5.3

Python Version

3.12

Steps to Reproduce

1. Make call Module.objects.create() to insert power module equiped with power ports

Expected Behavior

1. Correct numbers of power ports added

Observed Behavior

Using GUI is OK and it decrements power ports number when deleting module.

[github-actions]

Thanks for the report!

Before a maintainer can dig in, there are a couple of things that would help move this forward:

1. Out-of-date version
The issue was filed against v4.5.3, but the current stable release is v4.6.2 (and the v4.5.x line is at v4.5.10). Could you please try to reproduce the problem on the latest release and update the issue with your findings? It is possible the behavior has already been addressed.

2. Reproduction steps need more detail
The bug report template asks for detailed, step-by-step instructions that someone else could follow to reproduce the issue from scratch. The current steps are too brief — please include the actual Python code you are running (the full Module.objects.create() call with all arguments), the module type and template being used, the device/device type involved, and any other relevant context. Without this, it is very difficult for a maintainer to reproduce the problem reliably.

Please edit the issue to address both points above so a maintainer can pick this up efficiently.

---

I am an automated triage assistant. A human maintainer will follow up.

[pheus]

Thanks for raising this!

In this case, the behavior is expected when creating objects directly through Django's ORM with Module.objects.create(). That shortcut bypasses the validation flow NetBox relies on, and using it can result in inconsistent or invalid data like what you're seeing here.

When creating or updating NetBox objects from nbshell, Custom Scripts, or other direct ORM usage, please instantiate the object, call full_clean(), and then call save():

module = Module(
    # fields here
)
module.full_clean()
module.save()

The Custom Scripts documentation covers this here:

https://github.com/netbox-community/netbox/blob/main/docs/customization/custom-scripts.md#model-validation

I'm going to close this as invalid since creating objects without running validation is not a supported workflow, but thanks again for taking the time to report it.

[ychtch]

One question. When you run next code

device = Device.objects.get(name='TestDevice')
interface = Interface.objects.get(name="eth0", device=device)
interface.description = "New description"
interface.full_clean()
interface.save()

you will get next message in Change Log

Pre-Change Data
Warning: Comparing non-atomic change to previous change record

Is this OK or something wrong?

[jeremystretch]

@ychtch please consider starting a discussion if you need assistance writing custom scripts. We try to keep issues limited to the scope of the relevant changes.