Edit database 400 error: Too many fields. Maximum number of fields is 1000.

[pimverschuuren]

Checklist

• The bug is reproducible against the latest release or master.
• There are no similar issues or pull requests to fix it yet.

Describe the bug

I have an object that I am trying to edit from the admin panel. The model field is a list of enum values for which I want to add one of the values to the list. The annoying thing is that for some objects with the same model I can alter it fine. However, for some objects the admin page shows the message:

I know this is not much to go on but does anyone have any idea what it might be and how I can further my investigation? Please let me know if you need more info

Steps to reproduce the bug

No response

Expected behavior

No response

Actual behavior

No response

Debugging material

No response

Environment

• The code is deployed with FastAPI using Dockerfile to a kubernetes cluster
• The docker base image is python:3.12.3-slim https://hub.docker.com/layers/library/python/3.12.3-slim/images/sha256-a9922d9d812c99034d23bef370270abe95def980c1f2664afac002f3e6a9428e

Additional context

No response

[aminalaee]

Please provide a minimum code to reproduce this and maybe add the traceback here.

[ahmedelgamal0]

The error “Too many fields. Maximum number of fields is 1000.” occurs because the admin panel automatically generates a form for editing database models. If your model has a large number of fields or relationships, this can exceed the default field limit set by the server or framework.

Use form_columns or form_excluded_columns as mentioned in the docs of sqladmin (docs/cookbook/optimize_relationship_loading.md)
https://github.com/aminalaee/sqladmin/blob/main/docs/cookbook/optimize_relationship_loading.md#using-form_columns-or-form_excluded_columns