AttributeError: 'Model' object has no attribute '__pydantic_extra__' during validate assignment

[trazola]

First Check

• I added a very descriptive title here.
• I used the GitHub search to find a similar question and didn't find it.
• I searched the SQLModel documentation, with the integrated search.
• I already searched in Google "How to X in SQLModel" and didn't find any information.
• I already read and followed all the tutorial in the docs and didn't find an answer.
• I already checked if it is not related to SQLModel but to Pydantic.
• I already checked if it is not related to SQLModel but to SQLAlchemy.

Commit to Help

• I commit to help with one of those options 👆

Example Code

from sqlmodel import SQLModel, Field
from pydantic import ConfigDict


class Example(SQLModel, table=True):
    id: int = Field(primary_key=True)
    model_config = ConfigDict(validate_assignment=True)


test = Example(id=1)
test.id = "1"

Description

I have this error below:

Operating System

macOS

Operating System Details

No response

SQLModel Version

0.0.14

Python Version

3.11

Additional Context

No response

[jplhanna]

I had this issue recently as well, it stopped happening when I dropped the validate_assignment=True from the config. Seems like it doesn't play well with how sqlmodel initializes the object.