Upload_to and storage not working in Django 4.1

i have just upgrade my Django from 2.x to 4.x. I had a function that not working correctly. I have been trying so many things but still not able to figure it out. So i need some help

file = models.FileField(
        upload_to=get_file_path,
        storage=AbsolutePathStorage(),
        max_length=500,
    )

from django.core.files.storage import FileSystemStorage


class AbsolutePathStorage(FileSystemStorage):
    """Storage that allows storing files given absolute paths."""

    def path(self, name: str) -> str:
        """Override path validation to allow absolute paths."""
        # Return name if it's a absolute path.
        if name.startswith("/"):
            return name

        # Return regular joined path if this is a relative path.
        return super().path(name)

So before upgrading Django, the file is uploaded to the upload_to folder ( outside of MEDIA_ROOT). Everything is working fine. But after i upgraded Django to 4.1. Its not working anymore and complaining about:

The joined path (upload_to) is located outside of the base path component (MEDIA_ROOT ).

Any idea ?

Thank you.

You call super().path() in your function, which is where this error is raised.

class AbsolutePathStorage(FileSystemStorage):
    ...

class FileSystemStorage:
    def path(self, name):
        return safe_join(self.location, name) # safe_join raises the error

If your upload_to function returns an absolute path, then it looks like you can just use the name as-is and no logic is need in the name() function. The assert here is just a sanity check.

class AbsolutePathStorage(FileSystemStorage):
    def path(self, name: str) -> str:
        assert name.startswith("/"), f"Path was not absolute: {name}"
        return name
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