ojuso-map/apps/files/models.py

from django.contrib.auth.models import User
from django.db import models

from apps.map.models import CaseStudy, CaseStudyDraft


class BaseFile(models.Model):
    file = models.FileField(
        upload_to='.',
    )
    user = models.ForeignKey(
        User, related_name='files'
    )

    class Meta:
        abstract = True

    def __str__(self):
        return self.file.name


class File(BaseFile):
    pass