django - AttributeError: type object 'file' has no attribute 'set_user'

Question

I have created a model named file. It was running well, then I created an element inside the class named set_user which gave an error. So, I removed it. But, I think it's not deleted my my database as I am getting this error while trying to migrate:

Traceback (most recent call last): File "manage.py", line 10, in execute_from_command_line(sys.argv) File "/usr/lib/python3/dist-packages/django/core/management/init.py", line 363, in execute_from_command_line utility.execute() File "/usr/lib/python3/dist-packages/django/core/management/init.py", line 355, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/usr/lib/python3/dist-packages/django/core/management/base.py", line 283, in run_from_argv self.execute(*args, **cmd_options) File "/usr/lib/python3/dist-packages/django/core/management/base.py", line 330, in execute output = self.handle(*args, **options) File "/usr/lib/python3/dist-packages/django/core/management/commands/makemigrations.py", line 96, in handle loader = MigrationLoader(None, ignore_no_migrations=True) File "/usr/lib/python3/dist-packages/django/db/migrations/loader.py", line 52, in init self.build_graph() File "/usr/lib/python3/dist-packages/django/db/migrations/loader.py", line 203, in build_graph self.load_disk() File "/usr/lib/python3/dist-packages/django/db/migrations/loader.py", line 114, in load_disk migration_module = import_module("%s.%s" % (module_name, migration_name)) File "/usr/lib/python3.6/importlib/init.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "", line 994, in _gcd_import File "", line 971, in _find_and_load File "", line 955, in _find_and_load_unlocked File "", line 665, in _load_unlocked
File "", line 678, in exec_module File "", line 219, in _call_with_frames_removed File "/home/hashir/website/one/migrations/0017_auto_20171222_2108.py", line 11, in class Migration(migrations.Migration): File "/home/hashir/website/one/migrations/0017_auto_20171222_2108.py", line 21, in Migration field=models.ForeignKey(default=one.models.file.set_user, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL), AttributeError: type object 'file' has no attribute 'set_user'

Here's models.py:

from django.db import models
from django.core.urlresolvers import reverse
from django.contrib.auth.models import User

class file(models.Model):
    title = models.CharField(max_length=250)
    FILE_TYPE_CHOICES = (
        ('audio','Audio'),
        ('games','Games'),
        ('videos','Videos'),
        ('applications','Applications'),
        ('books','Books/Docs'),
        ('others','Others')
        )
    file_type = models.CharField(max_length=12,choices=FILE_TYPE_CHOICES,default='others')
    description = models.TextField(max_length=6000)

    def get_absolute_url(self):
        return reverse('one:user')

    def __str__(self):
        return self.title

You haven't included enough information. Please show the full traceback. — Alasdair
Mind the case of your class python.org/dev/peps/pep-0008/#class-names File instead of file. — schrodigerscatcuriosity

Hashir Sarwar Hashir Sarwar · Accepted Answer · 2017-12-22T23:03:23

Just delete migrations folder from the project and apply the migrations again. Then run these 3 commands:

python manage.py migrate yourapp zero
python manage.py makemigrations yourapp
python manage.py migrate yourapp

django - AttributeError: type object 'file' has no attribute 'set_user'

1 Answers