Im trying to migrate my django model:
from django.contrib.auth.models import User
class Post(models.Model):
headline = models.CharField(max_length=200)
slug = models.SlugField(max_length=200)
body = models.TextField(blank=True, null=True)
author = models.ForeignKey(User, null=True, blank=True)
I added the author field after I created the model.
Here is the migration django creates:
# encoding: utf8
from django.db import models, migrations
class Migration(migrations.Migration):
dependencies = [('articles', '0002_auto')]
operations = [
migrations.AddField(
field = models.ForeignKey(to_field=u'id', to=u'auth.User',
blank=True, null=True),
name = 'author',
model_name = 'post',
),
]
Here is my traceback when I try to run ./manage.py migrate:
Operations to perform:
Synchronize unmigrated apps: ckeditor, sessions, admin, messages, auth,
staticfiles, contenttypes, django_extensions
Apply all migrations: articles
Synchronizing apps without migrations:
Creating tables...
Installing custom SQL...
Installing indexes...
Installed 0 object(s) from 0 fixture(s)
Running migrations:
Applying articles.0002_post_author...Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/core/management/__init__.py",
line 397, in execute_from_command_line
utility.execute()
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/core/management/__init__.py",
line 390, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/core/management/base.py",
line 242, in run_from_argv
self.execute(*args, **options.__dict__)
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/core/management/base.py",
line 289, in execute
output = self.handle(*args, **options)
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/core/management/commands/migrate.py",
line 116, in handle
executor.migrate(targets, plan, fake=options.get("fake", False))
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/db/migrations/executor.py",
line 60, in migrate
self.apply_migration(migration, fake=fake)
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/db/migrations/executor.py",
line 73, in apply_migration
migration.apply(project_state, schema_editor)
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/db/migrations/migration.py",
line 80, in apply
operation.database_forwards(self.app_label, schema_editor,
project_state, new_state)
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/db/migrations/operations/fields.py",
line 22, in database_forwards
schema_editor.add_field(from_model,
to_model._meta.get_field_by_name(self.name)[0])
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/db/backends/schema.py",
line 349, in add_field
definition, params = self.column_sql(model, field, include_default=True)
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/db/backends/schema.py",
line 105, in column_sql
db_params = field.db_parameters(connection=self.connection)
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/db/models/fields/related.py",
line 1285, in db_parameters
return {"type": self.db_type(connection), "check": []}
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/db/models/fields/related.py",
line 1276, in db_type
rel_field = self.related_field
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/db/models/fields/related.py",
line 1183, in related_field
return self.foreign_related_fields[0]
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/db/models/fields/related.py",
line 971, in foreign_related_fields
return tuple(rhs_field for lhs_field, rhs_field in self.related_fields)
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/db/models/fields/related.py",
line 958, in related_fields
self._related_fields = self.resolve_related_fields()
File
"/home/USER/.virtualenvs/PROJECT/src/django-trunk/django/db/models/fields/related.py",
line 943, in resolve_related_fields
raise ValueError('Related model %r cannot been resolved' % self.rel.to)
ValueError: Related model u'auth.User' cannot been resolved
Anyone know what I'm doing wrong? Or is this a bug? (Using
1.7.dev20130903182221)
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