python - Circular Dependency Error in Django -
having issue when running makemigrations/migrate django project.
getting error:
traceback (most recent call last): file "manage.py", line 10, in <module> execute_from_command_line(sys.argv) file "c:\users\crstu\appdata\local\programs\python\python36-32\lib\site-packages\django\core\management\__init__.py", line 353, in execute_from_command_line utility.execute() file "c:\users\crstu\appdata\local\programs\python\python36-32\lib\site-packages\django\core\management\__init__.py", line 345, in execute self.fetch_command(subcommand).run_from_argv(self.argv) file "c:\users\crstu\appdata\local\programs\python\python36-32\lib\site-packages\django\core\management\base.py", line 348, in run_from_argv self.execute(*args, **cmd_options) file "c:\users\crstu\appdata\local\programs\python\python36-32\lib\site-packages\django\core\management\base.py", line 399, in execute output = self.handle(*args, **options) file "c:\users\crstu\appdata\local\programs\python\python36-32\lib\site-packages\django\core\management\commands\migrate.py", line 139, in handle plan = executor.migration_plan(targets) file "c:\users\crstu\appdata\local\programs\python\python36-32\lib\site-packages\django\db\migrations\executor.py", line 60, in migration_plan migration in self.loader.graph.forwards_plan(target): file "c:\users\crstu\appdata\local\programs\python\python36-32\lib\site-packages\django\db\migrations\graph.py", line 149, in forwards_plan self.ensure_not_cyclic(target, lambda x: (parent.key parent in self.node_map[x].parents)) file "c:\users\crstu\appdata\local\programs\python\python36-32\lib\site-packages\django\db\migrations\graph.py", line 241, in ensure_not_cyclic raise circulardependencyerror(", ".join("%s.%s" % n n in cycle)) django.db.migrations.exceptions.circulardependencyerror: accounts.0001_initial, projects.0001_initial i have 2 apps---one called accounts , called projects
for accounts app, here model:
from django.contrib.auth.models import ( abstractbaseuser, baseusermanager, permissionsmixin ) django.db import models django.utils import timezone django.conf import settings django.db.models.signals import post_save import os projects.models import skill, project def avatar_upload_path(instance, filename): return os.path.join('avatars', 'user_{0}', '{1}').format( instance.user.id, filename) class usermanager(baseusermanager): def create_user(self, email, username=none, password=none): if not email: raise valueerror("users must have email address") if not username: username = email.split('@')[0] user = self.model( email=self.normalize_email(email), username=username, ) user.set_password(password) user.save() return user def create_superuser(self, email, username, password): user = self.create_user( email, username, password, ) user.is_staff = true user.is_superuser = true user.save() return user class user(abstractbaseuser, permissionsmixin): email = models.emailfield(unique=true) username = models.charfield(max_length=40, unique=true, default='') date_joined = models.datetimefield(default=timezone.now) is_active = models.booleanfield(default=true) is_staff = models.booleanfield(default=false) objects = usermanager() username_field = 'email' required_fields = ['username'] def __str__(self): return "@{}".format(self.username) def get_short_name(self): return self.username def get_long_name(self): return "@{} ({})".format(self.username, self.email) class userprofile(models.model): user = models.onetoonefield(settings.auth_user_model) first_name = models.charfield(max_length=40, default='', blank=true) last_name = models.charfield(max_length=40, default='', blank=true) bio = models.textfield(blank=true, default='') avatar = models.imagefield('avatar picture', upload_to=avatar_upload_path, null=true, blank=true) skills = models.manytomanyfield(skill) def __str__(self): return self.user.username @property def get_avatar_url(self): if self.avatar: return '/media/{}'.format(self.avatar) return 'http://www.gravatar.com/avatar/{}?s=128&d=identicon'.format( '94d093eda664addd6e450d7e9881bcad' ) def create_profile(sender, **kwargs): if kwargs['created']: user_profile = userprofile.objects.create(user=kwargs['instance']) post_save.connect(create_profile, sender=user) and projects app here model. thought maybe since using many many field userprofile skill class in app maybe issue...so tried run makemigrations separately on 2 apps---while commenting out 'skill' userprofile. didn't work. not sure now.
from django.conf import settings django.db import models django.core.urlresolvers import reverse class skill(models.model): """user skills class.""" android = 1 designer = 2 java = 3 php = 4 python = 5 rails = 6 wordpress = 7 ios = 8 skill_choices = ( (str(android), 'android developer'), (str(designer), 'designer'), (str(java), 'java developer'), (str(php), 'php developer'), (str(python), 'python developer'), (str(rails), 'rails developer'), (str(wordpress), 'wordpress developer'), (str(ios), 'ios developer') ) name = models.charfield(max_length=140, choices=skill_choices, default='unknown') def __str__(self): return self.get_name_display() class project(models.model): owner = models.foreignkey(settings.auth_user_model, related_name='project', null=true) created_at = models.datetimefield(auto_now_add=true) title = models.charfield(max_length=255) description = models.textfield() requirements = models.textfield(default='') timeline = models.charfield(max_length=255, blank=true) complete = models.booleanfield(default=false) @property def open_positions(self): return self.positions.exclude(filled=true) def __str__(self): return self.title.title() def get_absolute_url(self): return reverse("projects:project_detail", kwargs={"pk": self.pk}) class position(models.model): project = models.foreignkey(project, default='',related_name='positions') name = models.charfield(max_length=140) description = models.textfield() skill = models.foreignkey(skill, default='', null=true) filled = models.booleanfield(default=false) def __str__(self): return '{} - {}'.format(self.project.title.title(), self.name.title())
your 2 migrations have dependency on each other. @ generated migration account app , see this
class migration(migrations.migration): dependencies = [ ('projects', '0001_initial'), ] there similar in projects migration
you need delete these 2 migration files , run makemigrations again without specifying app name
Comments
Post a Comment