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在使用我的Django项目运行makemigrations/migrate时遇到问题。Django中的循环依赖错误
收到此错误：
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
for 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 for 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 for n in cycle))
django.db.migrations.exceptions.CircularDependencyError: accounts.0001_initial, projects.0001_initial
我有两个应用程序---一个叫帐户和另一个名为项目
我的帐户的应用程序，这里是模型：
from django.contrib.auth.models import (
AbstractBaseUser,
BaseUserManager,
PermissionsMixin
)
from django.db import models
from django.utils import timezone
from django.conf import settings
from django.db.models.signals import post_save
import os
from 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 an 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)
并为我的项目应用程序在这里是模型。我想这也许是因为我在另一个应用程序中使用了从UserProfile到Skill类的多对多字段，所以我试图在两个应用程序上单独运行makemigrations ---在评论'技能'来自UserProfile。没有工作。所以不知道现在该做什么。
from django.conf import settings
from django.db import models
from 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())
您是否在帐户应用程序模型中导入了技能模型？ – Exprator
添加完整models.py代码与导入顶部的文件，并添加完整的回溯错误 –
嗨加入所有进口---和是的，我没有进口技巧模型 –