我在app main中创建自定义用户模型，并使用相同的admin和python social auth。 当我运行我的第一次迁移时，一切运行良好，但是如果我再次尝试运行manage.py migrate，则会抛出应用程序无法找到用户模型。
我已配置： 1.在settings.py中安装了应用程序 2.在AUTH_USER_MODEL和SOCIAL_AUTH_USER_MODEL中设置用户模型
以下是我的代码： 主/模型
from django.db import models
# Create your models here.
from django.contrib.auth.models import AbstractBaseUser,BaseUserManager,PermissionsMixin
from django.utils import timezone
from django.core import validators
from django.utils.translation import ugettext_lazy as _
from django.conf import settings
class CustomUserManager(BaseUserManager):
def _create_user(self, email,username, password,
is_staff, is_superuser, **extra_fields):
"""
Creates and saves a User with the given username, email and password.
"""
now = timezone.now()
if not email:
raise ValueError('The given username must be set')
email = self.normalize_email(email)
user = self.model(email=email,username=username,
is_staff=is_staff, is_active=True,
is_superuser=is_superuser, last_login=now,
date_joined=now, **extra_fields)
user.set_password(password)
user.save(using=self._db)
return user
def create_user(self, username, email=None, password=None, **extra_fields):
now = timezone.now()
if not email:
raise ValueError('The given username must be set')
email = self.normalize_email(email)
user = self.model(email=email,username=username,
is_staff=False, is_active=True,
is_superuser=False, last_login=now,
date_joined=now, **extra_fields)
user.set_password(password)
user.save(using=self._db)
return user
def create_superuser(self, username, email, password=None, **extra_fields):
now = timezone.now()
if not email:
raise ValueError('The given username must be set')
email = self.normalize_email(email)
user = self.model(email=email,username=username,
is_staff=True, is_active=True,
is_superuser=True, last_login=now,
date_joined=now, **extra_fields)
user.set_password(password)
user.save(using=self._db)
return user
class Meta:
app_label = 'main'
class myuser(AbstractBaseUser,PermissionsMixin):
GENDERS = (
('male', 'Male'),
('female', 'Female')
)
VISIBLE = (
('public', 'public'),
('private', 'private')
)
username = models.CharField(_('username'), max_length=30, unique=True,help_text=_('Required. 30 characters or fewer. Letters, digits and '
'@/./+/-/_ only.'),
validators=[
validators.RegexValidator(r'^[\w.@+-]+$', _('Enter a valid username.'), 'invalid')
])
first_name = models.CharField(max_length=30, blank=True)
last_name = models.CharField(max_length=30, blank=True)
email = models.EmailField(blank=True)
is_staff = models.BooleanField(default=False)
is_active = models.BooleanField(_('active'), default=True)
date_joined = models.DateTimeField(default=timezone.now)
gender = models.CharField(max_length=20, null=True, blank=True,
choices=GENDERS)
visibility = models.CharField(max_length=20, null=True, blank=True,
choices=VISIBLE,default='public')
birthday = models.DateField(default=timezone.now)
facebook_id = models.CharField(max_length=30, blank=True)
city = models.CharField(max_length=250, null=True, blank=True)
dob = models.DateField(blank=True, null=True)
locale = models.CharField(max_length=10, blank=True, null=True)
height = models.IntegerField(blank=True,null=True)
weight = models.IntegerField(blank=True,null=True)
profile_photo = models.ImageField(upload_to=settings.STATIC_ROOT+'profiles/',null=True)
USERNAME_FIELD = 'username'
REQUIRED_FIELDS = ['email']
objects = CustomUserManager()
def __unicode__(self):
return self.username
def save(self, *args, **kwargs):
""" ensure instance has usable password when created """
if not self.pk and self.has_usable_password() is False:
self.set_password(self.password)
super(myuser, self).save(*args, **kwargs)
def get_gender(self):
"Returns the short name for the user."
return self.gender
def get_short_name(self):
"Returns the short name of user"
return self.first_name
def get_profile_photo(self):
"Returns the short name of user"
return self.profile_photo
class Meta:
app_label = 'main'
主/ admins.py
from django.contrib import admin
from django.contrib.auth.admin import UserAdmin
from django.contrib.auth.models import Group
from django.contrib.auth.forms import UserChangeForm,UserChangeForm, UserCreationForm
from main.models import myuser
from django import forms
from django.utils.translation import gettext as _
class MyUserChangeForm(UserChangeForm):
class Meta(UserChangeForm.Meta):
model = myuser
class MyUserCreationForm(UserCreationForm):
class Meta(UserCreationForm.Meta):
model = myuser
def clean_username(self):
username = self.cleaned_data['username']
try:
myuser.objects.get(username=username)
except myuser.DoesNotExist:
return username
raise forms.ValidationError(self.error_messages['duplicate_username'])
class MyUserAdmin(UserAdmin):
form = MyUserChangeForm
add_form = MyUserCreationForm
fieldsets = (
(None, {'fields': ('username', 'password')}),
(_('Personal info'), {'fields': ('first_name', 'last_name', 'email','birthday','gender','city','visibility')}),
(_('Permissions'), {'fields': ('is_active', 'is_staff', 'is_superuser',
'groups', 'user_permissions')}),
(_('Important dates'), {'fields': ('last_login', 'date_joined')}),
)
add_fieldsets = (
(None, {
'classes': ('wide',),
'fields': ('username', 'password1', 'password2')}
),
)
list_display = ('username', 'email', 'first_name', 'last_name', 'is_staff')
list_filter = ('is_staff', 'is_superuser', 'is_active', 'groups')
search_fields = ('username', 'first_name', 'last_name', 'email')
ordering = ('username',)
filter_horizontal = ('groups', 'user_permissions',)
admin.site.register(myuser, MyUserAdmin)
admin.site.unregister(Group)
settings.py
INSTALLED_APPS = (
'grappelli',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'main',
'registration',
'profiles',
'crispy_forms',
'social.apps.django_app.default',
)
AUTHENTICATION_BACKENDS = (
'social.backends.facebook.FacebookOAuth2',
'social.backends.google.GoogleOAuth2',
'social.backends.twitter.TwitterOAuth',
'social.backends.instagram.InstagramOAuth2',
'social.backends.fitbit.FitbitOAuth',
'django.contrib.auth.backends.ModelBackend',
)
AUTH_USER_MODEL = 'main.myuser'
SOCIAL_AUTH_USER_MODEL = 'main.myuser'
错误日志：
# python manage.py migrate
/var/webapp/fit_env/lib/python3.4/site-packages/django/contrib/sites/models.py:78: RemovedInDjango19Warning: Model class django.contrib.sites.models.Site doesn't declare an explicit app_label and either isn't in an application in INSTALLED_APPS or else was imported before its application was loaded. This will no longer be supported in Django 1.9.
class Site(models.Model):
Operations to perform:
Synchronize unmigrated apps: messages, staticfiles, crispy_forms, grappelli
Apply all migrations: sessions, auth, default, registration, contenttypes, main, admin
Synchronizing apps without migrations:
Creating tables...
Running deferred SQL...
Installing custom SQL...
Running migrations:
Rendering model states...Traceback (most recent call last):
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/apps/config.py", line 159, in get_model
return self.models[model_name.lower()]
KeyError: 'user'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/db/migrations/state.py", line 238, in __init__
model = self.get_model(lookup_model[0], lookup_model[1])
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/apps/registry.py", line 202, in get_model
return self.get_app_config(app_label).get_model(model_name.lower())
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/apps/config.py", line 162, in get_model
"App '%s' doesn't have a '%s' model." % (self.label, model_name))
LookupError: App 'main' doesn't have a 'user' model.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/core/management/__init__.py", line 354, in execute_from_command_line
utility.execute()
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/core/management/__init__.py", line 346, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/core/management/base.py", line 394, in run_from_argv
self.execute(*args, **cmd_options)
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/core/management/base.py", line 445, in execute
output = self.handle(*args, **options)
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/core/management/commands/migrate.py", line 222, in handle
executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial)
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/db/migrations/executor.py", line 100, in migrate
state.apps # Render all real_apps -- performance critical
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/utils/functional.py", line 59, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/db/migrations/state.py", line 166, in apps
return StateApps(self.real_apps, self.models)
File "/var/webapp/fit_env/lib/python3.4/site-packages/django/db/migrations/state.py", line 248, in __init__
raise ValueError(msg.format(field=operations[0][1], model=lookup_model))
ValueError: Lookup failed for model referenced by field default.UserSocialAuth.user: main.User
答案 0 :(得分：2)
固定：
不幸的是，这与django设置或迁移无关。
我可能没有选项(--no-site-packages)创建了我的虚拟环境
我认为这就是python-social-auth一直引用默认用户（不知道为什么）的原因。
解决方案：
Removed virtual env.
Created new virtual env. with --no-site-packages
Installed required packages in this env. and voila its working fine now !
答案 1 :(得分：1)
我不确定social-auth，但对于某些auth个应用，他们在INSTALLED_APPS的订单很重要。另外，不要忘记运行python manage.py makemigrations。
INSTALLED_APPS = (
'grappelli',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'social.apps.django_app.default',
'crispy_forms',
'registration',
'profiles',
'main',
)