我有两个 django 应用程序:“home”和“user_profile”。我对“user_profile”应用程序进行了更改,我想为它进行迁移,所以我写了
manage.py makemigrations user_profile
我得到了这个错误:
File "D:\example\project\home\forms.py", line 31, in <module>
class AddNewUserProfileForm(forms.ModelForm):
File "D:\example\lib\site-packages\django\forms\models.py",
line 257, in __new__
raise FieldError(message)
django.core.exceptions.FieldError: Unknown field(s) (birthday) specified for User
好的,我所做的更改与我之前编写的代码冲突,因此引发了此异常。但是,如果我从中删除“家庭”应用程序INSTALLED_APPS
- 错误不会消失,即使现在“家庭”根本不应该被视为项目的一部分(如果我理解正确的话)。
所以我有几个问题:
如何在不重构所有其他代码的情况下为 user_profile 进行迁移?例如,我只想看看它将如何在数据库中呈现,我不关心来自其他应用程序的视图和表单。
是否有可能在一切完成后进行迁移和迁移并处理此类错误?对我来说,在执行期间处理它们似乎比在 makemigration 阶段更容易处理。
当然,我知道处理它的一种简单快速的方法就是重写所有冲突的东西,但这会花费很多时间,而且我现在并不真正关心大多数东西,我想留到以后。
我使用 Django 1.9.1
user_profile.models
from __future__ import unicode_literals
from django.db import models
from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin, BaseUserManager
from django.core.validators import RegexValidator
from django.utils.translation import ugettext_lazy as _
from django.utils import timezone
class MyUserManager(BaseUserManager):
def create_user(self, phone_number, password=None):
if not phone_number:
raise ValueError('Users must have a phone number')
user = self.model(
phone_number=phone_number,
)
user.set_password(password)
user.save(using=self._db)
return user
def create_superuser(self, phone_number, password):
user = self.create_user(phone_number,
password=password,
)
user.is_staff = True
user.is_superuser = True
user.save(using=self._db)
return user
class User(AbstractBaseUser, PermissionsMixin):
phone_regex = RegexValidator(regex=r'^\+?1?\d{9,15}$', message="Phone number must be entered in the format: '+999999999'. Up to 15 digits allowed.")
phone_number = models.CharField(validators=[phone_regex], blank=True, max_length=15, unique=True) # validators should be a list
is_active = models.BooleanField(
_('active'),
default=True,
help_text=_(
'Designates whether this user should be treated as active. '
'Unselect this instead of deleting accounts.'
),
)
is_staff = models.BooleanField(
_('staff status'),
default=False,
help_text=_('Designates whether the user can log into this admin site.'),
)
date_of_birth = models.DateTimeField(blank=True, null=True)
date_joined = models.DateTimeField(_('date joined'), default=timezone.now)
first_name = models.CharField(_('first name'), max_length=30, blank=True)
last_name = models.CharField(_('last name'), max_length=30, blank=True)
email = models.EmailField(_('email address'), blank=True)
USERNAME_FIELD = 'phone_number'
REQUIRED_FIELDS = []
objects = MyUserManager()
def get_full_name(self):
fullname = self.first_name+" "+self.last_name
return self.fullname
def get_short_name(self):
return self.first_name
def age(self):
import datetime
return int((datetime.date.today() - self.date_of_birth).days / 365.25 )
def __unicode__(self):
return self.first_name + ' ' + self.last_name