我想从django随附的数据库中删除用户，我使用我的超级用户进入管理站点，但是当我尝试手动删除任何用户（出于测试目的而创建的用户时，它给出上述错误y，下面插入的回溯是日志中的回溯。
Traceback (most recent call last):
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/db/backends/base/base.py", line 240, in _commit
return self.connection.commit()
sqlite3.IntegrityError: FOREIGN KEY constraint failed
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/core/handlers/exception.py", line 34, in inner
response = get_response(request)
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/core/handlers/base.py", line 115, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/core/handlers/base.py", line 113, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/contrib/admin/options.py", line 606, in wrapper
return self.admin_site.admin_view(view)(*args, **kwargs)
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/utils/decorators.py", line 142, in _wrapped_view
response = view_func(request, *args, **kwargs)
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/views/decorators/cache.py", line 44, in _wrapped_view_func
response = view_func(request, *args, **kwargs)
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/contrib/admin/sites.py", line 223, in inner
return view(request, *args, **kwargs)
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/utils/decorators.py", line 45, in _wrapper
return bound_method(*args, **kwargs)
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/utils/decorators.py", line 142, in _wrapped_view
response = view_func(request, *args, **kwargs)
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/contrib/admin/options.py", line 1727, in changelist_view
response = self.response_action(request, queryset=cl.get_queryset(request))
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/contrib/admin/options.py", line 1397, in response_action
response = func(self, request, queryset)
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/contrib/admin/actions.py", line 40, in delete_selected
modeladmin.delete_queryset(request, queryset)
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/contrib/admin/options.py", line 1098, in delete_queryset
queryset.delete()
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/db/models/query.py", line 711, in delete
deleted, _rows_count = collector.delete()
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/db/models/deletion.py", line 318, in delete
sender=model, instance=obj, using=self.using
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/db/transaction.py", line 240, in __exit__
connection.commit()
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/db/backends/base/base.py", line 262, in commit
self._commit()
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/db/backends/base/base.py", line 240, in _commit
return self.connection.commit()
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/Users/lralcocer/PycharmProjects/MediTracker/venv/lib/python3.5/site-packages/django/db/backends/base/base.py", line 240, in _commit
return self.connection.commit()
django.db.utils.IntegrityError: FOREIGN KEY constraint failed
[06/May/2020 02:47:33] "POST /admin/auth/user/ HTTP/1.1" 500 142907
from django.db import models
from django.contrib.auth.models import User
# Create your models here.
class UserRegister(models.Model):
user = models.OneToOneField(User,on_delete=models.CASCADE)
first_name = models.CharField(max_length=256, default='', blank=False,)
last_name = models.CharField(max_length=256, default='', blank=False)
email = models.EmailField(unique=True, blank=False,default='')
def __str__(self):
return self.user.username
from django import forms
from .models import *
from django.contrib.auth.models import User
#Create your forms here!
class UserRegisterForm(forms.ModelForm):
password = forms.CharField(widget=forms.PasswordInput())
class Meta():
model = User
fields = ('username','password')
class UserRegisterInfoForm(forms.ModelForm):
class Meta():
model = UserRegister
fields = ('first_name','last_name','email')
def UserRegisterFormView(request):
registered = False
if request.method == 'POST':
userform = UserRegisterForm(data=request.POST)
userinfoform = UserRegisterInfoForm(data=request.POST)
if userform.is_valid() and userinfoform.is_valid():
user = userform.save()
user.set_password(user.password)
user.save()
profile = userinfoform.save(commit=False)
profile.user = user
profile.save()
registered = True
else:
print(userform.errors, userinfoform.errors)
else:
userform = UserRegisterForm
userinfoform = UserRegisterInfoForm
return render(request,'register/register.html'{'userform':userform,'userinfoform':userinfoform,'registered':registered})
您可以删除除init.py文件之外的数据库。然后运行makemigrations并再次迁移命令。
如果无法解决，请将该文件夹中的所有文件复制到另一个文件夹，删除该文件夹，在您的项目目录中创建一个新文件夹，然后将所有内容粘贴回（请注意urls.py，不要别忘了更改它们）。然后运行makemigrations并迁移命令。