stacklens
commented
4 years ago 旧评论区读者提问集中贴：
注意下面这个非常多人遇到的问题！
Q：报告一个错误：
非教程错误，是Django的bug，在Django2.1 版本下迁移数据表，然后在Django控制台添加数据会出现 django.db.utils.OperationalError: no such table: main.auth_user__old 的错误。
解决办法： 将sqlite中除system catalogue下的所有表全删掉，然后安装Django2.1.5，重新迁移数据，运行。
A：这个错误确实是由于 django 2.1 和 splite 版本兼容性引起的，换一个 Django 版本即可。感谢您的评论，给其他人提个醒
Q：后台添加文章后不显示标题名，只显示 ArticlePost object 。
A：model里没写 str() 方法。
Q：博主，继之前数据同步的错误后，继续走还是一堆bug，是因为代码没完善的原因吗？
(env) D:\django_project\my_blog>python manage.py createsuperuser
Traceback (most recent call last):
File "manage.py", line 15, in <module>
execute_from_command_line(sys.argv)
File "D:\django_project\env\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
utility.execute()
File "D:\django_project\env\lib\site-packages\django\core\management\__init__.py", line 357, in execute
django.setup()
File "D:\django_project\env\lib\site-packages\django\__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "D:\django_project\env\lib\site-packages\django\apps\registry.py", line 112, in populate
app_config.import_models()
File "D:\django_project\env\lib\site-packages\django\apps\config.py", line 198, in import_models
self.models_module = import_module(models_module_name)
File "C:\Users\jiaxin\AppData\Local\Programs\Python\Python36\lib\importlib\__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 978, in _gcd_import
File "<frozen importlib._bootstrap>", line 961, in _find_and_load
File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 655, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed
File "D:\django_project\my_blog\article\models.py", line 5, in <module>
class ArticlePost(models.Model):
File "D:\django_project\my_blog\article\models.py", line 6, in ArticlePost
author = models.Foreignkey(User, on_delete=models.CASCADE)
AttributeError: module 'django.db.models' has no attribute 'Foreignkey'A：是 ForeignKey
不是 Foreignkey
Lykisun
hi-nikola
KSroido
https://www.dusaiphoto.com/article/15/