报错信息如下:
(blog) λ python manage.py makemigrations
Traceback (most recent call last):
File "manage.py", line 15, in <module>
execute_from_command_line(sys.argv)
File "D:\python-workspace\TEST\my_env\blog\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
utility.execute()
File "D:\python-workspace\TEST\my_env\blog\lib\site-packages\django\core\management\__init__.py", line 357, in execute
django.setup()
File "D:\python-workspace\TEST\my_env\blog\lib\site-packages\django\__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "D:\python-workspace\TEST\my_env\blog\lib\site-packages\django\apps\registry.py", line 112, in populate
app_config.import_models()
File "D:\python-workspace\TEST\my_env\blog\lib\site-packages\django\apps\config.py", line 198, in import_models
self.models_module = import_module(models_module_name)
File "D:\python-workspace\TEST\my_env\blog\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "D:\python-workspace\TEST\my_env\blog\workspace\mysite\blog\models.py", line 7, in <module>
class BlogArticles(models.Model):
File "D:\python-workspace\TEST\my_env\blog\workspace\mysite\blog\models.py", line 9, in BlogArticles
author = models.ForeignKey(User, related_name="blog_posts")
TypeError: __init__() missing 1 required positional argument: 'on_delete'
主要信息为:
BlogArticles
author = models.ForeignKey(User, related_name="blog_posts")
TypeError: __init__() missing 1 required positional argument: 'on_delete'
解决方法:在author定义的内容中添加一行内容
on_delete=models.CASCADE
再次执行python manage.py makemigrations命令即可正常运行