Django models 为什么我看到TypeError:uuu init_uuuuuuuuuuuuu（）缺少1个必需的位置参数：'；删除'；即使我在删除上使用了错误？
我正在django上一门课程，这是models.py代码：Django models 为什么我看到TypeError:uuu init_uuuuuuuuuuuuu（）缺少1个必需的位置参数：'；删除'；即使我在删除上使用了错误？,django-models,Django Models,我正在django上一门课程，这是models.py代码： from django.db import models from django.contrib.auth.models import User # Create your models here class Game(models.Model): first_player = models.ForeignKey(User, related_name = "games_first_player") second_pl
from django.db import models
from django.contrib.auth.models import User
# Create your models here
class Game(models.Model):
first_player = models.ForeignKey(User, related_name = "games_first_player")
second_player = models.ForeignKey(User, related_name = "games_second_player")
start_time = models.DateTimeField(auto_now_add=True)
last_date = models.DateTimeField(auto_now=True)
class Move(models.Model):
x = models.IntegerField()
y = models.IntegerField()
comment = models.CharField(max_length=300, blank=True)
by_first_player = models.BooleanField()
game = models.ForeignKey(Game, on_delete=models.CASCADE )
(dev) D:\django\projects\tictactoe>python manage.py makemigrations
Traceback (most recent call last): File "manage.py", line 15, in
<module>
execute_from_command_line(sys.argv) File "D:\django\projects\dev\lib\site-packages\django\core\management\__init__.py",
line 371, in execute_from_command_line
utility.execute() File "D:\django\projects\dev\lib\site-packages\django\core\management\__init__.py",
line 347, in execute
django.setup() File "D:\django\projects\dev\lib\site-packages\django\__init__.py", line
24, in setup
apps.populate(settings.INSTALLED_APPS) File "D:\django\projects\dev\lib\site-packages\django\apps\registry.py",
line 112, in populate
app_config.import_models() File "D:\django\projects\dev\lib\site-packages\django\apps\config.py", line
198, in import_models
self.models_module = import_module(models_module_name) File "D:\django\projects\dev\lib\importlib\__init__.py", line 126, in
import_module
return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 994, in _gcd_import File
"<frozen importlib._bootstrap>", line 971, in _find_and_load File
"<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in
exec_module File "<frozen importlib._bootstrap>", line 219, in
_call_with_frames_removed File "D:\django\projects\tictactoe\gameplay\models.py", line 6, in <module>
class Game(models.Model): File "D:\django\projects\tictactoe\gameplay\models.py", line 7, in Game
first_player = models.ForeignKey(User, related_name = "games_first_player") TypeError: __init__() missing 1 required
positional argument: 'on_delete'
（dev）D:\django\projects\tictactoe>python manage.py makemigrations
回溯（最近一次调用last）：文件“manage.py”，第15行，在
从命令行（sys.argv）文件“D:\django\projects\dev\lib\site packages\django\core\management\\ uuuu init\uuuu.py”中执行，
第371行，从命令行执行命令行
utility.execute（）文件“D:\django\projects\dev\lib\site packages\django\core\management\\uuuu init\uuuu.py”，
执行中的第347行
django.setup（）文件“D:\django\projects\dev\lib\site packages\django\\uuuuu init\uuuuu.py”，第行
24，在设置中
apps.populate（settings.INSTALLED_apps）文件“D:\django\projects\dev\lib\site packages\django\apps\registry.py”，
第112行，输入
app\u config.import\u models（）文件“D:\django\projects\dev\lib\site packages\django\apps\config.py”，第行
198，在进口车型中
self.models\u module=import\u module（models\u module\u name）文件“D:\django\projects\dev\lib\importlib\\uuuu init\uuuuu.py”，第126行，在
导入模块
返回_bootstrap._gcd_导入（名称[级别：]，包，级别）文件“”，第994行，在_gcd_导入文件中
“”第971行，在“查找”和“加载文件”中
“”，第955行，在“查找”和“加载”中解锁
文件“”，第665行，在“加载”中
文件“”，第678行，在
exec_模块文件“”，第219行，在
_使用\u帧\u调用\u删除文件“D:\django\projects\tictactoe\gameplay\models.py”，第6行，在
类游戏（models.Model）：游戏中第7行的文件“D:\django\projects\tictactoe\gameplay\models.py”
first\u player=models.ForeignKey（用户，related\u name=“games\u first\u player”）类型错误：\uuuuu init\uuuuu（）缺少必需的1
位置参数：“on_delete”
模型时。ForeignKey