在 Django 中使用文本字段和字符字段 model 时出错

Question

我一直在尝试在 class 中使用 Textfield，但建议没有出现。 相反，我在 Cmd 控制台中收到错误消息。 甚至在使用 CharField 时也是如此。

下面是我的代码：

from django.db import models 
from django.db.models import CharField
from django.db.models import Textfield

from datetime import datetime

class Posts(models.Model):
  title = models.CharField(max_length=200)
  body = models.TextField()
  created_at = models.DateTimeField(default=datetime.now, blank=True)

这是我在 CMD 中遇到的错误：

Exception in thread django-main-thread:
Traceback (most recent call last):
File "d:\python\python38\lib\threading.py", line 932, in _bootstrap_inner
self.run()
File "d:\python\python38\lib\threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\USER\Envs\py1\lib\site-packages\django\utils\autoreload.py", line 53, in wrapper
fn(*args, **kwargs)
File "C:\Users\USER\Envs\py1\lib\site-packages\django\core\management\commands\runserver.py", line 
109, in inner_run
autoreload.raise_last_exception()
File "C:\Users\USER\Envs\py1\lib\site-packages\django\utils\autoreload.py", line 76, in 
raise_last_exception
raise _exception[1]
File "C:\Users\USER\Envs\py1\lib\site-packages\django\core\management\__init__.py", line 357, in 
execute
autoreload.check_errors(django.setup)()
File "C:\Users\USER\Envs\py1\lib\site-packages\django\utils\autoreload.py", line 53, in wrapper
fn(*args, **kwargs)
File "C:\Users\USER\Envs\py1\lib\site-packages\django\__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "C:\Users\USER\Envs\py1\lib\site-packages\django\apps\registry.py", line 114, in populate
app_config.import_models()
File "C:\Users\USER\Envs\py1\lib\site-packages\django\apps\config.py", line 211, in import_models
self.models_module = import_module(models_module_name)
File "d:\python\python38\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "E:\Python\djangoproject\posts\models.py", line 3, in <module>
from django.db.models import Textfield
ImportError: cannot import name 'Textfield' from 'django.db.models' (C:\Users\USER\Envs\py1\lib\site- 
packages\django\db\models\__init__.py)

Answer 1

其实你不需要单独导入字段，你可以使用之前导入的 django.db.models 。

并且产生错误是因为您应该使用带有大写F的TextField