Django 屬性錯誤：“AttributeError：模塊‘django.db.models’沒有屬性‘ManytoManyField’”

Question

我在我的終端中執行這行代碼：

python manage.py makemigrations

我得到這個作為輸出：

回溯（最近一次調用最后一次）：

File "manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "C:\Users\Bryan\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "C:\Users\Bryan\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 357, in execute
    django.setup()
  File "C:\Users\Bryan\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Users\Bryan\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\apps\registry.py", line 112, in populate
    app_config.import_models()
  File "C:\Users\Bryan\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\apps\config.py", line 198, in import_models
    self.models_module = import_module(models_module_name)
  File "C:\Users\Bryan\AppData\Local\Programs\Python\Python37-32\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 "C:\Users\Bryan\Desktop\wisdompets\adoptions\models.py", line 3, in <module>
    class Pet(models.Model):
  File "C:\Users\Bryan\Desktop\wisdompets\adoptions\models.py", line 13, in Pet
    vaccinations = models.ManytoManyField('Vaccine', blank=True)
**AttributeError: module 'django.db.models' has no attribute 'ManytoManyField'**

誰能讓我知道我做錯了什么？

Answer 1

t 需要在 ManyToManyField 部分大寫，另外 Vaccine 應該引用一個模型

如果它在不同的models.py中。

從 [Appname].models 導入疫苗

疫苗接種 = models.ManyToManyField（疫苗，空白=真）。