AttributeError: модуль 'django.db.models' не имеет атрибута 'ManyToMany'
Я пытаюсь сделать один из объектов моей модели полем ManyToMany, чтобы я мог получить доступ к объектам через обе модели.
Я получаю следующую ошибку.
listing = models.ManyToMany(Listings, blank=True, related_name="listing")
AttributeError: module 'django.db.models' has no attribute 'ManyToMany'
models.py
class WatchList(models.Model):
listing = models.ManyToMany(Listings, blank=True, related_name="listing")
user = models.ForeignKey(User, on_delete=models.CASCADE, default="")
Имя поля является ManyToManyField
[Django-doc], поэтому оно включает …Field
в ManyToManyField
:
from django.conf import settings
class WatchList(models.Model):
listing = models.ManyToManyField(Listings, blank=True, related_name='watchlists')
user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
Note: It is normally better to make use of the
settings.AUTH_USER_MODEL
[Django-doc] to refer to the user model, than to use theUser
model [Django-doc] directly. For more information you can see the referencing theUser
model section of the documentation.
Note: The
related_name=…
parameter [Django-doc] is the name of the relation in reverse, so from theListings
model to theWatchlist
model in this case. Therefore it (often) makes not much sense to name it the same as the forward relation. You thus might want to consider renaming therelation tolisting
watchlists
.
Примечание: обычно модели Django дается сингулярное имя, поэтому
listing
вместо.listings