我正在编写属于组和用户的帖子的创建方法。我一直在遇到此错误，尽管这是在文档和我查看的其他所有来源中完成的错误。这是相关文件：
models.py
from django.db import models
from django.contrib.auth.models import User, Group
class Post(models.Model):
title = models.CharField(max_length=255, unique=True)
body = models.TextField()
likes_total = models.IntegerField(default=0)
pub_date = models.DateTimeField()
author = models.ForeignKey(User, on_delete=models.CASCADE)
group = models.ForeignKey(Group, on_delete=models.CASCADE)
def __str__(self):
return self.name
def summary(self):
# return the 1st 100 chars
return self.body[:100]
def pub_date_pretty(self):
# strftime is how to break down time
return self.pub_date.strftime('%b %e %Y')
posts.urls.py
from . import views
from django.urls import path
app_name = 'posts'
urlpatterns = [
path('create/<int:group_id>/', views.create, name='create'),
]
posts.views.py
def create(request, group_id):
group = get_object_or_404(Group, pk= group_id)
if request.method == 'POST':
if request.POST['body']:
post = Post()
post.title = request.POST['title']
post.body = request.POST['body']
post.pub_date = timezone.datetime.now()
post.author = request.user
post.group = group
post.save()
return redirect('/groups/' + str(group_id))
else:
return render(request, 'groups/detail.html', {'group':group})
else:
return render(request, 'groups/detail.html', {'group':group})
当我将小组保存到帖子(post.group = group(时，错误会抛出，尽管这是我学会的方法。希望有人能解决这个问题。谢谢！
您似乎已经混合了两种不同的Group型号。在您的模型中，您有：
from django.contrib.auth.models import User, Group
在您的视图中，您有：
from groups.models import Group
这些是完全不同的类，这就是为什么您会遇到错误告诉您您不能将groups.models.Group分配给auth.models.Group。
我不确定您打算是哪个，但是您需要在两个地方使用同一类。