Question

我想使用CreateView在视图中创建并保存一个对象。

> example in django documentation，当我具有字段值（我知道用户和他选择的书）并希望在视图内部创建它时，使用一种形式来创建新对象。

from django.views import generic

class BookReserveView(generic.CreateView):
    model = Reservation
    person = current_login_user # the user who logged in
    book = selected_book      # selected book (I have the pk)
    success_url = reverse_lazy('book:reserve_book') # when the object saved go to this url

这是我的预订模式。

class Reservation(models.Model):

    person = models.ForeignKey(User, on_delete=models.CASCADE)
    book = models.ForeignKey(Copy, on_delete=models.CASCADE)

    date_reserved = models.DateTimeField(auto_now_add=True)

我尝试了这段代码，并且对我有用。但我喜欢使用通用视图（CBV）

from book.models import Copy,Reservation

def BookReserveView(request,pk):
    book = Copy.objects.get(pk=pk)
    reserve_obj = Reservation(book=book, person=request.user)
    reserve_obj.save()
    return HttpResponse(str(reserve_obj))

Answer 1

您应该在CBV中使用form_valid方法查看文档-https://docs.djangoproject.com/en/2.0/ref/class-based-views/generic-editing/#form_valid，例如form.instance.user = self.request.user，以提供您的价值观

如何在Django中的CreateView中创建对象？

1 个答案: