Django 中的 2 个表单、1 个视图、2 个 SQL 表

Question

我很难理解如何将两个 django 表单中的数据从 同一视图 提交到两个单独的数据库表中。我只想要一个提交按钮。虽然this 问题让我更接近解决方案，但我遇到了错误并且数据没有写入数据库。我认为这段代码实际上检查了这两个表单，而不是一次性提交两个表单。有什么想法吗？

这是我尝试过的：

对于一个表格 --> 一个表格。这行得通，所以这是一个开始。

# views.py
def BookFormView(request):
    if request.method == 'POST':
    form = BookForm(request.POST)
        if form.is_valid():
            form.save()
            return HttpResponseRedirect("/books/")
    else:
        form = BookForm()
    return render(request, 'books/createbooks.html',
              {'form' : form})

但是，当我从 forms.py 添加此表单以获取后续views.py 时，我得到local variable 'book_form' referenced before assignment。这通常是一个容易解决的全局与局部变量问题，但我不知道在这种情况下它意味着什么。

def BookFormView(request):
    if request.method == 'POST':
        if 'book' in request.POST:
            book_form = BookForm(request.POST, prefix='book')
            if book_form.is_valid():
                book_form.save()
                return HttpResponseRedirect("/books/")

            bookdetailsform = BookDetailsForm(prefix='bookdetails')
        elif 'bookdetails' in request.POST:
            bookdetailsform = BookDetailsForm(request.POST, prefix='bookdetails')
            if bookdetailsform.is_valid():
                bookdetailsform.save()
                return HttpResponseRedirect("/books/")

            book_form = BookForm(prefix='book')
    else:
        book_form = BookForm(prefix='book')
        bookdetailsform = BookDetailsForm(prefix='bookdetails')
    return render(request, 'books/createbook.html',
            {'book_form' : book_form,
             'bookdetailsform': bookdetailsform})

Answer 1

我认为问题在于，当用户提交bookdetails 发布请求时，
它将在if 'book' in request.POST: 条件下处理。为什么？
因为字符串bookdetails包含字符串book，所以无论他们做什么样的请求，都会用if book in request.POST:条件处理。

我相信解决如果条件问题是第一步。

Answer 2

基于问题的 cmets：

def BookFormView(request):
    if request.method == 'POST':
            book_form = BookForm(request.POST, prefix='book')
            bookdetailsform = BookDetailsForm(request.POST, prefix='bookdetails')
            if book_form.is_valid() and bookdetailsform.is_valid():
                book_form.save()
                bookdetailsform.save()
                return HttpResponseRedirect("/books/")
    else:
        book_form = BookForm(prefix='book')
        bookdetailsform = BookDetailsForm(prefix='bookdetails')
    return render(request, 'books/createbook.html', 
                  {'book_form': book_form, 'bookdetailsform': bookdetailsform})