2个表单，1个视图，2个Django中的SQL表 [英] 2 forms, 1 view, 2 SQL tables in Django

问题描述

我很难理解如何将数据从两个django表单中提交到两个独立的数据库表，从相同的视图。我只想要一个提交按钮。虽然这个问题让我更接近到解决方案，我收到错误，数据没有写入数据库。我认为这个代码实际上是检查这两种形式，而不是一次性提交这两种形式。任何想法？

I'm struggling to understand how to submit data from two django forms into two separate database tables from the same view. I only want one submit button. While this question got me closer to the solution, I'm getting errors and the data is not writing to the database. I think this code actually checks the two forms against each other instead of submitting both forms in one go. Any ideas?

这是我试过的：

对于一个表单 - >一个表。这样做，所以这是一个开始。

For one form --> one table. This works, so it's a start.

# 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中添加此表单以获取后续的views.py时，我得到局部变量' book_form'在分配前引用。这通常是一个简单的全局vs局部变量问题来解决，但我不知道在这种情况下是什么意思。

However, when I add this form in from forms.py to get the subsequent views.py I get local variable 'book_form' referenced before assignment. That's usually an easy global-vs-local variable issue to fix, but I don't know what it means in this case.

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})

推荐答案

根据问题的意见：

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})

这篇关于2个表单，1个视图，2个Django中的SQL表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！