46

保存ModelForm后如何获取主键?验证并保存表单后,我想将用户重定向到需要联系人主键的contact_details 视图。

def contact_create(request):
    if request.method == 'POST':
        form = ContactForm(request.POST)
        if form.is_valid():
            form.save()
            return HttpResponseRedirect(reverse(contact_details, args=(form.pk,)))
    else:
        form = ContactForm()
4

2 回答 2

62

ModelForm保存方法返回保存的对象。

试试这个:

def contact_create(request):
    if request.method == 'POST':
        form = ContactForm(request.POST)
        if form.is_valid():
            new_contact = form.save()
            return HttpResponseRedirect(reverse(contact_details, args=(new_contact.pk,)))
    else:
        form = ContactForm()
于 2009-04-09T05:50:11.463 回答
13

如果你设置了 form.save(commit=False) 因为你想修改数据并且你有一个多对多的关系,那么答案会有点不同:

def contact_create(request):
    if request.method == 'POST':
        form = ContactForm(request.POST)
        if form.is_valid():
            new_contact = form.save(commit=False)
            new_contact.data1 = "gets modified"
            new_contact.save()
            form.save_m2m()
            return HttpResponseRedirect(reverse(contact_details, args=(new_contact.pk,)))
    else:
        form = ContactFrom()

https://docs.djangoproject.com/en/1.3/topics/forms/modelforms/#the-save-method

于 2011-06-06T04:58:11.470 回答