Django inlineformset_factory

时间:2013-12-23 11:23:41

标签: django python-2.7 many-to-many inline-formset formset

我遇到了Django框架的问题。详细地,用户可以创建组并将该成员(> = 1&&< = 3)与该组相关联。每个成员都通过电子邮件地址(唯一)标识。但是,同一成员可以在不同的组中使用不同的名称和姓氏进行partecipate。所以我和Group之间有很多关系(使用)。 在我看来,我有一个inlineformset。但是,当我提交表格时,我总是得到:

  

archi_groupmember.group_id可能不是NULL

我已经更改了MemberGroup表单的小部件,因为用户不必从select中选择成员,但他必须键入成员的邮件。 所以我想我应该保留会员才能保存会员组,但我不知道怎么做!

我是Django的新手,我正在关注文档。

谢谢大家的帮助!!

此处的页面屏幕截图只是为了澄清:http://postimg.org/image/bndh5ug29/

关注我的代码。

Models.py:

class Group(models.Model):
    user = models.ForeignKey(User)
    limit = Q(active = True)
    project = models.ForeignKey(Project, limit_choices_to = limit)
    name = models.CharField(max_length=100)
    code = models.CharField(max_length=100, unique=True)

    def __unicode__(self):
        return self.name


class Member(models.Model):
    groups = models.ManyToManyField(Group, through='GroupMember')
    email = models.EmailField(max_length=254, unique=True)

    def __unicode__(self):
        return self.email


class GroupMember(models.Model):
    group = models.ForeignKey(Group)
    member = models.ForeignKey(Member)
    name = models.CharField(max_length=100)
    surname = models.CharField(max_length=100)

views.py:

@login_required
@user_passes_test(first_login_check, login_url='/detail')
def partecipate(request):
    from django.forms import TextInput

    MemberFormSet = inlineformset_factory(Group, Member.groups.through, form=GroupMemberForm, can_delete=False, extra=3, widgets={'member': TextInput() } )
    if request.method == 'POST':

        form = GroupForm(request.POST)
        member_set = MemberFormSet(request.POST)

        if form.is_valid():

        for form in member_set: 
                print vars( form['member'] )

            group = form.save(commit=False)
            group.user = request.user
            group.code = ''.join(random.choice(string.ascii_uppercase + string.digits) for x in range(10))
            group.save()

            member_set = MemberFormSet(request.POST, instance=group)
            member_set = member_set.save(commit=False)


            payment = Payment()
            payment.group = group
            payment.invoice = _createInvoice(group.project.id, group.id)
            payment.save()
            return HttpResponseRedirect("/")
        else:
            return render(request, "partecipate.html", { 'form': form, 'member_set' : member_set })
    else:
        form = GroupForm()
        form.Meta.model.project.queryset = Project.objects.filter(active=True)
        member_set = MemberFormSet(initial=[ {'name': request.user.first_name,'surname': request.user.last_name,'member':request.user.email} ])

    return render(request, "partecipate.html", { 'form': form, 'member_set' : member_set })

1 个答案:

答案 0 :(得分:0)

您使用的是什么版本的Django?

自1.3以来,帮助文档中有一个使用 inlineformset_factory 的示例。示例(下面的链接)清楚地显示了传递记录的实例。没有它,您的表单集将不会链接到实际数据。

https://docs.djangoproject.com/en/1.7/topics/forms/modelforms/#using-an-inline-formset-in-a-view

我还怀疑将 Member.groups.through 表类指定为子级。我认为你应该把它留作会员,因为直通表是内部机制的一部分。