从另一个模型中提取和保存数据

Question

在我的应用中，用户创建一个项目，然后创建一个团队并通过向团队成员发送邮件来邀请他们注册该应用。 我试图弄清楚如何将受邀用户添加到之前创建的团队中。 我尝试使用： TeamMember.user = user 但显然它不起作用；） 你能帮我让它工作吗？

注册/views.py：

def TeamRegister(request):
    if request.method == 'POST':
        form = TeamMembersForm(request.POST)
        if form.is_valid():
            user = form.save(commit=False)
            password = MyUser.objects.make_random_password()
            user.set_password(password)
            user.is_active = False
            user.is_employee = True
            TeamMember.user = user
            user.save()
            u1 = user.id
            a1 = MyUser.objects.get(email = request.user.email)
            a2 = Project.objects.filter(project_hr_admin = a1)
            a3 = a2.latest('id')
            a4 = a3.team_id
            a4.members.add(u1)
            current_site = get_current_site(request)
            message = render_to_string('acc_active_email.html', {
                'user':user,
                'domain':current_site.domain,
                'uid': urlsafe_base64_encode(force_bytes(user.pk)),
                'token': account_activation_token.make_token(user),
            })
            mail_subject = 'You have been invited to SoftScores.com please sign in to get access to the app'
            to_email = form.cleaned_data.get('email')
            email = EmailMessage(mail_subject, message, to=[to_email])
            email.send()
            return HttpResponse('An email have been sent to your user asking him to sign in')

    else:
        form = TeamMembersForm()

    return render(request, 'team_register.html', {'form': form})

app/models.py

class Team(models.Model):
    team_name = models.CharField(max_length=100, default = '')
    team_hr_admin = models.ForeignKey(MyUser, blank=True, null=True)
    members = models.ManyToManyField(MyUser, related_name="members")


    def __str__(self):
        return self.team_name


class Project(models.Model):
    name = models.CharField(max_length=250)
    team_id = models.ForeignKey(Team, blank=True, null=True)
    project_hr_admin = models.ForeignKey(MyUser, blank=True, null=True)

    def get_absolute_url(self):
        return reverse('website:ProjectDetails', kwargs = {'pk' : self.pk})

    def __str__(self):
        return self.name

Answer 1

您还需要以某种方式识别团队。如果您在视图中有团队，那么您可以像这样创建TeamMember 对象：

# Just one suggestion of how this could be done, but this shouldn't work out of the box
TeamMember.objects.create(user_id=user.id,
                          team_id=Team.objects.get(id=form.cleaned_data['team_id'])) 

至于您的模型，请查阅 Django 文档以了解 Django 中的 M2M 关系：https://docs.djangoproject.com/en/1.11/topics/db/examples/many_to_many/

创建一个ManyToManyField 并将TeamMember 用作through 模型或完全删除它，因为Django 也会自动生成它。