你需要获取User对象，然后将其添加到emails_for_help字段中。ManyToManyField创建实例时，不能向其添加对象。看一下doc。
class Set_user(FormView):
template_name="pkm_templates/set_up_user.html"
form_class = Set_User_Form
success_url = '/thanks/'
def form_valid(self, form):
org = form.cleaned_data.get('organization')
emails = form.cleaned_data.get("share_email_with")
users = User.objects.filter(email__in=emails)
instance = Setupuser.objects.create(organization=org)
for user in users:
instance.emails_for_help.add(user)
return redirect("/")
编辑
这样做的另一种方法是使用.set()。
class Set_user(FormView):
template_name="pkm_templates/set_up_user.html"
form_class = Set_User_Form
success_url = '/thanks/'
def form_valid(self, form):
org = form.cleaned_data.get('organization')
emails = form.cleaned_data.get("share_email_with")
users = User.objects.filter(email__in=emails)
instance = Setupuser.objects.create(organization=org)
instance.emails_for_help.set(users)
return redirect("/")
class Set_user(FormView):
template_name="pkm_templates/set_up_user.html"
form_class = Set_User_Form
success_url = '/thanks/'
def form_valid(self, form):
org = form.cleaned_data.get('organization')
emails = form.cleaned_data.get("share_email_with")
users = User.objects.filter(email__in=emails)
instance = Setupuser.objects.create(organization=org)
instance.emails_for_help.add(*users)
return redirect("/")
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