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python - 表单注册为有效但不更新

问题描述

这是一个非常奇怪的现象。为什么即使表单有效，值也不会更新？如果我在 django admin 中执行它，它会起作用。我什至没有收到任何错误。该表格只是有效的，但它没有被更新。就好像他们采用旧值来更新......

html:

<form action="{% url 'account:displayinfo' request.user.id %}" method="POST" enctype="multipart/form-data">{% csrf_token %}

{{ form.as_p }}

<div class="d-flex justify-content-center">
<button type="submit" class="btn btn-primary btn-sm col-lg-5">Update</button>
</div>

</form>

视图.py

def display_information_view(request, *args, **kwargs):
    user_id = kwargs.get("user_id")
    account = Account.objects.get(pk=user_id)
    context = {}
    displayinfo = AccountDisplayInfo.objects.get(account=account)
    if request.method == "POST":
        form = DisplayInformationForm(request.POST, request.FILES, instance=request.user)
        if form.is_valid():
            info = form.save(commit=False)
            info.account = request.user
            info.save()
            messages.success(request, 'Your profile display information have been updated', extra_tags='editdisplayinfo')
            return redirect("account:view", user_id=account.pk)
        else:
            form = DisplayInformationForm(request.POST, instance=request.user,   
        initial={
            "instagram": displayinfo.instagram,
        }
       )

            context['form'] = form
    else:
        form = DisplayInformationForm(
        initial={
            "instagram": displayinfo.instagram,
            }
       )
        context['form'] = form
    return render(request, "account/displayinfo.html", context)

表格.py

class DisplayInformationForm(forms.ModelForm):
    class Meta:
        model = AccountDisplayInfo
        fields = ('instagram',)

模型.py

class Account(AbstractBaseUser):
 email                  = models.EmailField(verbose_name="email", max_length=60, unique=True)
 username               = models.CharField(max_length=30, unique=True)

class AccountDisplayInfo(models.Model):
    account = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    instagram = models.CharField(max_length=50, unique=True, blank=True, null=True) #instagram


@receiver(post_save, sender=Account)
def create_AccountDisplayInfo(sender, instance, created, **kwargs):
    if created:
        AccountDisplayInfo.objects.create(account=instance)

标签： pythondjangodjango-modelsdjango-viewsdjango-templates

解决方案

您将表单的实例设置为不正确的模型实例。查看您的表单，这是ModelForm因为AccountDisplayInfo您将实例传递为instance=request.user. 将所有此类代码更改为instance=displayinfo.

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