Django表单未显示在模板中

Question

我试图创建一个“编辑配置文件”页面/表单，并按照SimpleIsBetterThanComplex教程进行了有关如何通过OneToOne链接扩展用户模型的教程。 但是，当我尝试显示用户个人资料表单以允许用户更新其个人资料时，除了“提交”按钮外，该表单根本不显示...我可能在这里出错的任何想法？

models.py

from __future__ import unicode_literals
from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver
from django.utils import timezone

class Profile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)

    #account types
    is_userA = models.BooleanField('User A', default=True)
    is_userB = models.BooleanField('User B', default=False)
    is_superuser = models.BooleanField('SuperUser', default=False)

    #other fields here
    avatar = models.ImageField('avatar', upload_to='static/media/images/avatars/', null=True, blank=True)
    phone = models.CharField('phone number', max_length=20, blank=True, default='')
    address = models.CharField('address', max_length=100, default='', blank=True)
    city = models.CharField('city', max_length=100, default='', blank=True)
    state = models.CharField('state', max_length=2, default='', blank=True)
    country = models.CharField('country', max_length=100, default='', blank=True)
    date_joined = models.DateTimeField(default=timezone.now)

    @receiver(post_save, sender=User)
    def create_user_profile(sender, instance, created, **kwargs):
        if created:
            Profile.objects.create(user=instance)

    @receiver(post_save, sender=User)
    def save_user_profile(sender, instance, **kwargs):
        instance.profile.save()

表格

class UserForm(forms.ModelForm):
    class Meta:
        model = User
        fields = ('first_name', 'last_name', 'email')

views.py

@login_required
@transaction.atomic
def update_profile(request):
    if request.method == 'POST':
        user_form = UserForm(request.POST, instance=request.user)
        if user_form.is_valid():
            user_form.save()
            messages.success(request, _('Your profile was successfully updated!'))
            return redirect('settings:profile')
        else:
            messages.error(request, _('Please correct the error below.'))
    else:
        user_form = UserForm(instance=request.user)
    return render(request, 'profiles/profile.html', {
        'user_form': user_form,
    })

模板

<div class="col-md-12">
  <div class="mb32">
    <h5 class="uppercase">General Information</h5>
  </div>
  <div class="row">
  <form method="post">
    {% csrf_token %}
    {{ user_form.as_p }}
    <button type="submit">Save changes</button>
  </form>

Answer 1

您的视图现在看起来像这样： views.py

@login_required
@transaction.atomic
def update_profile(request):
    if request.method == 'POST':
        user_form = UserForm(request.POST, instance=request.user)
        if user_form.is_valid():
            user_form.save()
            messages.success(request, _('Your profile was successfully updated!'))
            return redirect('settings:profile')
        else:
            messages.error(request, _('Please correct the error below.'))
    else:
        user_form = UserForm(instance=request.user)
    return render(request, 'profiles/profile.html', {
        'user_form': user_form,
    })

根据此视图（如果为POST方法），您可以验证从表单输入的数据，但是当使用GET方法时，您只需定义UserForm ，因此我认为您必须在最后一行进行缩进： views.py

@login_required
@transaction.atomic
def update_profile(request):
    if request.method == 'POST':
        user_form = UserForm(request.POST, instance=request.user)
        if user_form.is_valid():
            user_form.save()
            messages.success(request, _('Your profile was successfully updated!'))
            return redirect('settings:profile')
        else:
            messages.error(request, _('Please correct the error below.'))
    else:
        user_form = UserForm(instance=request.user)
        return render(request, 'profiles/profile.html', {
        'user_form': user_form,
    })

因此，您的最后一行return render(request, 'profiles/profile.html', {'user_form': user_form,})必须位于else语句下，按照我的理解导致其GET 。