Question

为了向默认模型添加更多功能，我采用了Django中一对一的方法。然后，我想自定义我的更新/编辑用户配置文件页面。我这样重写更新表单：

{% load static %}
...

<div  id="block-center" class="col-md-6 col-md-offset-3">

<form method="post">
  {% csrf_token %}
          ...
          <div class="form-group">
            <p>
                <label for="id_location">Location:</label> <input class="form-control" placeholder="Location"type="text" name="location" value="{{user.profile.location}}"maxlength="30" id="id_location" />
            </p>
          </div>
          <div class="form-group">
                {% if user.profile.upload.url%}
                <p class="file-upload">Currently: <img src="{{user.profile.upload.url}}" alt="Avatar" class="avatar"><br></p>
                <label for="id_upload">Change:</label> <input type="file" name="upload"  value="{{user.profile.upload}}" id="id_upload" />

                {% else%}
                <label for="id_upload">Avator:</label> <input type="file" name="upload"  value="{{user.profile.upload}}" id="id_upload" />
                {% endif %}
          </div>
          <button class="btn btn-primary" type="submit">Save changes</button>
</form>
</div>

我的 models.py ：

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

class Profile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    bio = models.TextField(max_length=500, blank=True)
    location = models.CharField(max_length=30, blank=True)
    birth_date = models.DateField(null=True, blank=True)
    upload = models.FileField()
@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()

我的 views.py：

from django.db import models
from django.contrib.auth.models import User
from users.forms import UserForm,ProfileForm
from django.contrib import messages
from django.shortcuts import render,redirect
from django.http import HttpResponseRedirect
from django.urls import reverse
from django.contrib.auth import login,logout,authenticate
from django.contrib.auth.forms import UserCreationForm
from django.contrib.auth.decorators import login_required
from django.db import transaction
from django.utils.translation import gettext as _

@login_required
@transaction.atomic
def update_profile(request):
    if request.method == 'POST':
        user_form = UserForm(request.POST, instance=request.user)
        profile_form = ProfileForm(request.POST, instance=request.user.profile)
        profile = request.user.profile
        if user_form.is_valid() and profile_form.is_valid():
            user_form.save()
            profile_form.save()
            messages.success(request, _('Your profile was successfully updated!'))
            return redirect('blog:index')
        else:
            messages.error(request, _('Please correct the error below.'))

    else:
        user_form = UserForm(instance=request.user)
        profile_form = ProfileForm(instance=request.user.profile)
        user = User.objects.get(id=request.user.id)
        profile = request.user.profile
    return render(request, 'profiles/profile.html', {
        'user_form': user_form,
        'profile_form': profile_form,
        'profile':profile
    })

除Userprofile模型中上传的文件字段外，其他所有字段均正常工作。我不知道为什么有人可以帮我吗？

Answer 1

尝试将enctype添加到您的表单标签：

<form method="post" enctype="multipart/form-data">

上传文件时很有必要。

为什么我无法在Django中更新一对一模型的FileField？

1 个答案: