[英]Django: Why is the Image Field not working
再会,
我正在使用 Django 图像字段和用户 model 测试一些东西。 关键是任何用户都可以上传和更新个人资料图片。 但是当我 select 一张图片并按上传时,我收到消息'此字段是必需的。 所以就好像我没有选择任何东西一样。
\\照片.html
<form method="POST">
{% csrf_token %}
{{ form }}
<button type="submit">Upload</button>
</form>
\\views.py
def photo_view(request):
try:
profile = request.user.userimage
except UserImage.DoesNotExist:
profile = UserImage(user=request.user)
if request.method == 'POST':
form = UserImageForm(request.POST, instance=profile)
if form.is_valid():
form.save()
return redirect('/dashboard/user/profile')
else:
form = UserImageForm(instance=profile)
return render(request, 'photo.html', {'form': form})
\模型.py
class UserImage(models.Model):
user = models.OneToOneField(
settings.AUTH_USER_MODEL, default=None, null=True, on_delete=models.CASCADE)
photo = models.ImageField(
upload_to='images/', height_field=None, width_field=None, max_length=100)
def __str__(self):
return str(self.user)
\\设置.py
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
MEDIA_URL = '/media/'
我试过这个https://www.geeksforgeeks.org/imagefield-django-models/
有人知道解决方案吗? 或者在处理图像时我什至应该使用 ImageField 吗?
非常感谢: :-)
这里有两个问题:如果上传文件,需要指定enctype="multipart/form-data"
:
form method="POST" enctype="multipart/form-data">
{% csrf_token %}
{{ form }}
<button type="submit">Upload</button>
</form>
此外,您需要将request.POST
和request.FILES
都传递给表单:
def photo_view(request):
try:
profile = request.user.userimage
except UserImage.DoesNotExist:
profile = UserImage(user=request.user)
if request.method == 'POST':
form = UserImageForm(request.POST, request.FILES, instance=profile)
if form.is_valid():
form.save()
return redirect('/dashboard/user/profile')
else:
form = UserImageForm(instance=profile)
return render(request, 'photo.html', {'form': form})
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