数据未保存在 Django 中的数据库中

Question

我正在尝试将数据从网站保存到数据库中。我的网页正在获取数据（来自我的系统的图像），但在数据库中，它没有显示出来。如果我手动添加，那么它会创建一个新的用户条目并存储它。 这是我的文件：

models.py

class Details(models.Model):
name = models.CharField(max_length=122)
username = models.CharField(max_length=122)
email = models.EmailField(max_length=122)
password = models.CharField(max_length=20)
def __str__(self):
    return self.name

class Image_Data(models.Model):
    img_User = models.ForeignKey(
        Details, blank=True, null=True, on_delete=models.CASCADE)
    img_password = models.ImageField(null=True, blank=True)

    def __str__(self):
    return str(self.img_password)

forms.py

class ImageForm(ModelForm):
class Meta:
    model = Image_Data
    fields = ('img_password',)
    labels = {
        'img_password': 'Add your image ',
    }
    widgets = {
        'img_password': forms.FileInput(attrs={'class': 'form-control', 'placeholder': 'Upload from device'})
    }

views.py

def register_new_b(request):
saved = False
if request.method == "POST":
    # take whatever is posted to the Details Form
    form = ImageForm(request.POST)
    if form.is_valid():
        form.save()
        messages.success(request, 'Your message has been sent!')
        return HttpResponseRedirect('/register_new_b?saved=True')
else:
    form = ImageForm()
    if 'saved' in request.GET:  # sends saved var in GET request
        saved = True

return render(request, 'register2.html', {'form': form, 'saved': saved})

这是我在保存图像后在数据库中得到的信息

Answer 1

行内：

form = ImageForm(request.POST)

你需要添加 request.FILES:

form = ImageForm(request.POST, request.FILES)

*编辑

我自己的代码中的一个工作示例： 在views.py

def change_profile_pic(request):
    context = dict()
    if request.method == 'POST':
        form = ProfilePictureForm(request.POST, request.FILES)
        if form.is_valid():
            form.store(request.user.id)
            form = ProfilePictureForm()
            context['success_message'] = 'Picture changed'
            request.user.employee.refresh_from_db()
        else:
            context['error_message'] = 'Unable to change picture'
    else:
        form = ProfilePictureForm()
    context['form'] = form

    return render(request, 'template.html', context)

在forms.py

class ProfilePictureForm(forms.Form):
    image = forms.ImageField(required=True)

    def store(self, user_id):
        user = User.objects.get(id=user_id)
        user.employee.profile_picture = self.cleaned_data['image']
        user.employee.save()

在models.py

class Employee(models.Model):
    user = models.OneToOneField(User, blank=False, on_delete=models.CASCADE)
    profile_picture = models.ImageField(upload_to='profile_pictures', max_length=200, null=True, blank=True)

不过我也试过ModelForm，这样也能正确保存文件