Django 如何自动将用户保存在 Django 表单中？

Question

当我将“用户”字段传递到我的模型表单时。我将所有用户详细信息作为下拉列表。看图：

我试图在不显示此下拉列表的情况下保存当前用户实例，因为我希望用户在不选择或显示此下拉列表的情况下自动保存。

这是我的 forms.py 文件：

class ProfileFroms(forms.ModelForm):
      
      class Meta:
          model = UserProfile
          fields = ["user","profile_pic","mobile","country","website_link"]

当我从字段中删除“用户”时出现此错误：

"NOT NULL constraint failed: members_userprofile.user_id"

我也试过这个代码来保存当前用户，但它给我带来了同样的错误。

views.py

if forms.is_valid():
          forms.user = request.user

这是我的完整代码：

models.py

class UserManagement(AbstractUser):
      is_subscriber = models.BooleanField(default=False)
      is_customer = models.BooleanField(default=False)


class UserProfile(models.Model):
      user = models.ForeignKey(settings.AUTH_USER_MODEL,on_delete=models.CASCADE,related_name="userprofile")
      profile_pic = models.ImageField(upload_to='profile/images/',validators=[validate_file_size,FileExtensionValidator( ['png','jpg'] )],blank=True,null=True)
      mobile = models.IntegerField(blank=True,null=True)
      country = models.CharField(max_length=200,blank=True,null=True)
      website_link = models.CharField(max_length=3000,blank=True,null=True)

views.py

def UserProfileView(request):

   userinfo = UserManagement.objects.filter(username=request.user)
    
   
   forms = ProfileFroms(request.POST,request.FILES or None)
   if request.method == "POST":
      if forms.is_valid():
          #forms.user = request.user #tried this line for save current user but didn't work 
          forms.save()
          messages.add_message(request, messages.INFO,'Profile updated sucessfully') 
          return redirect("members:user-profile-private")
   else:
      messages.add_message(request, messages.INFO,'Somethings wrong. Profile not updated')  
      print("invalid")

   context={"userinfo":userinfo,"forms":forms}

   return render(request,"members/privateprofile.html",context)

Answer 1

从表单中删除 user 字段：

class ProfileFroms(forms.ModelForm):
    class Meta:
        model = UserProfile
        fields = ['profile_pic', 'mobile', 'country', 'website_link']

然后您更改表单的 .instance（而不是表单本身），因此：

if forms.is_valid():
    forms<strong>.instance.user = request.user</strong>
    forms.save()

Django 如何自动将用户保存在 Django 表单中？

Django how to automatically save user in a Django Form?

django

django-forms