Django - 將圖像上傳到數據庫引發IntegrityError

我試圖讓用戶上傳圖像。當用戶第一次創建時，他們被賦予一個唯一的ID /主鍵。當用戶上傳圖像時，我想根據用戶唯一ID是什麼將該圖像保存在文件夾中。例如，如果用戶唯一的ID是1，我想將它保存在Django - 將圖像上傳到數據庫引發IntegrityError

1/uploadedPhotos/imageName

這是我的模型：

def get_file_path(instance, filename): 
    return os.path.join('%s/uploadedPhotos' % instance.user_id, filename) 

class UserImages(models.Model): 
    user = models.ForeignKey(User) 
    photo = models.ImageField(upload_to=get_file_path)

，這是我的表單：

class UploadImageForm(forms.ModelForm): 
    class Meta: 
     model = UserImages 
     fields = ['photo']

和這是我的看法：

def uploadImageView(request): 
    if request.method == 'POST': 
     form = UploadImageForm(request.POST, request.FILES) 
     if form.is_valid(): 
      # file is saved 
      form.save() 
      return redirect('/') 
    else: 
     form = UploadImageForm() 

    return render(request, 'uploadImagePage.html', {'uploadImageForm': form})

調用upl的URL oadImageView視圖是/ uploadImage /。當我去到該網址並上傳使用uploadImageForm的圖像，它提供了一個錯誤說：

IntegrityError at /uploadImage/ 

null value in column "user_id" violates not-null constraint 
DETAIL: Failing row contains (1, null, None/uploadedPhotos/imageName.png).

和回溯導致回我uploadImageView的

form.save()

線。我做錯了什麼導致這個錯誤？

來源

2014-02-23 user2719875

您的UserImages型號需要user，但您的表單UploadImageForm只詢問photo。您需要設置user，嘗試這樣的事情：

def uploadImageView(request): 
    if request.method == 'POST': 
     form = UploadImageForm(request.POST, request.FILES) 
     if form.is_valid(): 
      # file is saved 
      instance = form.save(commit=False) 
      instance.user = request.user 
      instance.save() 
      return redirect('/') 
    else: 
     form = UploadImageForm() 

    return render(request, 'uploadImagePage.html', {'uploadImageForm': form})

來源

2014-02-23 17:16:28

obj = form.save(commit=False) 
obj.user = request.user 
obj.save()

來源

2014-02-23 17:18:11 vadimchin

必須從request.user提取用戶，並將其添加到表單數據。

來源

2014-02-23 17:19:47 matija

Django - 將圖像上傳到數據庫引發IntegrityError

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