难以上传文件到FileField，表格无效

Question

晕，我试图用filefield上传文件。但我总是失败。当执行语句form.errors.as_data()时，浏览器返回'tempfile'。我已经试图从django文档和一些django参考找到解决方案。但是，仍然无法解决它。 （

这里是我的view.py

def dataprocessing(request): 
if request.method == 'POST': 
    form = DocumentForm(request.POST, request.FILES) 

    if form.is_valid(): 
     import pdb; pdb.set_trace() 
     newdoc = Document(docfile=request.FILES['myfile']) 
     newdoc.save() 

     #Redirect to the dataprocessing after POST 
     #return render(request, 'dataprocessing.html') 
     return HttpResponse("success") 
    else: 
     return HttpResponse(form.errors.as_data()) 

else: 
    import pdb; pdb.set_trace() 
    form = DocumentForm() #A empty, unbound form 

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

models.py

class Document(models.Model): 
docfile = models.FileField(upload_to='documents/%Y/%m/%d') 

forms.py

class DocumentForm(forms.Form): 
tempfile = forms.FileField() 

而且dataprocessing.html

<form method="post" enctype="multipart/form-data" action="{% url "dataprocessing" %}"> 

        <div class="form-group"> 
         <label for="up">Input Data</label> {% csrf_token %} 
         <input type="file" name=myfile class="filestyle" data-buttonName="btn-primary" data-buttonBefore="true" data-size="sm" accept="application/vnd.ms-excel, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" 
          id="up"> 
        </div> 
        <div class="form-group"> 
         <button type="submit" class="btn btn-primary btn-block">Upload Data</button> 
         <button type="button" class="btn btn-primary btn-block">Download Template</button> 
        </div> 
       </form> 

Answer 1

怎么样使用forms.ModelForm instaed forms.Form这样？

# forms.py 
class DocumentForm(forms.Model): 
    class Meta: 
     model = Document 
     fields = ['tempfile'] 

，让你views.py这样的：

# views.py 
def dataprocessing(request): 
    if request.method == 'POST': 
     form = DocumentForm(request.POST, request.FILES) 
     if form.is_valid(): 
      form.save() 
      return HttpResponse("success") 
     else: 
      return HttpResponse(form.errors.as_data()) 
    else: 
     form = DocumentForm() #A empty, unbound form 
    return render(request, 'dataprocessing.html', {'form': form}) 

这使得form对象可以直接保存到你的模型。