Question

我是代码的新手，所以我很擅长。我使用Django作为框架。目前这是我用户输入的html代码。

<html>
<head>
  <title>uploader</title>
  <style>
    h1 {
      font-size: 2em;
      font-weight: bold;
      color: #777777;
      text-align: center
    }
    table {
      margin: auto;
    }
    a {
      text-decoration: none
}
  </style>
</head>

<body>

   <h1>
      {{what}}
      <h3><p style="text-align: left;text-decoration: none;"><a href="{% url 'home' %}">Back</p></a></h3>
  </h1>
 <hr>
  <table>
    <tr>
      <td>
        <form action="upload/" method="POST" enctype="multipart/form-data">
 {% csrf_token %}
 <fieldset>
   Category of the device:<br>
   <input type="text" name="category" value="" required id="cat">
   <br>
   Model:<br>
   <input type="text" name="model" value="" required id="mod">
 <br>
          <input type="submit" value="Upload File" class="submit" name="submit" />
 <input type="file" name="file"/>

 </fieldset>

        </form>


      </td>
    </tr>
  </table>

</body>

</html>

views.py

def home(request):
    return render(request, 'index.html', {'what':'Upload Files'})


def upload(request):
try:
    if request.method == 'POST' and request.FILES['file']:
        try:    
            myfile = request.FILES['file']
            category = request.POST['category']
            model = request.POST['model']
            validate_file_extension(myfile)
            fs = FileSystemStorage(location='uploaded/')
            filename = request.FILES['filename'].name
            handle_uploaded_file(request.FILES['file'], str(request.FILES['file']))
            modified_name = "{}_{}_{}".format(filename, category, modle)
            filename = fs.save(modified_name, myfile)
            return redirect("/success")
        except:
            return redirect("/unsuccessful")
except:
    return redirect("/upload")

def handle_uploaded_file(file, filename):
    if not os.path.exists('uploaded/'):
        os.mkdir('uploaded/')
    with open('uploaded/' + filename, 'wb+') as destination:
        for chunk in file.chunks():
            destination.write(chunk)

如何重命名用户上传的文件，使用＆＃34; _＆＃34;将他们输入的文本重命名为文件名的后面。

例如：

filename = myfile
category = camera 
model    = XYZ123

该文件应重命名为＆＃34; myfile_camera_XYZ123＆＃34;。

Answer 1

首先获取表单值category和model。然后从上传的文件中获取文件名。

category = request.POST['category']
model = request.POST['model']

# And filename
filename = request.FILES['filename'].name


modified_name = "{}_{}_{}".format(filename, category, modle)
filename = fs.save(modified_name, myfile)

Answer 2

这是继续使用django表单的更好方法。

# forms.py
from django import forms

class UploadFileForm(forms.Form):
    category = forms.CharField(max_length=100)
    model = forms.CharField(max_length=100)
    file = forms.FileField()

# views.py
def upload(request):
    if request.method == 'POST':
        form = UploadFileForm(request.POST, request.FILES)
        if form.is_valid():
            data = form.cleaned_data
            validate_file_extension(data.file)
            file_ext = data.file.split(".")[-1]
            file_core = data.file.replace('.'+file_ext, '')
            filename = '{0}_{1}_{2}.{3}'.format(file_core, data.category, data.model, file_ext)
            handle_uploaded_file(filename)
            # ... fill the end

如何从输入文本重命名上传文件

2 个答案: