File uploading in django

Question

This is my code :

<form method="post" enctype="multipart/form-data">{% csrf_token %}

<input type="file" name="myfile">
<button type="submit">Upload</button>
</form>

{% if uploaded_file_url %}
<p>File uploaded at: <a href="{{ uploaded_file_url }}">{{ uploaded_file_url }}</a></p>
{% endif %}

How do I add a file and save it in media directory of application in Django project?

Answer 1

view.py from https://simpleisbetterthancomplex.com/tutorial/2016/08/01/how-to-upload-files-with-django.html should work for you !

def simple_upload(request):
    if request.method == 'POST' and request.FILES['myfile']:
        myfile = request.FILES['myfile']
        fs = FileSystemStorage()
        filename = fs.save(myfile.name, myfile) # saves the file to `media` folder
        uploaded_file_url = fs.url(filename) # gets the url
        return render(request, 'core/simple_upload.html', {
            'uploaded_file_url': uploaded_file_url
        })
    return render(request, 'core/simple_upload.html')

Answer 2

File Uploads are covered in the Django Documentation.

There are slight differences depending on if you're trying to upload a file to a Model that got a FileField or ImageField, or if you just simply want to upload a file to your server that does not belong to any model using the Form class.

Please notice, Django have a Form class (Docs) that help you generate forms and handle the POST request with validation and so on. Use this class instead of writing your own HTML code.

Upload File Without Model (Docs)

# forms.py
from django import forms

class UploadFileForm(forms.Form):
    title = forms.CharField(max_length=50)
    file = forms.FileField()

# views.py
from django.http import HttpResponseRedirect
from django.shortcuts import render
from .forms import UploadFileForm

def handle_uploaded_file(f):
    with open('some/file/name.txt', 'wb+') as destination:
        for chunk in f.chunks():
            destination.write(chunk)

def upload_file(request):
    if request.method == 'POST':
        form = UploadFileForm(request.POST, request.FILES)
        if form.is_valid():
            handle_uploaded_file(request.FILES['file'])
            return HttpResponseRedirect('/success/url/')
    else:
        form = UploadFileForm()
    return render(request, 'upload.html', {'form': form})

Upload File With Model (Docs)

# views.py
from django.http import HttpResponseRedirect
from django.shortcuts import render
from .forms import ModelFormWithFileField

def upload_file(request):
    if request.method == 'POST':
        form = ModelFormWithFileField(request.POST, request.FILES)
        if form.is_valid():
            # file is saved
            form.save()
            return HttpResponseRedirect('/success/url/')
    else:
        form = ModelFormWithFileField()
    return render(request, 'upload.html', {'form': form})