Simple project to upload multiple files with a Django form, WITHOUT JavaScript or Ajax.
Demonstrating how to link a model to a form, and how to return a human-readable filename whenever a model is printed:
### models.py
from django.db import models
import os
class fileentry(models.Model):
file = models.FileField()
uploaddate = models.DateTimeField(auto_now_add=True)
def __str__(self):
return os.path.basename(self.file.name)
This code is mostly unused; I haven't found a way to save individual form files from request.FILES yet. But having the code here demonstrates how to link a model to a form.
Enabling the multiple attribute in the form input, without having to manually display the form in the template:
### forms.py
from django import forms
from .models import fileentry
class fileform(forms.ModelForm):
label = '' ### This hides the label next to the "Browse..." button
class Meta:
model = fileentry ### Specify the model to connect to
fields = ('file', ) ### This trailing comma is neccessary
widgets = {
'file': ### This is what allows you to select multiple files
forms.ClearableFileInput(attrs={'multiple': True})}
The trick here is looping over request.FILES.getlist('file'). Trying to loop over request.FILES only returns the last file.
### views.py
from django.shortcuts import render
from .forms import fileform
def upload(request):
context = {'form': None, 'last': None}
if request.method == 'POST':
form = fileform(request.POST, request.FILES)
if form.is_valid(): ### Display a list of the last files uploaded
context['last'] = '\n'.join([f.name for f in request.FILES.getlist('file')])
for file in request.FILES.getlist('file'):
print(file.name)
with open("uploads/{}".format(file.name), 'wb+') as f:
for chunk in file.chunks(): ### Write in chunks; large files won't use a lot of RAM
f.write(chunk)
f.close()
else:
form = fileform()
context['form'] = form
return render(request, 'upload/index.html', context)
What is important here is setting enctype="multipart/form-data".
### templates/upload/index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Upload</title>
</head>
<body>
<p><strong><span>Files:</span></strong></p>
<form method="post" enctype="multipart/form-data">
{% csrf_token %}
{{ form.file.errors }}
{{ form.file }}
<button type="submit">Upload</button>
</form>
<p><strong><span>Last upload:</span></strong></p>
<pre>{{ last }}</pre>
</body>
</html>