Django 2.x resumable uploads
Project description
Django 2.x Resumable (django-resumable
)
django2-resumable
provides Django 2.1 backend stuff (e.g. ModelFields
, Forms
, staticfiles
)
to integrates resumable.js
in Django apps and admin.
This projects build on the original django-resumable
by jeanphix, which (afaik) it
is not maintained anymore, and does not support Django 2.x - main
reason why I ended up developing this in the first place (ed.)
ICYM
:
(from the documentation)
Resumable.js is a JavaScript library providing multiple simultaneous, stable and resumable uploads via the
HTML5 File API
.The library is designed to introduce fault-tolerance into the upload of large files through HTTP. This is done by splitting each file into small chunks. Then, whenever the upload of a chunk fails, uploading is retried until the procedure completes. This allows uploads to automatically resume uploading after a network connection is lost either locally or to the server. Additionally, it allows for users to pause, resume and even recover uploads without losing state because only the currently uploading chunks will be aborted, not the entire upload.
Resumable.js does not have any external dependencies other than the
HTML5 File API
. This is relied on for the ability to chunk files into smaller pieces. Currently, this means that support is widely available in to Firefox 4+, Chrome 11+, Safari 6+ and Internet Explorer 10+.
Installation
pip install django2-resumable
- Add
django2_resumable
to yourINSTALLED_APPS
How to use
Views
In order to enable asynchronous files upload files, you must define an endpoint that will deal with uploaded file chunks:
from django.urls import path, include
urlpatterns = [
path('resumable_upload/', include('django2_resumable.urls')),
]
By default, the resume-upload
view is provided with no restriction on the accesses
(i.e. no login_required
nor staff_member_required
).
To enable the view on restricted levels of permissions, urls should be modified accordingly:
from django.contrib.auth.views import login_required
# To enable view in AdminForm
from django.contrib.admin.views.decorators import staff_member_required
from django2_resumable.views import resumable_upload
from django.urls import path
urlpatterns = [
path('resumable-upload', login_required(resumable_upload),
name='resumable-upload'),
path('admin-resumable-upload', staff_member_required(resumable_upload),
name='admin-resumable-upload'),
]
Model
django2-resumable
provides a ResumableFileField
that can be easily
integrated in your Model class:
from django.db import models
from django2_resumable.fields import ResumableFileField
class MyModel(models.Model):
file = ResumableFileField(chunks_upload_to='resumable_chunks', **kwargs)
The ResumableFileField
field extends the default django.core.fields.FielField
by including
an additional parameter, namely chunks_upload_to
specifying the path in the MEDIA_ROOT
in which
temporary chunks will be uploaded. Once the upload is complete, the file will be
automatically moved to the upload_to
destination folder (if any).
Form
If you want to handle resumable upload within your forms,
you can use the FormResumableFileField
:
from django.forms import Form
from django2_resumable.forms import FormResumableFileField
class ResumableForm(Form):
file = FormResumableFileField()
It is as simple as that:
FormResumableFileField
simply extends the core django.forms.FileField
by injecting the
django_resumable.widgets.ResumableWidget
.
This widget is the default widget mapped by default to ResumableFileField
instances
(see django_resumable.fields.ResumableFileField.formfield
method).
Additional Settings
django2-resumable
comes with some extendable settings allowing for additional setup:
-
RESUMABLE_SUBDIR
: Directory inMEDIA_ROOT
in which chunks will be uploaded. This settings will be overriden by anychunks_upload_to
options specified at the time of definition ofResumableFileField
within Django Model. -
RESUMABLE_STORAGE
: (defaultdjango.core.files.storage.FileSystemStorage
) Django Storage class to be used to handle the uploads.
Project details
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