============================= Django Zappa File Widget

Django Admin File Wiget for django-zappa based admin panels

Quickstart

Install Django Zappa File Widget::

pip install zappa-file-widget

Then use it in a project::

settings.py

INSTALLED_APPS += "zappa_file_widget"

models.py

from django.db import models


class Order(models.Model):
    attachment = models.FileField(upload_to="media/") # file size < 1 MB
    ordered_by = models.CharField(max_length=20)

    def __unicode__(self):
        return unicode(self.attachment)

admin.py

from django import forms
from django.contrib import admin

from zappa_file_widget.file_widget import FileWidget
from django_custom_admin.models import Order


class OrderForm(forms.ModelForm):
    class Meta:
        widgets = {
            'attachment': FileWidget(), 
        }


class OrderAdmin(admin.ModelAdmin):
    form = OrderForm


admin.site.register(Order, OrderAdmin)

Zappa URL Widget:

As AWS API Gateway has char limit on request payload we can't send a file size more that 1 MB. We have implemented client size solution to upload files direct to s3 and save the URL in Server

models.py

from django.db import models


class Order(models.Model):
    attachement2 = models.URLField() # file size >= 1 MB
    ordered_by = models.CharField(max_length=20)

    def __unicode__(self):
        return unicode(self.attachment)

admin.py

from django import forms
from django.contrib import admin

from zappa_file_widget.url_widget import URLWidget
from django_custom_admin.models import Order


class OrderForm(forms.ModelForm):
    class Meta:
        widgets = {
            'attachment2':  URLWidget(upload_to="child_profile_pic/"), 
        }


class OrderAdmin(admin.ModelAdmin):
    form = OrderForm


admin.site.register(Order, OrderAdmin)

Sample S3 Bucket ACLs to support Uploads from java script sdk / clients

<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
    <CORSRule>
        <AllowedOrigin>*</AllowedOrigin>
        <AllowedMethod>GET</AllowedMethod>
        <MaxAgeSeconds>3000</MaxAgeSeconds>
        <AllowedHeader>Authorization</AllowedHeader>
    </CORSRule>
    <CORSRule>
        <AllowedOrigin>*</AllowedOrigin>
        <AllowedMethod>HEAD</AllowedMethod>
        <AllowedMethod>GET</AllowedMethod>
        <AllowedMethod>PUT</AllowedMethod>
        <AllowedMethod>POST</AllowedMethod>
        <AllowedMethod>DELETE</AllowedMethod>
        <ExposeHeader>ETag</ExposeHeader>
        <ExposeHeader>x-amz-meta-custom-header</ExposeHeader>
        <AllowedHeader>*</AllowedHeader>
    </CORSRule>
</CORSConfiguration>

Common Configuration:

settings.py

AWS_ACCESS_KEY_ID = os.environ.get("AWS_ACCESS_KEY_ID")
AWS_SECRET_ACCESS_KEY = os.environ.get("AWS_SECRET_ACCESS_KEY")
AWS_CLOUDFRONT_DOMAIN = os.environ.get("AWS_CLOUDFRONT_DOMAIN")
AWS_STORAGE_BUCKET_NAME = os.environ.get("AWS_STORAGE_BUCKET_NAME")

• Follow https://www.caktusgroup.com/blog/2014/11/10/Using-Amazon-S3-to-store-your-Django-sites-static-and-media-files/ to Configure S3 Static / Media storage files
• Follow http://stackoverflow.com/questions/31357353/using-cloudfront-with-django-s3boto to enable cloudfront for your static / media storage

Example:

git clone https://github.com/anush0247/zappa-file-widget
cd zappa-file-widget/example
mkvirtualenv zappa_file_widget
pip install -r requirements.txt
python manage.py migrate
python manage.py createsuperuser
python manage.py runserver

Point your browser at : http://127.0.0.1:8000/admin/example/order/

Other Projects:

• https://github.com/anush0247/django-fine-uploader-s3

Credits

Tools used in rendering this package:

• https://github.com/audreyr/cookiecutter
• https://github.com/pydanny/cookiecutter-djangopackage