{% extends "model-scope.html" %} {% load static sekizai_tags djng_tags tutorial_tags %} {% block addtoblock %} {{ block.super }} {% addtoblock "css" %}{% endaddtoblock %} {% addtoblock "js" %}{% endaddtoblock %} {% addtoblock "js" %}{% endaddtoblock %} {% add_data "ng-requires" "djng.fileupload" %} {% addtoblock "js" %}{% endaddtoblock %} {% add_data "ng-requires" "djng.urls" %} {% addtoblock "ng-config" %}['$httpProvider', function($httpProvider) { $httpProvider.defaults.headers.common['X-Requested-With'] = 'XMLHttpRequest'; $httpProvider.defaults.headers.common['X-CSRFToken'] = '{{ csrf_token }}'; }]{% endaddtoblock %} {% endblock addtoblock %} {% block main-intro %}

Image and File Uploads

New in 1.1 Drag and drop images or files into a form

This example shows how to upload an image or file to the server using AngularJS with Ajax.

{% endblock main-intro %} {% block form_tag %}name="{{ form.form_name }}" djng-endpoint="." ng-model-options="{allowInvalid: true}" novalidate{% endblock %} {% block form_submission %}

{% endblock %} {% block form_foot %} {% verbatim %}
Scope:
subscribe_data = {{ subscribe_data | json }}
{% endverbatim %} {% endblock form_foot %} {% block main-tutorial %}

If we want to upload an image or file to the server through an Ajax request, we have to divide the submission into two steps. This is because browsers can not serialize submitted file payload to JSON. Instead, we first must upload the image or file to the server encoded as multipart/form-data. The server then creates a temporary copy of the uploaded image or file and returns a reference to it. This temporary reference is stored inside a hidden field of our form.

When the complete form is submitted by the client, only that reference to the temporary file will be sent through Ajax. The server then moves the previously uploaded copy of that file into its MEDIA_ROOT directory and stores its location inside a model field.

{% endblock main-tutorial %} {% block main-sample-code %} {% autoescape off %}
{% pygments "forms/image_file_upload.py" %}
{% pygments "views/image_file_upload.py" %}
{% pygments "tutorial/image-file-upload.html" %}
{% pygments "models/image_file_upload.py" %}
{% endautoescape %}

A form accepting files and images without a permanent storage does not make much sense. Therefore you normally would create a Django model using an django.models.ImageField and/or django.models.FileField. From this model, you can create a form inheriting from django.forms.ModelForm, as usual. Image and file fields then are replaced by their AngularJS enabled counterparts, enabling drag & drop and immediate image preview.
A sample implementation is shown in the last tab labeled Model.

{% endblock main-sample-code %}