mirror of
https://github.com/django/django.git
synced 2025-10-25 14:46:09 +00:00
82 lines
2.7 KiB
Plaintext
82 lines
2.7 KiB
Plaintext
======================================
|
|
JavaScript customizations in the admin
|
|
======================================
|
|
|
|
.. _admin-javascript-inline-form-events:
|
|
|
|
Inline form events
|
|
==================
|
|
|
|
You may want to execute some JavaScript when an inline form is added or removed
|
|
in the admin change form. The ``formset:added`` and ``formset:removed`` jQuery
|
|
events allow this. The event handler is passed three arguments:
|
|
|
|
* ``event`` is the ``jQuery`` event.
|
|
* ``$row`` is the newly added (or removed) row.
|
|
* ``formsetName`` is the formset the row belongs to.
|
|
|
|
The event is fired using the :ref:`django.jQuery namespace
|
|
<contrib-admin-jquery>`.
|
|
|
|
In your custom ``change_form.html`` template, extend the
|
|
``admin_change_form_document_ready`` block and add the event listener code:
|
|
|
|
.. code-block:: html+django
|
|
|
|
{% extends 'admin/change_form.html' %}
|
|
{% load static %}
|
|
|
|
{% block admin_change_form_document_ready %}
|
|
{{ block.super }}
|
|
<script type="text/javascript" src="{% static 'app/formset_handlers.js' %}"></script>
|
|
{% endblock %}
|
|
|
|
.. snippet:: javascript
|
|
:filename: app/static/app/formset_handlers.js
|
|
|
|
(function($) {
|
|
$(document).on('formset:added', function(event, $row, formsetName) {
|
|
if (formsetName == 'author_set') {
|
|
// Do something
|
|
}
|
|
});
|
|
|
|
$(document).on('formset:removed', function(event, $row, formsetName) {
|
|
// Row removed
|
|
});
|
|
})(django.jQuery);
|
|
|
|
Two points to keep in mind:
|
|
|
|
* The JavaScript code must go in a template block if you are inheriting
|
|
``admin/change_form.html`` or it won't be rendered in the final HTML.
|
|
* ``{{ block.super }}`` is added because Django's
|
|
``admin_change_form_document_ready`` block contains JavaScript code to handle
|
|
various operations in the change form and we need that to be rendered too.
|
|
|
|
Sometimes you'll need to work with ``jQuery`` plugins that are not registered
|
|
in the ``django.jQuery`` namespace. To do that, simply change how the code
|
|
listens for events. Instead of wrapping the listener in the ``django.jQuery``
|
|
namespace, just listen to the event triggered from there. For example:
|
|
|
|
.. code-block:: html+django
|
|
|
|
{% extends 'admin/change_form.html' %}
|
|
{% load static %}
|
|
|
|
{% block admin_change_form_document_ready %}
|
|
{{ block.super }}
|
|
<script type="text/javascript" src="{% static 'app/unregistered_handlers.js' %}"></script>
|
|
{% endblock %}
|
|
|
|
.. snippet:: javascript
|
|
:filename: app/static/app/unregistered_handlers.js
|
|
|
|
django.jQuery(document).on('formset:added', function(event, $row, formsetName) {
|
|
// Row added
|
|
});
|
|
|
|
django.jQuery(document).on('formset:removed', function(event, $row, formsetName) {
|
|
// Row removed
|
|
});
|