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132 lines
4.9 KiB
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132 lines
4.9 KiB
Plaintext
===================================
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Managing static files (CSS, images)
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===================================
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Websites generally need to serve additional files such as images, JavaScript,
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or CSS. In Django, we refer to these files as "static files". Django provides
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:mod:`django.contrib.staticfiles` to help you manage them.
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This page describes how you can serve these static files.
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Configuring static files
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========================
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1. Make sure that ``django.contrib.staticfiles`` is included in your
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:setting:`INSTALLED_APPS`.
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2. In your settings file, define :setting:`STATIC_URL`, for example::
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STATIC_URL = '/static/'
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3. In your templates, either hardcode the url like
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``/static/my_app/myexample.jpg`` or, preferably, use the
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:ttag:`static<staticfiles-static>` template tag to build the URL for the given
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relative path by using the configured :setting:`STATICFILES_STORAGE` storage
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(this makes it much easier when you want to switch to a content delivery
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network (CDN) for serving static files).
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.. _staticfiles-in-templates:
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.. code-block:: html+django
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{% load staticfiles %}
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<img src="{% static "my_app/myexample.jpg" %}" alt="My image"/>
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4. Store your static files in a folder called ``static`` in your app. For
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example ``my_app/static/my_app/myimage.jpg``.
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.. admonition:: Serving the files
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In addition to these configuration steps, you'll also need to actually
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serve the static files.
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During development, this will be done automatically if you use
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:djadmin:`runserver` and :setting:`DEBUG` is set to ``True`` (see
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:func:`django.contrib.staticfiles.views.serve`).
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This method is **grossly inefficient** and probably **insecure**,
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so it is **unsuitable for production**.
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See :doc:`/howto/static-files/deployment` for proper strategies to serve
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static files in production environments.
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Your project will probably also have static assets that aren't tied to a
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particular app. In addition to using a ``static/`` directory inside your apps,
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you can define a list of directories (:setting:`STATICFILES_DIRS`) in your
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settings file where Django will also look for static files. For example::
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STATICFILES_DIRS = (
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os.path.join(BASE_DIR, "static"),
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'/var/www/static/',
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)
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See the documentation for the :setting:`STATICFILES_FINDERS` setting for
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details on how ``staticfiles`` finds your files.
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.. admonition:: Static file namespacing
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Now we *might* be able to get away with putting our static files directly
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in ``my_app/static/`` (rather than creating another ``my_app``
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subdirectory), but it would actually be a bad idea. Django will use the
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first static file it finds whose name matches, and if you had a static file
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with the same name in a *different* application, Django would be unable to
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distinguish between them. We need to be able to point Django at the right
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one, and the easiest way to ensure this is by *namespacing* them. That is,
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by putting those static files inside *another* directory named for the
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application itself.
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Serving files uploaded by a user
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================================
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During development, you can serve user-uploaded media files from
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:setting:`MEDIA_ROOT` using the :func:`django.contrib.staticfiles.views.serve`
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view. This is not suitable for production use! For some common deployment
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strategies, see :doc:`/howto/static-files/deployment`.
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For example, if your :setting:`MEDIA_URL` is defined as '/media/', you can do
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this by adding the following snippet to your urls.py::
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from django.conf import settings
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from django.conf.urls.static import static
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urlpatterns = patterns('',
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# ... the rest of your URLconf goes here ...
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) + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
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.. note::
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This helper function works only in debug mode and only if
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the given prefix is local (e.g. ``/static/``) and not a URL (e.g.
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``http://static.example.com/``).
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Deployment
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==========
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:mod:`django.contrib.staticfiles` provides a convenience management command
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for gathering static files in a single directory so you can serve them easily.
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1. Set the :setting:`STATIC_ROOT` setting to the directory from which you'd
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like to serve these files, for example::
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STATIC_ROOT = "/var/www/example.com/static/"
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2. Run the :djadmin:`collectstatic` management command::
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./manage.py collectstatic
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This will copy all files from your static folders into the
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:setting:`STATIC_ROOT` directory.
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3. Use a web server of your choice to serve the
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files. :doc:`/howto/static-files/deployment` covers some common deployment
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strategies for static files.
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Learn more
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==========
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This document has covered the basics and some common usage patterns. For
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complete details on all the settings, commands, template tags, and other pieces
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included in :mod:`django.contrib.staticfiles`, see :doc:`the staticfiles
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reference </ref/contrib/staticfiles>`.
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