Make sure that:
The environment variable DJANGO_SETTINGS_MODULE is set to a fully-qualified Python module (i.e. “mysite.settings”).
Said module is on sys.path
(import mysite.settings
should work).
The module doesn’t contain syntax errors (of course).
If you’re using mod_python but not using Django’s request handler,
you’ll need to work around a mod_python bug related to the use of
SetEnv
; before you import anything from Django you’ll need to do
the following:
os.environ.update(req.subprocess_env)
(where req
is the mod_python request object).
We happen to think our template engine is the best thing since chunky bacon, but we recognize that choosing a template language runs close to religion. There’s nothing about Django that requires using the template language, so if you’re attached to ZPT, Cheetah, or whatever, feel free to use those.
Nope. Just like the template system, the model/database layer is decoupled from the rest of the framework.
The one exception is: If you use a different database library, you won’t get to use Django’s automatically-generated admin site. That app is coupled to the Django database layer.
Using a FileField
or an
ImageField
in a model takes a few steps:
MEDIA_ROOT
as
the full path to a directory where you’d like Django to store uploaded
files. (For performance, these files are not stored in the database.)
Define MEDIA_URL
as the base public URL of that directory.
Make sure that this directory is writable by the Web server’s user
account.FileField
or
ImageField
to your model, making sure to
define the upload_to
option to tell
Django to which subdirectory of MEDIA_ROOT
it should upload
files.MEDIA_ROOT
). You’ll most likely want to use the
convenience url
attribute provided by
Django. For example, if your ImageField
is
called mug_shot
, you can get the absolute path to your image in a
template with {{ object.mug_shot.url }}
.Sometimes your templates just all need the same thing. A common example would be dynamically-generated menus. At first glance, it seems logical to simply add a common dictionary to the template context.
The correct solution is to use a RequestContext
. Details on how to do this
are here: Subclassing Context: RequestContext.
Nov 29, 2016