On 8/17/06, Gary Wilson <[EMAIL PROTECTED]> wrote:
> IMO, the dependency checking is the easy part. In the README or
> something, I say MyCoolApp requires the admin app. It's the
> configuration settings of the admin app that's hairy.
That's what application documentation is for. In theory it's also
possible to use this mechanism to ensure that any additional settings
it requires exist in the project settings file and are non-empty;
something like
from django.conf import settings
try:
my_cool_app_setting = settings.COOL_APP_SETTING
except AttributeError:
dependency_errors.append("the setting 'COOL_APP_SETTING' must be
specified in the project's settings file in order to use this
application")
But as Malcolm has pointed out, the idea here is not to provide a
mechanism for automatically configuring applications -- it's to
provide a way for applications to specify the things they need.
> What do you mean a bit too much toward the app server? Isn't that what
> we are all doing with django? Building and serving blog apps and forum
> apps and news publishing apps and ...
In my mind, at least, an "app server" is a system whose job is to take
many different applications which may be written using wildly
different frameworks, or even no frameworks at all, and mediate
between them (assuming, for example, that they implement some common
interface for communication with the app server). WSGI is a good
example of this sort of thinking in the Python world -- the idea is
that it doesn't matter what you use to write your application, so long
as it exposes the appropriate WSGI-compliant interfaces for its
intended role.
That seems to be far and away a larger and more complex task than what
Django aims for -- yes, Django provides facilities for Django-based
applications to work with one another, but Django is first and
foremost a tool for _writing_ applications, not a tool for _running_
applications.
--
"May the forces of evil become confused on the way to your house."
-- George Carlin
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