At 04:22 PM 10/24/01 -0400, Geoff Talvola wrote:
>That brings up the larger question of "where do I put resources that are
>global to the application?"
>
>I usually just put stuff like that into regular Python modules. Then
>whenever I need it, I just import the module (at which time it gets
>initialized) and use it. Sometimes I put in some helper methods into
>SitePage to make it more convenient to use within servlets.
>
>But the compelling reason to put this directly into Application is so that
>it can shutdown cleanly. I haven't needed that up till now.
>
>So perhaps there needs to be a more general way to register stuff into
>Application so that it initializes when the app starts up, is available
>throughout the whole application, AND shuts down cleanly when the
>appserver is stopped.
>
>But I still agree with Clark that specific stuff like this doesn't really
>belong directly in Application; rather, there needs to be a plug-in
>mechanism so that it's easy to add stuff like this into Application via a
>configuration setting. Like perhaps in Application.config, there could be
>a list of Python files with mixins that automatically get applied to
>Application. Or a way to substitute your own derived version of
>Application instead of the original Application.
(following up on my own message) And as others have suggested, a Kit is the
place to put this db code.
If the Kit's job is to simply augment Application with new methods, then it
may be as simple as a DbMixin.py module that defines a DbMixin class with
the new methods, a Properties.py file like the other Kits, and an
__init__.py like this (completely untested):
# This function gets called by the app server during initialization
def InstallInWebKit(appServer):
# See if DbKit was enabled
if appServer.setting('EnableDbKit', 0):
# Mix in our DbMixin class into Application
from WebKit.Application import Application
from DbMixin import DbMixin
from MiscUtils.MixIn import MixIn
MixIn(Application, DbMixin)
--
- Geoff Talvola
[EMAIL PROTECTED]
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