Whenever the app objects discussion is resuscitated, the following by yours truly may be of relevance:
http://github.com/mrts/plugit/tree/master As of now, settings handling is present. The SettingsUpdater class in plugit/settingshandler.py provides a high-level API for updating configuration files with Django settings.py format. The Django- specific use case (the project is not Django-related generally) is as follows. --- Suppose the app 'foo' needs to be enabled. During enabling, the app wants to register it's middleware and add a custom setting, 'FOO = 42'. $ cat settings.py MIDDLEWARE_CLASSES = ( 'django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', ) INSTALLED_APPS = ( 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', ) # imagine that user calls ./manage.py enable foo, among other things the following happens: $ python Python 2.5.2 (r252:60911, Oct 5 2008, 19:29:17) [GCC 4.3.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> from plugit.settingshandler import SettingsUpdater >>> updater = SettingsUpdater('settings.py') >>> new_settings = {'FOO': 42} >>> append_settings = {'MIDDLEWARE_CLASSES': 'foo.middleware.FooMiddleware', ... 'INSTALLED_APPS': 'foo'} >>> updater.update(new_settings, append_settings) >>> updater.save() True # and the result: $ cat settings.py MIDDLEWARE_CLASSES = ( 'django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'foo.middleware.FooMiddleware', ) INSTALLED_APPS = ( 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'foo', ) FOO = 42 --- Currently it's just a proof of concept and a little foray into lib2to3 capabilities. Without careful dependency handling it's not much useful. So, this is one way of handling the app installation and corresponding settings update problem. Hopefully this demonstrates that settings updates are feasible and robust and perhaps sparks ideas that are directly useful in Django context. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django developers" group. To post to this group, send email to django-developers@googlegroups.com To unsubscribe from this group, send email to django-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/django-developers?hl=en -~----------~----~----~----~------~----~------~--~---
