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71 | """
Hacks for the Django 1.0/1.0.2 releases.
"""
from django.conf import settings
from django.db import models
from django.db.models.loading import AppCache, cache
class Hacks:
def set_installed_apps(self, apps):
"""
Sets Django's INSTALLED_APPS setting to be effectively the list passed in.
"""
# Make sure it's a list.
apps = list(apps)
# This function will be monkeypatched into place.
def new_get_apps():
return apps
# Monkeypatch in!
models.get_apps_old, models.get_apps = models.get_apps, new_get_apps
settings.INSTALLED_APPS, settings.OLD_INSTALLED_APPS = (
apps,
settings.INSTALLED_APPS,
)
self._redo_app_cache()
def reset_installed_apps(self):
"""
Undoes the effect of set_installed_apps.
"""
models.get_apps = models.get_apps_old
settings.INSTALLED_APPS = settings.OLD_INSTALLED_APPS
self._redo_app_cache()
def _redo_app_cache(self):
"""
Used to repopulate AppCache after fiddling with INSTALLED_APPS.
"""
a = AppCache()
a.loaded = False
a._populate()
def clear_app_cache(self):
"""
Clears the contents of AppCache to a blank state, so new models
from the ORM can be added.
"""
self.old_app_models = cache.app_models
cache.app_models = {}
def unclear_app_cache(self):
"""
Reversed the effects of clear_app_cache.
"""
cache.app_models = self.old_app_models
def repopulate_app_cache(self):
"""
Rebuilds AppCache with the real model definitions.
"""
cache._populate()
|
