Introduce dynamic scope_path regexps
Instead of relying on scope_path's being "one slash deep", we should
instead allow for either:
1. scope_paths that have a pre-defined depth
2. scope_paths that can be arbitrarily deep
We achieve 1 by setting an entities scope_logic to another logic
module. We then recursively call getScopeDepth until we get to the
topmost entity (that is, an unscoped entity).
A little different is the solution to 2, since some entities can have
an arbitrarily deep scope (such as Documents), we need to have some
way of signaling this to getScopePattern. A clean solution is to
return None, rather than a number. If None is returned, the
SCOPE_PATH_ARG_PATTERN is returned as regexp instead, which will
match an arbitrarily deeply nested scope.
The solution for 2 requires that we return None somewhere in the
scope_logic chain, the most straight forward method to do so is to
override getScopeDepth anywhere such a scope is needed and make it
return None. A more elegant solution however, is to set the
scope_logic to that module in all entities that require it.
Patch by: Sverre Rabbelier
from django.contrib.admin.options import ModelAdmin, HORIZONTAL, VERTICAL
from django.contrib.admin.options import StackedInline, TabularInline
from django.contrib.admin.sites import AdminSite, site
def autodiscover():
"""
Auto-discover INSTALLED_APPS admin.py modules and fail silently when
not present. This forces an import on them to register any admin bits they
may want.
"""
import imp
from django.conf import settings
for app in settings.INSTALLED_APPS:
# For each app, we need to look for an admin.py inside that app's
# package. We can't use os.path here -- recall that modules may be
# imported different ways (think zip files) -- so we need to get
# the app's __path__ and look for admin.py on that path.
# Step 1: find out the app's __path__ Import errors here will (and
# should) bubble up, but a missing __path__ (which is legal, but weird)
# fails silently -- apps that do weird things with __path__ might
# need to roll their own admin registration.
try:
app_path = __import__(app, {}, {}, [app.split('.')[-1]]).__path__
except AttributeError:
continue
# Step 2: use imp.find_module to find the app's admin.py. For some
# reason imp.find_module raises ImportError if the app can't be found
# but doesn't actually try to import the module. So skip this app if
# its admin.py doesn't exist
try:
imp.find_module('admin', app_path)
except ImportError:
continue
# Step 3: import the app's admin file. If this has errors we want them
# to bubble up.
__import__("%s.admin" % app)