Fixed #12804 - regression with decorating admin views.

This is a BACKWARDS INCOMPATIBLE change, because it removes the flawed
'auto_adapt_to_methods' decorator, and replaces it with 'method_decorator'
which must be applied manually when necessary, as described in the 1.2
release notes.

For users of 1.1 and 1.0, this affects the decorators:

 * login_required
 * permission_required
 * user_passes_test

For those following trunk, this also affects:

 * csrf_protect
 * anything created with decorator_from_middleware 

If a decorator does not depend on the signature of the function it is
supposed to decorate (for example if it only does post-processing of the
result), it will not be affected.
 



git-svn-id: http://code.djangoproject.com/svn/django/trunk@12399 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/modeltests/test_client/views.py

@@ -7,6 +7,7 @@ from django.contrib.auth.decorators import login_required, permission_required
 from django.forms.forms import Form
 from django.forms import fields
 from django.shortcuts import render_to_response
+from django.utils.decorators import method_decorator
 
 def get_view(request):
     "A simple view that expects a GET request, and returns a rendered template"
@@ -147,14 +148,15 @@ def permission_protected_view(request):
 permission_protected_view = permission_required('modeltests.test_perm')(permission_protected_view)
 
 class _ViewManager(object):
+    @method_decorator(login_required)
     def login_protected_view(self, request):
         t = Template('This is a login protected test using a method. '
                      'Username is {{ user.username }}.',
                      name='Login Method Template')
         c = Context({'user': request.user})
         return HttpResponse(t.render(c))
-    login_protected_view = login_required(login_protected_view)
 
+    @method_decorator(permission_required('modeltests.test_perm'))
     def permission_protected_view(self, request):
         t = Template('This is a permission protected test using a method. '
                      'Username is {{ user.username }}. '
@@ -162,7 +164,6 @@ class _ViewManager(object):
                      name='Permissions Template')
         c = Context({'user': request.user})
         return HttpResponse(t.render(c))
-    permission_protected_view = permission_required('modeltests.test_perm')(permission_protected_view)
 
 _view_manager = _ViewManager()
 login_protected_method_view = _view_manager.login_protected_view