1 files changed, 33 insertions, 0 deletions
diff --git a/google_appengine/lib/django/django/utils/decorators.py b/google_appengine/lib/django/django/utils/decorators.py
new file mode 100755
index 0000000..1c6cc8c
--- /dev/null
+++ b/google_appengine/lib/django/django/utils/decorators.py
@@ -0,0 +1,33 @@
+"Functions that help with dynamically creating decorators for views."
+
+def decorator_from_middleware(middleware_class):
+    """
+    Given a middleware class (not an instance), returns a view decorator. This
+    lets you use middleware functionality on a per-view basis.
+    """
+    def _decorator_from_middleware(view_func, *args, **kwargs):
+        middleware = middleware_class(*args, **kwargs)
+        def _wrapped_view(request, *args, **kwargs):
+            if hasattr(middleware, 'process_request'):
+                result = middleware.process_request(request)
+                if result is not None:
+                    return result
+            if hasattr(middleware, 'process_view'):
+                result = middleware.process_view(request, view_func, *args, **kwargs)
+                if result is not None:
+                    return result
+            try:
+                response = view_func(request, *args, **kwargs)
+            except Exception, e:
+                if hasattr(middleware, 'process_exception'):
+                    result = middleware.process_exception(request, e)
+                    if result is not None:
+                        return result
+                raise
+            if hasattr(middleware, 'process_response'):
+                result = middleware.process_response(request, response)
+                if result is not None:
+                    return result
+            return response
+        return _wrapped_view
+    return _decorator_from_middleware