From 36686cad13e7483699f224b16c9b7722c969f355 Mon Sep 17 00:00:00 2001
From: Max Arnold <lwarxx@gmail.com>
Date: Thu, 12 Jul 2012 22:40:24 +0700
Subject: [PATCH 1/3] add View.head() method at runtime (should fix
 AttributeError: object has no attribute 'get')

---
 djangorestframework/compat.py | 35 +++++++++++++++++++++++++++++++++--
 1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/djangorestframework/compat.py b/djangorestframework/compat.py
index 83d26f1ff..11f24b867 100644
--- a/djangorestframework/compat.py
+++ b/djangorestframework/compat.py
@@ -68,12 +68,41 @@ except ImportError:
 # django.views.generic.View (Django >= 1.3)
 try:
     from django.views.generic import View
+    from django.utils.decorators import classonlymethod
+    from django.utils.functional import update_wrapper
+
     if not hasattr(View, 'head'):
         # First implementation of Django class-based views did not include head method
         # in base View class - https://code.djangoproject.com/ticket/15668
         class ViewPlusHead(View):
-            def head(self, request, *args, **kwargs):
-                return self.get(request, *args, **kwargs)
+            @classonlymethod
+            def as_view(cls, **initkwargs):
+                """
+                Main entry point for a request-response process.
+                """
+                # sanitize keyword arguments
+                for key in initkwargs:
+                    if key in cls.http_method_names:
+                        raise TypeError(u"You tried to pass in the %s method name as a "
+                                        u"keyword argument to %s(). Don't do that."
+                                        % (key, cls.__name__))
+                    if not hasattr(cls, key):
+                        raise TypeError(u"%s() received an invalid keyword %r" % (
+                            cls.__name__, key))
+
+                def view(request, *args, **kwargs):
+                    self = cls(**initkwargs)
+                    if hasattr(self, 'get') and not hasattr(self, 'head'):
+                        self.head = self.get
+                    return self.dispatch(request, *args, **kwargs)
+
+                # take name and docstring from class
+                update_wrapper(view, cls, updated=())
+
+                # and possible attributes set by decorators
+                # like csrf_exempt from dispatch
+                update_wrapper(view, cls.dispatch, assigned=())
+                return view
         View = ViewPlusHead
 
 except ImportError:
@@ -121,6 +150,8 @@ except ImportError:
 
             def view(request, *args, **kwargs):
                 self = cls(**initkwargs)
+                if hasattr(self, 'get') and not hasattr(self, 'head'):
+                    self.head = self.get
                 return self.dispatch(request, *args, **kwargs)
 
             # take name and docstring from class

From fe262ef3537fa67ecda374825a295ff854f027a3 Mon Sep 17 00:00:00 2001
From: Max Arnold <lwarxx@gmail.com>
Date: Thu, 12 Jul 2012 23:12:09 +0700
Subject: [PATCH 2/3] patch View.head() only for django < 1.4

---
 djangorestframework/compat.py | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/djangorestframework/compat.py b/djangorestframework/compat.py
index 11f24b867..b5858a826 100644
--- a/djangorestframework/compat.py
+++ b/djangorestframework/compat.py
@@ -65,13 +65,14 @@ except ImportError:
             environ.update(request)
             return WSGIRequest(environ)
 
-# django.views.generic.View (Django >= 1.3)
+# django.views.generic.View (1.3 <= Django < 1.4)
 try:
     from django.views.generic import View
-    from django.utils.decorators import classonlymethod
-    from django.utils.functional import update_wrapper
 
-    if not hasattr(View, 'head'):
+    if django.VERSION < (1, 4):
+        from django.utils.decorators import classonlymethod
+        from django.utils.functional import update_wrapper
+
         # First implementation of Django class-based views did not include head method
         # in base View class - https://code.djangoproject.com/ticket/15668
         class ViewPlusHead(View):

From 650c04662dc4b47f285601fefad3b71afc7f6461 Mon Sep 17 00:00:00 2001
From: Max Arnold <lwarxx@gmail.com>
Date: Thu, 12 Jul 2012 23:13:04 +0700
Subject: [PATCH 3/3] remove remaining head() method

---
 djangorestframework/compat.py | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/djangorestframework/compat.py b/djangorestframework/compat.py
index b5858a826..b86810223 100644
--- a/djangorestframework/compat.py
+++ b/djangorestframework/compat.py
@@ -186,9 +186,6 @@ except ImportError:
             #)
             return http.HttpResponseNotAllowed(allowed_methods)
 
-        def head(self, request, *args, **kwargs):
-            return self.get(request, *args, **kwargs)
-
 # PUT, DELETE do not require CSRF until 1.4.  They should.  Make it better.
 if django.VERSION >= (1, 4):
     from django.middleware.csrf import CsrfViewMiddleware