reverse takes request as a kwarg for compatibility with django's reverse

djangorestframework/compat.py

@@ -214,18 +214,15 @@ else:
     REASON_NO_CSRF_COOKIE = "CSRF cookie not set."
     REASON_BAD_TOKEN = "CSRF token missing or incorrect."
 
-
     def _get_failure_view():
         """
         Returns the view to be used for CSRF rejections
         """
         return get_callable(settings.CSRF_FAILURE_VIEW)
 
-
     def _get_new_csrf_key():
         return hashlib.md5("%s%s" % (randrange(0, _MAX_CSRF_KEY), settings.SECRET_KEY)).hexdigest()
 
-
     def get_token(request):
         """
         Returns the the CSRF token required for a POST form. The token is an
@@ -239,7 +236,6 @@ else:
         request.META["CSRF_COOKIE_USED"] = True
         return request.META.get("CSRF_COOKIE", None)
 
-
     def _sanitize_token(token):
         # Allow only alphanum, and ensure we return a 'str' for the sake of the post
         # processing middleware.
@@ -432,6 +428,7 @@ try:
 except ImportError:
     yaml = None
 
+
 import unittest
 try:
     import unittest.skip
@@ -458,13 +455,6 @@ except ImportError: # python < 2.7
 
     unittest.skip = skip
 
-# reverse_lazy (Django 1.4 onwards)
-try:
-    from django.core.urlresolvers import reverse_lazy
-except:
-    from django.core.urlresolvers import reverse
-    from django.utils.functional import lazy
-    reverse_lazy = lazy(reverse, str)
 
 # xml.etree.parse only throws ParseError for python >= 2.7
 try:

djangorestframework/resources.py

@@ -10,7 +10,8 @@ from djangorestframework.utils import as_tuple
 
 class BaseResource(Serializer):
     """
-    Base class for all Resource classes, which simply defines the interface they provide.
+    Base class for all Resource classes, which simply defines the interface
+    they provide.
     """
     fields = None
     include = None
@@ -19,11 +20,13 @@ class BaseResource(Serializer):
     def __init__(self, view=None, depth=None, stack=[], **kwargs):
         super(BaseResource, self).__init__(depth, stack, **kwargs)
         self.view = view
+        self.request = view.request
 
     def validate_request(self, data, files=None):
         """
         Given the request content return the cleaned, validated content.
-        Typically raises a :exc:`response.ErrorResponse` with status code 400 (Bad Request) on failure.
+        Typically raises a :exc:`response.ErrorResponse` with status code 400
+        (Bad Request) on failure.
         """
         return data
 
@@ -37,7 +40,8 @@ class BaseResource(Serializer):
 class Resource(BaseResource):
     """
     A Resource determines how a python object maps to some serializable data.
-    Objects that a resource can act on include plain Python object instances, Django Models, and Django QuerySets.
+    Objects that a resource can act on include plain Python object instances,
+    Django Models, and Django QuerySets.
     """
 
     # The model attribute refers to the Django Model which this Resource maps to.
@@ -355,7 +359,9 @@ class ModelResource(FormResource):
                         instance_attrs[param] = attr
 
                 try:
-                    return reverse(self.view_callable[0], self.view.request, kwargs=instance_attrs)
+                    return reverse(self.view_callable[0],
+                                   kwargs=instance_attrs,
+                                   request=self.view.request)
                 except NoReverseMatch:
                     pass
         raise _SkipField

djangorestframework/reverse.py

@@ -2,22 +2,19 @@
 Provide reverse functions that return fully qualified URLs
 """
 from django.core.urlresolvers import reverse as django_reverse
-from djangorestframework.compat import reverse_lazy as django_reverse_lazy
+from django.utils.functional import lazy
 
 
 def reverse(viewname, request, *args, **kwargs):
     """
-    Do the same as `django.core.urlresolvers.reverse` but using
+    Same as `django.core.urlresolvers.reverse`, but optionally takes a request
-    *request* to build a fully qualified URL.
+    and returns a fully qualified URL, using the request to get the base URL.
     """
+    request = kwargs.pop('request', None)
     url = django_reverse(viewname, *args, **kwargs)
+    if request:
         return request.build_absolute_uri(url)
+    return url
 
 
-def reverse_lazy(viewname, request, *args, **kwargs):
+reverse_lazy = lazy(reverse, str)
-    """
-    Do the same as `django.core.urlresolvers.reverse_lazy` but using
-    *request* to build a fully qualified URL.
-    """
-    url = django_reverse_lazy(viewname, *args, **kwargs)
-    return request.build_absolute_uri(url)

djangorestframework/tests/reverse.py

@@ -15,7 +15,7 @@ class MyView(View):
     renderers = (JSONRenderer, )
 
     def get(self, request):
-        return reverse('myview', request)
+        return reverse('myview', request=request)
 
 urlpatterns = patterns('',
     url(r'^myview$', MyView.as_view(), name='myview'),

examples/blogpost/resources.py

@@ -12,7 +12,9 @@ class BlogPostResource(ModelResource):
     ordering = ('-created',)
 
     def comments(self, instance):
-        return reverse('comments', request, kwargs={'blogpost': instance.key})
+        return reverse('comments',
+                       kwargs={'blogpost': instance.key},
+                       request=self.request)
 
 
 class CommentResource(ModelResource):
@@ -24,4 +26,6 @@ class CommentResource(ModelResource):
     ordering = ('-created',)
 
     def blogpost(self, instance):
-        return reverse('blog-post', request, kwargs={'key': instance.blogpost.key})
+        return reverse('blog-post',
+                       kwargs={'key': instance.blogpost.key},
+                       request=self.request)

examples/mixin/urls.py

@@ -9,16 +9,17 @@ from django.conf.urls.defaults import patterns, url
 
 class ExampleView(ResponseMixin, View):
     """An example view using Django 1.3's class based views.
-    Uses djangorestframework's RendererMixin to provide support for multiple output formats."""
+    Uses djangorestframework's RendererMixin to provide support for multiple
+    output formats."""
     renderers = DEFAULT_RENDERERS
 
     def get(self, request):
+        url = reverse('mixin-view', request=request)
         response = Response(200, {'description': 'Some example content',
-                                  'url': reverse('mixin-view', request)})
+                                  'url': url})
         return self.render(response)
 
 
 urlpatterns = patterns('',
     url(r'^$', ExampleView.as_view(), name='mixin-view'),
 )
-

examples/modelresourceexample/models.py

@@ -2,6 +2,7 @@ from django.db import models
 
 MAX_INSTANCES = 10
 
+
 class MyModel(models.Model):
     foo = models.BooleanField()
     bar = models.IntegerField(help_text='Must be an integer.')
@@ -15,5 +16,3 @@ class MyModel(models.Model):
         super(MyModel, self).save(*args, **kwargs)
         while MyModel.objects.all().count() > MAX_INSTANCES:
             MyModel.objects.all().order_by('-created')[0].delete()
-
-

examples/modelresourceexample/resources.py

@@ -1,6 +1,7 @@
 from djangorestframework.resources import ModelResource
 from modelresourceexample.models import MyModel
 
+
 class MyModelResource(ModelResource):
     model = MyModel
     fields = ('foo', 'bar', 'baz', 'url')

examples/modelresourceexample/urls.py

@@ -4,5 +4,5 @@ from modelresourceexample.resources import MyModelResource
 
 urlpatterns = patterns('',
     url(r'^$',          ListOrCreateModelView.as_view(resource=MyModelResource), name='model-resource-root'),
-    url(r'^(?P<pk>[0-9]+)/$', InstanceModelView.as_view(resource=MyModelResource)),
+    url(r'^(?P<id>[0-9]+)/$', InstanceModelView.as_view(resource=MyModelResource), name='model-resource-instance'),
 )

examples/objectstore/views.py

@@ -28,6 +28,20 @@ def remove_oldest_files(dir, max_files):
     [os.remove(path) for path in ctime_sorted_paths[max_files:]]
 
 
+def get_filename(key):
+    """
+    Given a stored object's key returns the file's path.
+    """
+    return os.path.join(OBJECT_STORE_DIR, key)
+
+
+def get_file_url(key, request):
+    """
+    Given a stored object's key returns the URL for the object.
+    """
+    return reverse('stored-object', kwargs={'key': key}, request=request)
+
+
 class ObjectStoreRoot(View):
     """
     Root of the Object Store API.
@@ -38,20 +52,24 @@ class ObjectStoreRoot(View):
         """
         Return a list of all the stored object URLs. (Ordered by creation time, newest first)
         """
-        filepaths = [os.path.join(OBJECT_STORE_DIR, file) for file in os.listdir(OBJECT_STORE_DIR) if not file.startswith('.')]
+        filepaths = [os.path.join(OBJECT_STORE_DIR, file)
+                     for file in os.listdir(OBJECT_STORE_DIR)
+                     if not file.startswith('.')]
         ctime_sorted_basenames = [item[0] for item in sorted([(os.path.basename(path), os.path.getctime(path)) for path in filepaths],
                                                              key=operator.itemgetter(1), reverse=True)]
-        return [reverse('stored-object', request, kwargs={'key':key}) for key in ctime_sorted_basenames]
+        return [get_file_url(key, request) for key in ctime_sorted_basenames]
 
     def post(self, request):
         """
         Create a new stored object, with a unique key.
         """
         key = str(uuid.uuid1())
-        pathname = os.path.join(OBJECT_STORE_DIR, key)
+        filename = get_filename(key)
-        pickle.dump(self.CONTENT, open(pathname, 'wb'))
+        pickle.dump(self.CONTENT, open(filename, 'wb'))
+
         remove_oldest_files(OBJECT_STORE_DIR, MAX_FILES)
-        return Response(status.HTTP_201_CREATED, self.CONTENT, {'Location': reverse('stored-object', request, kwargs={'key':key})})
+        url = get_file_url(key, request)
+        return Response(status.HTTP_201_CREATED, self.CONTENT, {'Location': url})
 
 
 class StoredObject(View):
@@ -59,29 +77,30 @@ class StoredObject(View):
     Represents a stored object.
     The object may be any picklable content.
     """
-
     def get(self, request, key):
         """
-        Return a stored object, by unpickling the contents of a locally stored file.
+        Return a stored object, by unpickling the contents of a locally
+        stored file.
         """
-        pathname = os.path.join(OBJECT_STORE_DIR, key)
+        filename = get_filename(key)
-        if not os.path.exists(pathname):
+        if not os.path.exists(filename):
             return Response(status.HTTP_404_NOT_FOUND)
-        return pickle.load(open(pathname, 'rb'))
+        return pickle.load(open(filename, 'rb'))
 
     def put(self, request, key):
         """
-        Update/create a stored object, by pickling the request content to a locally stored file.
+        Update/create a stored object, by pickling the request content to a
+        locally stored file.
         """
-        pathname = os.path.join(OBJECT_STORE_DIR, key)
+        filename = get_filename(key)
-        pickle.dump(self.CONTENT, open(pathname, 'wb'))
+        pickle.dump(self.CONTENT, open(filename, 'wb'))
         return self.CONTENT
 
     def delete(self, request, key):
         """
         Delete a stored object, by removing it's pickled file.
         """
-        pathname = os.path.join(OBJECT_STORE_DIR, key)
+        filename = get_filename(key)
-        if not os.path.exists(pathname):
+        if not os.path.exists(filename):
             return Response(status.HTTP_404_NOT_FOUND)
-        os.remove(pathname)
+        os.remove(filename)

examples/pygments_api/views.py

@@ -30,9 +30,13 @@ def list_dir_sorted_by_ctime(dir):
     """
     Return a list of files sorted by creation time
     """
-    filepaths = [os.path.join(dir, file) for file in os.listdir(dir) if not file.startswith('.')]
+    filepaths = [os.path.join(dir, file)
-    return [item[0] for item in sorted( [(path, os.path.getctime(path)) for path in filepaths],
+                 for file in os.listdir(dir)
-                                        key=operator.itemgetter(1), reverse=False) ]
+                 if not file.startswith('.')]
+    ctimes = [(path, os.path.getctime(path)) for path in filepaths]
+    ctimes = sorted(ctimes, key=operator.itemgetter(1), reverse=False)
+    return [filepath for filepath, ctime in  ctimes]
+
 
 def remove_oldest_files(dir, max_files):
     """

examples/resourceexample/views.py

@@ -15,7 +15,7 @@ class ExampleView(View):
         """
         Handle GET requests, returning a list of URLs pointing to 3 other views.
         """
-        return {"Some other resources": [reverse('another-example', request, kwargs={'num':num}) for num in range(3)]}
+        return {"Some other resources": [reverse('another-example', kwargs={'num':num}, request=request) for num in range(3)]}
 
 
 class AnotherExampleView(View):

examples/sandbox/views.py

@@ -27,11 +27,11 @@ class Sandbox(View):
     Please feel free to browse, create, edit and delete the resources in these examples."""
 
     def get(self, request):
-        return [{'name': 'Simple Resource example', 'url': reverse('example-resource', request)},
+        return [{'name': 'Simple Resource example', 'url': reverse('example-resource', request=request)},
-                {'name': 'Simple ModelResource example', 'url': reverse('model-resource-root', request)},
+                {'name': 'Simple ModelResource example', 'url': reverse('model-resource-root', request=request)},
-                {'name': 'Simple Mixin-only example', 'url': reverse('mixin-view', request)},
+                {'name': 'Simple Mixin-only example', 'url': reverse('mixin-view', request=request)},
-                {'name': 'Object store API', 'url': reverse('object-store-root', request)},
+                {'name': 'Object store API', 'url': reverse('object-store-root', request=request)},
-                {'name': 'Code highlighting API', 'url': reverse('pygments-root', request)},
+                {'name': 'Code highlighting API', 'url': reverse('pygments-root', request=request)},
-                {'name': 'Blog posts API', 'url': reverse('blog-posts-root', request)},
+                {'name': 'Blog posts API', 'url': reverse('blog-posts-root', request=request)},
-                {'name': 'Permissions example', 'url': reverse('permissions-example', request)}
+                {'name': 'Permissions example', 'url': reverse('permissions-example', request=request)}
                 ]