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JSONPRenderer with json renderer composition

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Juan Fabio García Solero 2011-12-15 15:20:47 +01:00
parent 9516b26a80
commit 34b1bdeef0
1 changed files with 12 additions and 30 deletions
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42
djangorestframework/renderers.py
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@ -114,44 +114,26 @@ class JSONRenderer(BaseRenderer):
return json.dumps(obj, cls=DateTimeAwareJSONEncoder, indent=indent, sort_keys=sort_keys) return json.dumps(obj, cls=DateTimeAwareJSONEncoder, indent=indent, sort_keys=sort_keys)
class JSONPRenderer(BaseRenderer): class JSONPRenderer(JSONRenderer):
""" """
Renderer which serializes to JSONP Renderer which serializes to JSONP
""" """
media_type = 'application/json-p' media_type = 'application/json-p'
format = 'json-p' format = 'json-p'
renderer_class = JSONRenderer
callback_parameter = 'callback' callback_parameter = 'callback'
def _get_callback(self):
return self.view.request.GET.get(self.callback_parameter, self.callback_parameter)
def _get_renderer(self):
return self.renderer_class(self.view)
def render(self, obj=None, media_type=None): def render(self, obj=None, media_type=None):
""" callback = self._get_callback()
Renders *obj* into serialized JSONP. json = self._get_renderer().render(obj, media_type)
return "%s(%s);" % (callback, json)
The callback function name is taken from the 'callback' parameter
contained in the jsonp request.
"""
callback = self.view.request.GET.get(self.callback_parameter, self.callback_parameter)
if obj is None:
serialized_obj = ''
else:
json_renderer = self._get_renderer(JSONRenderer.media_type)
if json_renderer is None:
serialized_obj = json.dumps(obj, cls=DateTimeAwareJSONEncoder)
else:
serialized_obj = json_renderer.render(obj, JSONRenderer.media_type)
return "%s(%s);" % (callback, serialized_obj)
def _get_renderer(self, media_type=None):
"""
Get first view renderer that serializes *media_type*.
"""
for r in self.view.renderers:
renderer = r(self.view)
if renderer.can_handle_response(media_type):
return renderer
return None
class XMLRenderer(BaseRenderer): class XMLRenderer(BaseRenderer):