def render(self, context):
try:
target = self.target.resolve(context)
except VariableDoesNotExist:
msg = (
u"{% get_metadata %} needs some path information.\n"
u"Please use RequestContext with the django.core.context_processors.request context processor.\n"
"Or provide a path or object explicitly, eg {% get_metadata for path %} or {% get_metadata for object %}"
)
raise template.TemplateSyntaxError(msg)
else:
if callable(target):
target = target()
if isinstance(target, basestring):
path = target
elif hasattr(target, 'get_absolute_url'):
path = target.get_absolute_url()
elif hasattr(target, "__iter__") and 'get_absolute_url' in target:
path = target['get_absolute_url']()
else:
path = None
kwargs = {}
# If a site is given, pass that on
if self.site:
kwargs['site'] = self.site.resolve(context)
# If a language is given, pass that on
if self.language:
kwargs['language'] = self.language.resolve(context)
metadata = None
# If the target is a django model object
if hasattr(target, 'pk'):
metadata = get_linked_metadata(target, self.metadata_name, context,
**kwargs)
if not isinstance(path, basestring):
path = None
if not metadata:
# Fetch the metadata
try:
metadata = get_metadata(path, self.metadata_name, context,
**kwargs)
except Exception as e:
raise template.TemplateSyntaxError(e)
# If a variable name is given, store the result there
if self.variable_name is not None:
context[self.variable_name] = metadata
return ""
else:
return unicode(metadata)
def render(self, context):
try:
target = self.target.resolve(context)
except VariableDoesNotExist:
msg = (u"{% get_metadata %} needs some path information.\n"
u"Please use RequestContext with the django.core.context_processors.request context processor.\n"
"Or provide a path or object explicitly, eg {% get_metadata for path %} or {% get_metadata for object %}")
raise template.TemplateSyntaxError(msg)
else:
if callable(target):
target = target()
if isinstance(target, basestring):
path = target
elif hasattr(target, 'get_absolute_url'):
path = target.get_absolute_url()
elif hasattr(target, "__iter__") and 'get_absolute_url' in target:
path = target['get_absolute_url']()
else:
path = None
kwargs = {}
# If a site is given, pass that on
if self.site:
kwargs['site'] = self.site.resolve(context)
# If a language is given, pass that on
if self.language:
kwargs['language'] = self.language.resolve(context)
metadata = None
# If the target is a django model object
if hasattr(target, 'pk'):
metadata = get_linked_metadata(target, self.metadata_name, context, **kwargs)
if not isinstance(path, basestring):
path = None
if not metadata:
# Fetch the metadata
try:
metadata = get_metadata(path, self.metadata_name, context, **kwargs)
except Exception, e:
raise template.TemplateSyntaxError(e)
def post_comment_to_facebook(request, user, comment):
# TODO factor this stuff out into an opengraph/facebook app
social_auth = user.social_auth.get(provider="facebook")
url = "https://graph.facebook.com/me/{ns}:comment_on".format(
ns=settings.FACEBOOK_NAMESPACE, )
object_url = comment.content_object.get_absolute_url()
object_type = get_metadata(object_url).og_type.value
if object_type is None:
raise AttributeError("Unable to find og:type from URL %s" % object_url)
# Remove namespace, if any
if ":" in object_type:
unused, object_type = object_type.split(":", 1)
data = {
"access_token":
ACCESS_TOKEN or social_auth.extra_data["access_token"],
object_type:
"http://{host}{path}".format(
host=request.get_host(),
path=object_url,
),
"fb:explicitly_shared":
True,
"message":
comment.comment,
}
resp = requests.post(url, data)
resp_data = resp.json
if resp.status_code != requests.codes.ok:
e = FacebookErrorMessage(
"%s: %s" %
(resp_data["error"]["type"], resp_data["error"]["message"]))
e.response = resp
raise e
if "id" in resp_data:
return resp_data["id"]
raise requests.exceptions.HTTPError("Unknown data: %s" % resp_data)
def get_meta(attr, path='/'):
try:
return getattr(get_metadata(path), attr).value
except:
return ''
