def import_by_path(dotted_path, error_prefix=""):
"""
Import a dotted module path and return the attribute/class designated by
the last name in the path. Raise ImproperlyConfigured if something goes
wrong. This has come straight from Django 1.6
"""
try:
module_path, class_name = dotted_path.rsplit(".", 1)
except ValueError:
raise ImproperlyConfigured("%s%s doesn't look like a module path" % (error_prefix, dotted_path))
try:
module = import_module(module_path)
except ImportError as e:
raise ImproperlyConfigured('%sError importing module %s: "%s"' % (error_prefix, module_path, e))
try:
attr = getattr(module, class_name)
except AttributeError:
raise ImproperlyConfigured(
'%sModule "%s" does not define a "%s" attribute/class' % (error_prefix, module_path, class_name)
)
return attr
def import_by_path(dotted_path, error_prefix=''):
"""
Import a dotted module path and return the attribute/class designated by
the last name in the path. Raise ImproperlyConfigured if something goes
wrong. This has come straight from Django 1.6
"""
try:
module_path, class_name = dotted_path.rsplit('.', 1)
except ValueError:
raise ImproperlyConfigured("%s%s doesn't look like a module path" %
(error_prefix, dotted_path))
try:
module = import_module(module_path)
except ImportError as e:
raise ImproperlyConfigured('%sError importing module %s: "%s"' %
(error_prefix, module_path, e))
try:
attr = getattr(module, class_name)
except AttributeError:
raise ImproperlyConfigured(
'%sModule "%s" does not define a "%s" attribute/class' %
(error_prefix, module_path, class_name))
return attr
def endpoint_loader(request, application, model, **kwargs):
"""Load an AJAX endpoint.
This will load either an ad-hoc endpoint or it will load up a model
endpoint depending on what it finds. It first attempts to load ``model``
as if it were an ad-hoc endpoint. Alternatively, it will attempt to see if
there is a ``ModelEndpoint`` for the given ``model``.
"""
if request.method != "POST":
raise AJAXError(400, _('Invalid HTTP method used.'))
try:
module = import_module('%s.endpoints' % application)
except ImportError as e:
if settings.DEBUG:
raise e
else:
raise AJAXError(404, _('AJAX endpoint does not exist.'))
if hasattr(module, model):
# This is an ad-hoc endpoint
endpoint = getattr(module, model)
else:
# This is a model endpoint
method = kwargs.get('method', 'create').lower()
try:
del kwargs['method']
except:
pass
try:
model_endpoint = ajax.endpoint.load(model, application, method,
**kwargs)
if not model_endpoint.authenticate(request, application, method):
raise AJAXError(403, _('User is not authorized.'))
endpoint = getattr(model_endpoint, method, False)
if not endpoint:
raise AJAXError(404, _('Invalid method.'))
except NotRegistered:
raise AJAXError(500, _('Invalid model.'))
data = endpoint(request)
if isinstance(data, HttpResponse):
return data
if isinstance(data, EnvelopedResponse):
envelope = data.metadata
payload = data.data
else:
envelope = {}
payload = data
envelope.update({
'success': True,
'data': payload,
})
return HttpResponse(json.dumps(envelope, cls=DjangoJSONEncoder,
separators=(',', ':')))
