def to_python(self, value):
if not value:
return None
if isinstance(value, _InstanceProxy):
return value
instance_url = from_slumber_scheme(
super(TypedRemoteChoiceField, self).to_python(value),
get_slumber_services())
model_url = from_slumber_scheme(self.model_url, get_slumber_services())
return get_instance(model_url, instance_url, None)
# def to_python(self, value):
# """
# Validates that the value is in self.choices and can be coerced to the
# right type.
# """
# value = super(TypedChoiceField, self).to_python(value)
# if value == self.empty_value or value in self.empty_values:
# return self.empty_value
# try:
# value = self.coerce(value)
# except (ValueError, TypeError, ValidationError):
# raise ValidationError(
# self.error_messages['invalid_choice'],
# code='invalid_choice',
# params={'value': value},
# )
# return value
def get_db_prep_value(self, value, *a, **kw):
if value is None:
url = None
elif isinstance(value, basestring):
url = to_slumber_scheme(value, get_slumber_services())
else:
url = to_slumber_scheme(value._url, get_slumber_services())
return super(RemoteForeignKey, self).get_db_prep_value(url, *a, **kw)
def get_db_prep_value(self, value, *a, **kw):
if value is None:
url = None
elif isinstance(value, basestring):
url = to_slumber_scheme(value, get_slumber_services())
else:
url = to_slumber_scheme(value._url, get_slumber_services())
return super(RemoteForeignKey, self).get_db_prep_value(url, *a, **kw)
def to_python(self, value):
if not value:
return None
if isinstance(value, _InstanceProxy):
return value
instance_url = from_slumber_scheme(
super(RemoteForeignKey, self).to_python(value),
get_slumber_services())
model_url = from_slumber_scheme(self.model_url, get_slumber_services())
return get_instance(model_url, instance_url, None)
def to_python(self, value):
if not value:
return None
if isinstance(value, _InstanceProxy):
return value
instance_url = from_slumber_scheme(
super(RemoteForeignKey, self).to_python(value),
get_slumber_services())
model_url = from_slumber_scheme(
self.model_url, get_slumber_services())
return get_instance(model_url, instance_url, None)
def get_prep_value(self, value, *a, **kw):
url = value
if value is not None:
if isinstance(value, basestring) or isinstance(value, DictObject):
return value
url = to_slumber_scheme(value._url, get_slumber_services())
return super(RemoteForeignKey, self).get_prep_value(url, *a, **kw)
def test_slumber_services(self):
with patch(
"slumber.server.get_slumber_directory",
lambda: {"pizzas": "/slumber/pizzas/", "takeaway": "http://localhost:8002:/slumber/"},
):
directory = get_slumber_services()
self.assertIsNotNone(directory)
def test_slumber_services(self):
with patch(
'slumber.server.get_slumber_directory', lambda: {
'pizzas': '/slumber/pizzas/',
'takeaway': 'http://localhost:8002:/slumber/'
}):
directory = get_slumber_services()
self.assertIsNotNone(directory)
def render(self, name, value, attrs=None, choices=()):
# we had to cast slumber field to string
if value is not None:
value = to_slumber_scheme(value._url, get_slumber_services())
return super(RemoteSelect, self).render(name,
value,
attrs=attrs,
choices=choices)
def __init__(self, directory=None):
client_apps = getattr(settings, 'SLUMBER_CLIENT_APPS', [])
for app in client_apps:
__import__(app, globals(), locals(), ['slumber_client'])
services = get_slumber_services(directory)
if not services:
if not directory:
directory = get_slumber_directory()
super(Client, self).__init__(directory)
else:
for k, v in services.items():
setattr(self, k, ServiceConnector(v))
super(Client, self).__init__(None)
def to_slumber_scheme(url, services=None):
"""Look at the URL and convert it to a service based URL if applicable.
"""
if services is None:
services = get_slumber_services()
ret = None
if services:
longest = None, ''
for service, service_url in services.items():
if url.startswith(service_url) and len(service_url) > len(longest):
ret, longest = \
'slumber://%s/%s' % (service, url[len(service_url):]), \
service_url
return ret or url
def __init__(self, directory=None):
self._instances = []
client_apps = getattr(settings, 'SLUMBER_CLIENT_APPS', [])
for app in client_apps:
__import__(app, globals(), locals(), ['slumber_client'])
services = get_slumber_services(directory)
if not services:
if not directory:
directory = get_slumber_directory()
super(Client, self).__init__(directory)
else:
for k, v in services.items():
setattr(self, k, ServiceConnector(v))
super(Client, self).__init__(None)
def clean(self, value):
if not value:
if self.required:
raise forms.ValidationError('This field is required')
return None
elif isinstance(value, _InstanceProxy):
return value
else:
try:
model_url = from_slumber_scheme(
self.model_url, get_slumber_services())
instance = get_instance(model_url, value, None)
unicode(instance)
except AssertionError:
raise forms.ValidationError("The remote object doesn't exist")
return instance
def clean(self, value):
if not value:
if self.required:
raise forms.ValidationError('This field is required')
return None
elif isinstance(value, _InstanceProxy):
return value
else:
try:
model_url = from_slumber_scheme(self.model_url,
get_slumber_services())
instance = get_instance(model_url, value, None)
unicode(instance)
except AssertionError:
raise forms.ValidationError("The remote object doesn't exist")
return instance
def from_slumber_scheme(url, services=None):
"""Turn a Slumber URL into a full URI as specified by the service
configuration.
"""
if services is None:
services = get_slumber_services()
if url.startswith('slumber://'):
if not services:
raise SlumberServiceURLError(
"There are no services in the Slumber directory "
"so the URL %s cannot be dereferenced" % url)
for service in services.keys():
service_prefix = 'slumber://%s/' % service
if url.startswith(service_prefix):
service_url = services[service]
final_url = service_url + url[len(service_prefix):]
return final_url
raise SlumberServiceURLError(
"Service in URL %s not found in configured services %s"
% (url, services.keys()))
return url
def test_slumber_services_none(self):
directory = get_slumber_services()
self.assertIsNone(directory)
def test_slumber_services_none(self):
directory = get_slumber_services()
self.assertIsNone(directory)
def get_service_directory(_request, response):
"""Return the services.
"""
response['services'] = get_slumber_services()
def get_service_directory(_request, response):
"""Return the services.
"""
response['services'] = get_slumber_services()
def test_slumber_services(self):
with patch('slumber.server.get_slumber_directory', lambda: {
'pizzas': '/slumber/pizzas/',
'takeaway': 'http://localhost:8002:/slumber/'}):
directory = get_slumber_services()
self.assertIsNotNone(directory)
