def dehydrate(self, bundle):
foreign_obj = None
depth = getattr(bundle, 'depth', 0)
if isinstance(self.attribute, basestring):
attrs = self.attribute.split('__')
foreign_obj = bundle.obj
for attr in attrs:
previous_obj = foreign_obj
try:
foreign_obj = getattr(foreign_obj, attr, None)
except ObjectDoesNotExist:
foreign_obj = None
elif callable(self.attribute):
foreign_obj = self.attribute(bundle)
if not foreign_obj:
if not self.null:
raise ApiFieldError(
"The model '%r' has an empty attribute '%s' and doesn't allow a null value."
% (previous_obj, attr))
return None
self.fk_resource = self.get_related_resource(foreign_obj)
fk_bundle = Bundle(obj=foreign_obj, request=bundle.request)
fk_bundle.depth = depth + 1
return self.dehydrate_related(fk_bundle, self.fk_resource)
def dehydrate(self, bundle):
foreign_obj = None
if isinstance(self.attribute, basestring):
attrs = self.attribute.split('__')
foreign_obj = bundle.obj
for attr in attrs:
previous_obj = foreign_obj
try:
foreign_obj = getattr(foreign_obj, attr, None)
except ObjectDoesNotExist:
foreign_obj = None
elif callable(self.attribute):
foreign_obj = self.attribute(bundle)
if not foreign_obj:
if not self.null:
raise ApiFieldError("The model '%r' has an empty attribute '%s' and doesn't allow a null value." % (previous_obj, attr))
return None
self.fk_resource = self.get_related_resource(foreign_obj)
fk_bundle = Bundle(obj=foreign_obj, request=bundle.request)
depth = getattr(bundle, 'depth', None)
if depth is None:
depth = self.max_depth
if depth is not None:
fk_bundle.depth = depth - 1
return self.dehydrate_related(fk_bundle, self.fk_resource)
def dehydrate(self, bundle, for_list=True):
foreign_obj = None
if callable(self.attribute):
previous_obj = bundle.obj
foreign_obj = self.attribute(bundle)
elif isinstance(self.attribute, six.string_types):
foreign_obj = bundle.obj
for attr in self._attrs:
previous_obj = foreign_obj
try:
foreign_obj = getattr(foreign_obj, attr, None)
except ObjectDoesNotExist:
foreign_obj = None
if not foreign_obj:
if not self.null:
if callable(self.attribute):
raise ApiFieldError("The related resource for resource %s could not be found." % (previous_obj))
else:
raise ApiFieldError("The model '%r' has an empty attribute '%s' and doesn't allow a null value." % (previous_obj, attr))
return None
fk_resource = self.get_related_resource(foreign_obj)
fk_bundle = Bundle(obj=foreign_obj, request=bundle.request)
fk_bundle.fields = getattr(bundle, 'fields', None)
depth = getattr(bundle, 'depth', None)
if depth is None:
depth = self.max_depth
if depth is not None:
fk_bundle.depth = depth - 1
return self.dehydrate_related(fk_bundle, fk_resource, for_list=for_list)
def dehydrate(self, bundle):
if not bundle.obj or not bundle.obj.pk:
if not self.null:
raise ApiFieldError(
"The model '%r' does not have a primary key and can not be used in a ToMany context."
% bundle.obj)
return []
the_m2ms = None
previous_obj = bundle.obj
attr = self.attribute
if isinstance(self.attribute, basestring):
attrs = self.attribute.split('__')
the_m2ms = bundle.obj
for attr in attrs:
previous_obj = the_m2ms
try:
the_m2ms = getattr(the_m2ms, attr, None)
except ObjectDoesNotExist:
the_m2ms = None
if not the_m2ms:
break
elif callable(self.attribute):
the_m2ms = self.attribute(bundle)
if not the_m2ms:
if not self.null:
raise ApiFieldError(
"The model '%r' has an empty attribute '%s' and doesn't allow a null value."
% (previous_obj, attr))
return []
self.m2m_resources = []
m2m_dehydrated = []
depth = getattr(bundle, 'depth', None)
if depth is None:
depth = self.max_depth
# TODO: Also model-specific and leaky. Relies on there being a
# ``Manager`` there.
for m2m in the_m2ms.all():
m2m_resource = self.get_related_resource(m2m)
m2m_bundle = Bundle(obj=m2m, request=bundle.request)
self.m2m_resources.append(m2m_resource)
if depth is not None:
m2m_bundle.depth = depth - 1
m2m_dehydrated.append(
self.dehydrate_related(m2m_bundle, m2m_resource))
return m2m_dehydrated
def dehydrate(self, bundle):
if not bundle.obj or not bundle.obj.pk:
if not self.null:
raise ApiFieldError("The model '%r' does not have a primary key and can not be used in a ToMany context." % bundle.obj)
return []
the_m2ms = None
previous_obj = bundle.obj
attr = self.attribute
if isinstance(self.attribute, basestring):
attrs = self.attribute.split('__')
the_m2ms = bundle.obj
for attr in attrs:
previous_obj = the_m2ms
try:
the_m2ms = getattr(the_m2ms, attr, None)
except ObjectDoesNotExist:
the_m2ms = None
if not the_m2ms:
break
elif callable(self.attribute):
the_m2ms = self.attribute(bundle)
if not the_m2ms:
if not self.null:
raise ApiFieldError("The model '%r' has an empty attribute '%s' and doesn't allow a null value." % (previous_obj, attr))
return []
self.m2m_resources = []
m2m_dehydrated = []
depth = getattr(bundle, 'depth', None)
if depth is None:
depth = self.max_depth
# TODO: Also model-specific and leaky. Relies on there being a
# ``Manager`` there.
for m2m in the_m2ms.all():
m2m_resource = self.get_related_resource(m2m)
m2m_bundle = Bundle(obj=m2m, request=bundle.request)
self.m2m_resources.append(m2m_resource)
if depth is not None:
m2m_bundle.depth = depth - 1
m2m_dehydrated.append(self.dehydrate_related(m2m_bundle, m2m_resource))
return m2m_dehydrated