def __filterkwargs(self, objectconstraints=False, **kwargs):
from rdf.models import Predicate, Resource
if kwargs.has_key('subject'):
s = Predicate.locate_resource(kwargs['subject'])
if s is None:
raise Exception('subject (%s) has no resource field' % unicode(kwargs['subject']))
else:
kwargs['subject'] = s
k = 'object'
if kwargs.has_key(k):
# XXX This is dirty...
# Also overlaps with parts of Statement and Predicate.
v = kwargs[k]
if v is not None:
if isinstance(v, Resource):
del kwargs[k]
kwargs['object_resource'] = v
elif isinstance(v, Model) and hasattr(v, 'resource'):
del kwargs[k]
kwargs['object_resource'] = v.resource
elif objectconstraints:
del kwargs[k]
p = kwargs['predicate']
reverse = p.Range.__name__.lower()
if isinstance(v, dict):
for vk, vv in v.items():
kwargs['__'.join((reverse, vk, 'exact'))] = vv
else:
kwargs[reverse + '__value__exact'] = v
return kwargs
def _rdf_property(self, e):
try:
label = e.find(RDFS_LABEL).text
resource, create = self._rdf_property_resource(e, label)
if create is True: yield resource
domain, create = _rdf_property_domain(e)
if create is True: yield domain
range, create = _rdf_property_range(e)
if create is True: yield range
field_name = _rdf_property_field_name(e)
cardinality = _rdf_property_cardinality(e)
description = _rdf_property_dc_description(e, label)
match = Predicate.objects.filter(resource=resource)
if 1 > match.count():
predicate = Predicate(
resource=resource,
title=label.title(),
description=description,
domain=domain,
range=range,
cardinality=cardinality,
field_name=field_name)
else:
predicate = match[0]
predicate.title = label.title()
predicate.description = description
predicate.domain = domain
predicate.range = range
predicate.cardinality = cardinality
predicate.field_name = field_name
self._rdf_property_subpropertyof(e, predicate)
yield predicate
except Exception, x: # IGNORE:W0703
self._except(Exception, x, 'failed to parse property `%s`' % resource) # IGNORE:E1101
