def __getmodel(self):
"""
Returns the Django model that materializes this concept. This is either
the RDF Resource model (in case of a generic concept) or some other model
that stores only instances of this exact concept.
"""
return import_class(self.model_name)
def __getitem__(self, name):
"""
This is a highly convenient shorthand that supports expressions like
RDF['Property', 'about', 'subject', 'predicate', 'object']
and returns instances of the appropriate models - in the example above,
a concept and for predicates.
It somewhat unfortunately can't be used in any code that might be invoked
from the templating system.
"""
if not self._dict_enabled:
return super(Namespace, self).__getitem__(name)
if type(name) in (tuple, list):
return [self[i] for i in name]
r = Resource.objects.get(namespace=self, name=name)
if not r.type is Resource:
Model = import_class(r.type.model_name) # IGNORE:W0621
if not Model is Resource:
r = Model.objects.get(resource=r)
return r
