def _add_set_exclusions(self, s):
indices = []
for k, v in self._exclusions.iteritems():
index = self._build_key_from_filter_item(k, v)
if k not in self.model_class._indices:
raise AttributeNotIndexed(
"Attribute %s is not indexed in %s class." %
(k, self.model_class.__name__))
indices.append(index)
new_set_key = "~%s.%s" % ("-".join([self.key] + indices), id(self))
s.difference(new_set_key, *[Set(n) for n in indices])
self._expire_or_delete.append(new_set_key)
return Set(new_set_key)
def _add_set_exclusions(self, s):
"""
This function is the internals of the `filter` function.
It simply creates a new "difference" of indexed keys (the filter) and
the previous filtered keys (if any).
.. Note:: This function uses the ``Set`` container class.
:return: the new Set
"""
indices = []
for k, v in self._exclusions.iteritems():
index = self._build_key_from_filter_item(k, v)
if k not in self.model_class._indices:
raise AttributeNotIndexed(
"Attribute %s is not indexed in %s class." %
(k, self.model_class.__name__))
indices.append(index)
new_set_key = "~%s.%s" % ("-".join([self.key] + indices), id(self))
s.difference(new_set_key, *[Set(n, db=self.db) for n in indices])
new_set = Set(new_set_key, db=self.db)
new_set.set_expire()
return new_set