def _getattr(self, attribute):
""" responds to instance.method by asking datalog engine """
if not attribute == "__iter__" and not attribute.startswith("_sa_"):
predicate_name = "%s.%s[1]==" % (self.__class__.__name__, attribute)
literal = Literal.make(predicate_name, (self, Symbol("X")))
result = literal.lua.ask(False)
return result[0][-1] if result else None
raise AttributeError
def _getattr(self, attribute):
""" responds to instance.method by asking datalog engine """
if not attribute == '__iter__' and not attribute.startswith(
'_sa_'):
predicate_name = "%s.%s[1]==" % (self.__class__.__name__,
attribute)
literal = Literal.make(predicate_name, (self, Symbol("X")))
result = literal.lua.ask(False)
return result[0][-1] if result else None
raise AttributeError
def assert_fact(predicate_name, *args):
""" assert predicate_name(args) """
literal = Literal.make(predicate_name, [pyParser.Expression._for(arg) for arg in args])
_assert_fact(literal)
def retract_fact(predicate_name, *args):
""" retracts predicate_name(args) """
literal = Literal.make(predicate_name, [pyParser.Expression._for(arg) for arg in args])
_retract_fact(literal)
def assert_fact(predicate_name, *args):
""" assert predicate_name(args) """
literal = Literal.make(predicate_name,
[pyParser.Expression._for(arg) for arg in args])
_assert_fact(literal)
def retract_fact(predicate_name, *args):
""" retracts predicate_name(args) """
literal = Literal.make(predicate_name,
[pyParser.Expression._for(arg) for arg in args])
_retract_fact(literal)
