Issue in detecting instance variables in fact checking for "while"

[waageesh]

@nemonik
@scotte
@dicato
Hi,

when rule is not working properly for me
Variables i am passing to fact is being detected

helloworld.policy

import logging
from helloworld import Check
first_sum = 0
second_sum = 0


location = ["China", "Malaysia"]

rule "restrict who are under 18":
        agenda-group "test_d"
        when:
                $check := Check(age < 18)
        then:
                print($check)
                log("{0} is with age {1} from {2}, no access allowed".format($check.name, $check.age, $check.country),
                    "example", logging.DEBUG)
                #$check.getDetails()

rule "restrict who are from restricted countries":
        agenda-group "test_d"
        when:
                $check := Check(country in location)
        then:
                print($check)
                log("{0} is with age {1} from {2}, no access allowed".format($check.name, $check.age, $check.country),
                    "example", logging.DEBUG)
                #$check.getDetails()

helloworld.py

# import ipdb;ipdb.set_trace()
import sys, logging
from intellect.Intellect import Intellect
from intellect.Intellect import Callable

class MyIntellect(Intellect):
        pass

class Check():
    def __init__(self, name, age, country) :
        self.name = name
        self.age = age
        self.country = country
    @Callable
    def getDetails(self):
        print("{0} is with {1} and from {2}".format(name, age, country))

if __name__ == "__main__" :
    # set up logging for the example
    logger = logging.getLogger('example')
    logger.setLevel(logging.DEBUG)
    consoleHandler = logging.StreamHandler(stream=sys.stdout)
    consoleHandler.setFormatter(logging.Formatter('%(asctime)s %(name)-12s %(levelname)-8s%(message)s'))
    logger.addHandler(consoleHandler)

    # training with rules
    myIntellect = MyIntellect()
    policyHelloWorld = myIntellect.learn(Intellect.local_file_uri("helloworld.policy"))
    logging.getLogger("example").debug("Asking the engine to learn a BuyOrder for {0} sheep.".format(Check))

    # age, country input from user
    name = raw_input("Enter your name:")
    age = int(input("Enter your age:"))
    country = raw_input("Enter your country:")
    print(name, age,country)
    myIntellect.learn(Check(name, age, country))

    # executing the rules
    myIntellect.reason(["test_d"])

O/P:

But when i am initializing variables "age", "country" in helloworld.policy,
then fact checking in while is taking these values instead of taking from actual instance attributes

helloworld.policy

import logging
from helloworld import Check
first_sum = 0
second_sum = 0

age=0
country=""
location = ["China", "Malaysia"]

rule "restrict who are under 18":
        agenda-group "test_d"
        when:
                $check := Check(age < 18)
        then:
                print($check)
                log("{0} is with age {1} from {2}, no access allowed".format($check.name, $check.age, $check.country),
                    "example", logging.DEBUG)
                #$check.getDetails()

rule "restrict who are from restricted countries":
        agenda-group "test_d"
        when:
                $check := Check(country in location)
        then:
                print($check)
                log("{0} is with age {1} from {2}, no access allowed".format($check.name, $check.age, $check.country),
                    "example", logging.DEBUG)
                #$check.getDetails()

O/P:

In above output, inside "while", age=0 nd country="" are being treated which makes rule1 True and rule2 False

But in examples given in offical git doc()
instance attributes are directly used in "while" checking

Where its going wrong ?