def _initialize_decision(decision, member, bill):
"""Initializes a decision object with information about the member and bill.
Extracts stances for the member based on the bill and the member's
relations.
Arguments:
decision: the decision object to initialize
member: a Member object corresponding to the member who will vote
bill: a Bill object of the bill to be voted on.
"""
logger.LOGGER.info("Initializing decision...")
decision.member = member._id
decision.bill = bill._id
if not member.stances:
member_analyze.extract_voting_stances(member)
if not member.pro_rel_stances:
member_analyze.infer_relations_stances(member)
logger.LOGGER.info("Analyzing alternative positions...")
decision.for_stances = member_analyze.match_stances(member, bill, outcomes.FOR)
decision.agn_stances = member_analyze.match_stances(member, bill, outcomes.AGN)
logger.LOGGER.info("Initialization complete.")
def test_infer_relations_stances(self):
""" Verifies all group stances are extracted."""
member_analyze.infer_relations_stances(self.member)
# Stances from friends of the member should be in pro_rel_stances
self.assertEqual(len(self.member.pro_rel_stances), len(self.group1.stances))
for stance1, stance2 in zip(self.member.pro_rel_stances, self.group1.stances):
self.assertTrue(stance1.total_match(stance2))
# Stances from enemies of the member should be in con_rel_stances
self.assertEqual(len(self.member.con_rel_stances), len(self.group2.stances))
for stance1, stance2 in zip(self.member.con_rel_stances, self.group2.stances):
self.assertTrue(stance1.total_match(stance2))