def save(self):
if self.id is None:
DESIRED_QUESTIONS = 20
self.id = str(uuid4())
all_questions = user_store.keys('question:*')
all_questions = [int(x[9:]) for x in all_questions]
if len(all_questions) < DESIRED_QUESTIONS:
raise Exception("Not enough questions")
random_questions = random.sample(all_questions, DESIRED_QUESTIONS)
for q in random_questions:
user_store.sadd('user_questions:' + self.id, q)
user_store.hmset('user:'******'id': self.id,
'name': self.name,
'email': self.email,
'branch': self.branch,
'roll_no': self.roll_no,
'score': self.score
})
from mycq import user_store
import csv
import sys
def calculate_score(user_id):
score = 0
answers = user_store.hgetall('user_answers:' + user_id)
for qid in answers.keys():
correct_answer = user_store.hget('question:' + str(qid), 'correct_answer')
if answers[qid] == correct_answer:
score += 10
else:
score -= 5
return score
user_keys = user_store.keys('user:*')
user_scores = []
for user_key in user_keys:
user = user_store.hgetall(user_key)
user_score = calculate_score(user['id'])
user_scores.append((user['id'], user['name'], user['email'], user['roll_no'], user['branch'], user_score))
user_store.hset(user_key, 'score', user_score)
top_users = sorted(user_scores, key=lambda x:x[-1], reverse=True)
cw = csv.writer(sys.stdout)
cw.writerow(('id', 'name', 'email', 'roll_no', 'branch', 'score'))
for user in top_users:
cw.writerow(user)