def change_solution_price(user_id, prob_id, new_price, user_pool, user_list):
connection = redis.Redis(connection_pool=user_pool)
all_commodities = list_all_commodities(user_list, user_pool)
flag = False
for prob,user,_ in all_commodities:
if prob==prob_id and user==user_id:
flag=True
break
if not flag:
return False
with RedisWriteLock(connection, user_id, RETRY_INTERVAL, EXPIRE_TIME):
user_info = UserLogic.fromString(connection.get(user_id).decode())
found = False
for index,(prob, user, _) in enumerate(user_info[7]):
if prob==prob_id and user==user_id:
found = True
break
if not found:
return False
user_info[7].pop(index)
user_info[7].append((prob_id, user_id, new_price))
user_info[4] += MARKET_FEE_CHANGE_PRICE
connection.set(user_id, UserLogic.toString(user_info))
return True
def sell_solution(user_id, prob_id, price, user_pool):
connection = redis.Redis(connection_pool=user_pool)
with RedisWriteLock(connection, user_id, RETRY_INTERVAL, EXPIRE_TIME):
user_info = UserLogic.fromString(connection.get(user_id).decode())
user_info[7].append((prob_id, user_id, price))
user_info[4] += MARKET_FEE_NEW_ITEM
connection.set(user_id, UserLogic.toString(user_info))
return True
def update_user_solution(points, problem_id, user_id, user_pool):
connection = redis.Redis(connection_pool=user_pool)
with RedisWriteLock(connection, user_id, RETRY_INTERVAL, EXPIRE_TIME):
user_info = UserLogic.fromString(connection.get(user_id).decode())
if problem_id in user_info[5]:
return False
else:
user_info[5].append(problem_id)
user_info[2] += points
connection.set(user_id, UserLogic.toString(user_info))
return True
def get_user_from_redis(user, connection_pool):
connection = redis.Redis(connection_pool=connection_pool)
with RedisWriteLock(connection, user, RETRY_INTERVAL, EXPIRE_TIME):
try:
result = UserLogic.fromString(connection.get(user).decode())
return result
except AttributeError:
return None
def add_to_purchases(user_id, prob_id, user_pool):
connection = redis.Redis(connection_pool=user_pool)
with RedisWriteLock(connection, user_id, RETRY_INTERVAL, EXPIRE_TIME):
user_info = UserLogic.fromString(connection.get(user_id).decode())
user_info[6].append(prob_id)
connection.set(user_id, UserLogic.toString(user_info))
def charge_user(user_id, price, user_pool):
connection = redis.Redis(connection_pool=user_pool)
with RedisWriteLock(connection, user_id, RETRY_INTERVAL, EXPIRE_TIME):
user_info = UserLogic.fromString(connection.get(user_id).decode())
user_info[4] += price
connection.set(user_id, UserLogic.toString(user_info))
