def get_cart_count(request, strict_redis: StrictRedis):
"""获取购物车商品总数量"""
count_list = strict_redis.hvals('cart_%s' % request.user.id)
total_count = 0
for count in count_list:
total_count += int(count)
return total_count
from redis.client import StrictRedis
if __name__ == '__main__':
strict_redis = StrictRedis(decode_responses=True)
# 购买了id为1的商品2件
strict_redis.hset('user_1', 1, 2)
# 购买了id为2的商品3件
strict_redis.hset('user_1', 2, 3)
# strict_redis.hmset('user_1', {'1': '2', '2': '3'})
# 查看hash所有的属性
items = strict_redis.hgetall('user_1')
print('所有的属性: %s' % items)
# 取出id为1的商品, 数量+1后再保存回去
count = strict_redis.hget('user_1', 1)
count = int(count) + 1
strict_redis.hset('user_1', 1, count)
# 累加购买数量
vals = strict_redis.hvals('user_1')
print('所有的值: %s' % vals)
count = 0
for c in vals:
count += int(c)
print('购买商品的总数量: %s' % count)
