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sortedSetUnionCard

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This commit is contained in:
barisusakli
2016-09-09 13:19:14 +03:00
parent 77c549081c
commit e1263f1057
3 changed files with 48 additions and 2 deletions
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17
src/database/redis/sorted.js
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@@ -232,6 +232,23 @@ module.exports = function(redisClient, module) {
multi.exec(callback);
};
module.sortedSetUnionCard = function(keys, callback) {
var tempSetName = 'temp_' + Date.now();
var multi = redisClient.multi();
multi.zunionstore([tempSetName, keys.length].concat(keys));
multi.zcard(tempSetName);
multi.del(tempSetName);
multi.exec(function(err, results) {
if (err) {
return callback(err);
}
callback(null, Array.isArray(results) && results.length ? results[1] : 0);
});
};
module.getSortedSetUnion = function(params, callback) {
params.method = 'zrange';
sortedSetUnion(params, callback);