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sortedSetIntersectionCard

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This commit is contained in:
barisusakli
2016-09-16 13:01:11 +03:00
parent 814c4103ad
commit 990ecc8cd2
4 changed files with 78 additions and 4 deletions
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18
src/database/mongo/sorted.js
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@@ -637,6 +637,24 @@ module.exports = function(db, module) {
};
module.sortedSetIntersectCard = function(keys, callback) {
if (!Array.isArray(keys) || !keys.length) {
return callback(null, 0);
}
var pipeline = [
{ $match: { _key: {$in: keys}} },
{ $group: { _id: {value: '$value'}, count: {$sum: 1}} },
{ $match: { count: keys.length} },
{ $group: { _id: null, count: { $sum: 1 } } },
{ $project: { _id: 0, count: '$count' } }
];
db.collection('objects').aggregate(pipeline, function(err, data) {
callback(err, Array.isArray(data) && data.length ? data[0].count : 0);
});
};
module.getSortedSetIntersect = function(params, callback) {
params.sort = 1;
getSortedSetRevIntersect(params, callback);