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599 lines
15 KiB
JavaScript
599 lines
15 KiB
JavaScript
"use strict";
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var async = require('async');
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module.exports = function(db, module) {
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var helpers = module.helpers.mongo;
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module.sortedSetAdd = function(key, score, value, callback) {
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callback = callback || helpers.noop;
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if (!key) {
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return callback();
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}
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if (Array.isArray(score) && Array.isArray(value)) {
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return sortedSetAddBulk(key, score, value, callback);
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}
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value = helpers.valueToString(value);
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db.collection('objects').update({_key: key, value: value}, {$set: {score: parseInt(score, 10)}}, {upsert:true, w: 1}, function(err) {
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callback(err);
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});
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};
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function sortedSetAddBulk(key, scores, values, callback) {
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if (!scores.length || !values.length) {
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return callback();
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}
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if (scores.length !== values.length) {
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return callback(new Error('[[error:invalid-data]]'));
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}
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values = values.map(helpers.valueToString);
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var bulk = db.collection('objects').initializeUnorderedBulkOp();
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for(var i=0; i<scores.length; ++i) {
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bulk.find({_key: key, value: values[i]}).upsert().updateOne({$set: {score: parseInt(scores[i], 10)}});
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}
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bulk.execute(function(err) {
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callback(err);
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});
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}
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module.sortedSetsAdd = function(keys, score, value, callback) {
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callback = callback || helpers.noop;
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if (!Array.isArray(keys) || !keys.length) {
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return callback();
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}
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value = helpers.valueToString(value);
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var bulk = db.collection('objects').initializeUnorderedBulkOp();
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for(var i=0; i<keys.length; ++i) {
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bulk.find({_key: keys[i], value: value}).upsert().updateOne({$set: {score: parseInt(score, 10)}});
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}
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bulk.execute(function(err) {
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callback(err);
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});
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};
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module.sortedSetRemove = function(key, value, callback) {
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function done(err) {
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callback(err);
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}
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callback = callback || helpers.noop;
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if (!key) {
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return callback();
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}
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if (Array.isArray(value)) {
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value = value.map(helpers.valueToString);
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db.collection('objects').remove({_key: key, value: {$in: value}}, done);
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} else {
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value = helpers.valueToString(value);
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db.collection('objects').remove({_key: key, value: value}, done);
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}
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};
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module.sortedSetsRemove = function(keys, value, callback) {
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callback = callback || helpers.noop;
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if (!Array.isArray(keys) || !keys.length) {
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return callback();
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}
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value = helpers.valueToString(value);
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db.collection('objects').remove({_key: {$in: keys}, value: value}, function(err) {
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callback(err);
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});
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};
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module.sortedSetsRemoveRangeByScore = function(keys, min, max, callback) {
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callback = callback || helpers.noop;
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if (!Array.isArray(keys) || !keys.length) {
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return callback();
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}
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var query = {_key: {$in: keys}};
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if (min !== '-inf') {
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query.score = {$gte: min};
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}
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if (max !== '+inf') {
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query.score = query.score || {};
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query.score.$lte = max;
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}
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db.collection('objects').remove(query, function(err) {
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callback(err);
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});
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};
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module.getSortedSetRange = function(key, start, stop, callback) {
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getSortedSetRange(key, start, stop, 1, false, callback);
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};
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module.getSortedSetRevRange = function(key, start, stop, callback) {
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getSortedSetRange(key, start, stop, -1, false, callback);
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};
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module.getSortedSetRangeWithScores = function(key, start, stop, callback) {
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getSortedSetRange(key, start, stop, 1, true, callback);
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};
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module.getSortedSetRevRangeWithScores = function(key, start, stop, callback) {
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getSortedSetRange(key, start, stop, -1, true, callback);
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};
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function getSortedSetRange(key, start, stop, sort, withScores, callback) {
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if (!key) {
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return callback();
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}
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var fields = {_id: 0, value: 1};
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if (withScores) {
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fields.score = 1;
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}
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if (Array.isArray(key)) {
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key = {$in: key};
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}
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db.collection('objects').find({_key: key}, {fields: fields})
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.limit(stop - start + 1)
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.skip(start)
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.sort({score: sort})
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.toArray(function(err, data) {
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if (err || !data) {
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return callback(err);
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}
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if (!withScores) {
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data = data.map(function(item) {
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return item.value;
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});
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}
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callback(null, data);
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});
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}
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module.getSortedSetRangeByScore = function(key, start, count, min, max, callback) {
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getSortedSetRangeByScore(key, start, count, min, max, 1, false, callback);
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};
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module.getSortedSetRevRangeByScore = function(key, start, count, max, min, callback) {
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getSortedSetRangeByScore(key, start, count, min, max, -1, false, callback);
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};
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module.getSortedSetRangeByScoreWithScores = function(key, start, count, min, max, callback) {
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getSortedSetRangeByScore(key, start, count, min, max, 1, true, callback);
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};
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module.getSortedSetRevRangeByScoreWithScores = function(key, start, count, max, min, callback) {
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getSortedSetRangeByScore(key, start, count, min, max, -1, true, callback);
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};
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function getSortedSetRangeByScore(key, start, count, min, max, sort, withScores, callback) {
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if (!key) {
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return callback();
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}
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if(parseInt(count, 10) === -1) {
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count = 0;
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}
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var query = {_key: key};
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if (min !== '-inf') {
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query.score = {$gte: min};
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}
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if (max !== '+inf') {
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query.score = query.score || {};
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query.score.$lte = max;
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}
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var fields = {_id: 0, value: 1};
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if (withScores) {
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fields.score = 1;
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}
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db.collection('objects').find(query, {fields: fields})
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.limit(count)
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.skip(start)
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.sort({score: sort})
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.toArray(function(err, data) {
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if(err) {
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return callback(err);
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}
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if (!withScores) {
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data = data.map(function(item) {
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return item.value;
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});
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}
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callback(err, data);
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});
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}
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module.sortedSetCount = function(key, min, max, callback) {
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if (!key) {
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return callback();
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}
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var query = {_key: key};
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if (min !== '-inf') {
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query.score = {$gte: min};
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}
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if (max !== '+inf') {
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query.score = query.score || {};
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query.score.$lte = max;
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}
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db.collection('objects').count(query, function(err, count) {
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callback(err, count ? count : 0);
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});
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};
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module.sortedSetCard = function(key, callback) {
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if (!key) {
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return callback(null, 0);
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}
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db.collection('objects').count({_key: key}, function(err, count) {
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count = parseInt(count, 10);
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callback(err, count ? count : 0);
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});
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};
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module.sortedSetsCard = function(keys, callback) {
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if (!Array.isArray(keys) || !keys.length) {
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return callback();
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}
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var pipeline = [
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{ $match : { _key : { $in: keys } } } ,
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{ $group: { _id: {_key: '$_key'}, count: { $sum: 1 } } },
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{ $project: { _id: 1, count: '$count' } }
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];
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db.collection('objects').aggregate(pipeline, function(err, results) {
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if (err) {
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return callback(err);
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}
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if (!Array.isArray(results)) {
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results = [];
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}
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var map = {};
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results.forEach(function(item) {
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if (item && item._id._key) {
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map[item._id._key] = item.count;
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}
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});
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results = keys.map(function(key) {
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return map[key] || 0;
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});
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callback(null, results);
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});
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};
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module.sortedSetRank = function(key, value, callback) {
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getSortedSetRank(module.getSortedSetRange, key, value, callback);
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};
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module.sortedSetRevRank = function(key, value, callback) {
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getSortedSetRank(module.getSortedSetRevRange, key, value, callback);
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};
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function getSortedSetRank(method, key, value, callback) {
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if (!key) {
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return callback();
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}
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value = helpers.valueToString(value);
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method(key, 0, -1, function(err, result) {
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if(err) {
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return callback(err);
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}
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var rank = result.indexOf(value);
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callback(null, rank !== -1 ? rank : null);
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});
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}
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module.sortedSetsRanks = function(keys, values, callback) {
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if (!Array.isArray(keys) || !keys.length) {
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return callback(null, []);
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}
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var data = new Array(values.length);
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for (var i=0; i<values.length; ++i) {
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data[i] = {key: keys[i], value: values[i]};
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}
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async.map(data, function(item, next) {
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getSortedSetRank(module.getSortedSetRange, item.key, item.value, next);
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}, callback);
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};
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module.sortedSetRanks = function(key, values, callback) {
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module.getSortedSetRange(key, 0, -1, function(err, sortedSet) {
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if (err) {
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return callback(err);
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}
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var result = values.map(function(value) {
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if (!value) {
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return null;
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}
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var index = sortedSet.indexOf(value.toString());
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return index !== -1 ? index : null;
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});
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callback(null, result);
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});
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};
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module.sortedSetScore = function(key, value, callback) {
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if (!key) {
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return callback();
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}
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value = helpers.valueToString(value);
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db.collection('objects').findOne({_key: key, value: value}, {fields:{_id: 0, score: 1}}, function(err, result) {
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callback(err, result ? result.score : null);
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});
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};
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module.sortedSetsScore = function(keys, value, callback) {
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if (!Array.isArray(keys) || !keys.length) {
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return callback();
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}
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value = helpers.valueToString(value);
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db.collection('objects').find({_key:{$in:keys}, value: value}, {_id:0, _key:1, score: 1}).toArray(function(err, result) {
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if (err) {
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return callback(err);
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}
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var map = helpers.toMap(result),
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returnData = [],
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item;
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for(var i=0; i<keys.length; ++i) {
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item = map[keys[i]];
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returnData.push(item ? item.score : null);
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}
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callback(null, returnData);
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});
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};
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module.sortedSetScores = function(key, values, callback) {
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if (!key) {
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return callback();
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}
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values = values.map(helpers.valueToString);
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db.collection('objects').find({_key: key, value: {$in: values}}, {_id: 0, value: 1, score: 1}).toArray(function(err, result) {
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if (err) {
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return callback(err);
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}
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var map = {};
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result.forEach(function(item) {
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map[item.value] = item.score;
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});
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var returnData = new Array(values.length),
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score;
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for(var i=0; i<values.length; ++i) {
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score = map[values[i]];
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returnData[i] = score ? score : null;
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}
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callback(null, returnData);
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});
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};
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module.isSortedSetMember = function(key, value, callback) {
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if (!key) {
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return callback();
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}
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value = helpers.valueToString(value);
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db.collection('objects').findOne({_key: key, value: value}, {_id: 0, value: 1}, function(err, result) {
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callback(err, !!result);
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});
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};
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module.isSortedSetMembers = function(key, values, callback) {
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if (!key) {
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return callback();
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}
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values = values.map(helpers.valueToString);
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db.collection('objects').find({_key: key, value: {$in: values}}, {fields: {_id: 0, value: 1}}).toArray(function(err, results) {
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if (err) {
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return callback(err);
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}
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results = results.map(function(item) {
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return item.value;
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});
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values = values.map(function(value) {
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return results.indexOf(value) !== -1;
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});
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callback(null, values);
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});
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};
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module.isMemberOfSortedSets = function(keys, value, callback) {
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if (!Array.isArray(keys)) {
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return callback();
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}
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value = helpers.valueToString(value);
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db.collection('objects').find({_key: {$in: keys}, value: value}, {fields: {_id: 0, _key: 1, value: 1}}).toArray(function(err, results) {
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if (err) {
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return callback(err);
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}
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results = results.map(function(item) {
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return item._key;
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});
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results = keys.map(function(key) {
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return results.indexOf(key) !== -1;
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});
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callback(null, results);
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});
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};
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module.getSortedSetsMembers = function(keys, callback) {
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if (!Array.isArray(keys) || !keys.length) {
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return callback(null, []);
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}
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db.collection('objects').find({_key: {$in: keys}}, {_id: 0, _key: 1, value: 1}).toArray(function(err, data) {
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if (err) {
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return callback(err);
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}
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var sets = {};
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data.forEach(function(set) {
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sets[set._key] = sets[set._key] || [];
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sets[set._key].push(set.value);
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});
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var returnData = new Array(keys.length);
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for(var i=0; i<keys.length; ++i) {
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returnData[i] = sets[keys[i]] || [];
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}
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callback(null, returnData);
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});
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};
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module.getSortedSetUnion = function(sets, start, stop, callback) {
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getSortedSetUnion(sets, 1, start, stop, callback);
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};
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module.getSortedSetRevUnion = function(sets, start, stop, callback) {
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getSortedSetUnion(sets, -1, start, stop, callback);
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};
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function getSortedSetUnion(sets, sort, start, stop, callback) {
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if (!Array.isArray(sets) || !sets.length) {
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return callback();
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}
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var limit = stop - start + 1;
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if (limit <= 0) {
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limit = 0;
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}
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var pipeline = [
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{ $match: { _key: {$in: sets}} },
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{ $group: { _id: {value: '$value'}, totalScore: {$sum : "$score"}} },
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{ $sort: { totalScore: sort} }
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];
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if (start) {
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pipeline.push({ $skip: start });
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}
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if (limit > 0) {
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pipeline.push({ $limit: limit });
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}
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pipeline.push({ $project: { _id: 0, value: '$_id.value' }});
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db.collection('objects').aggregate(pipeline, function(err, data) {
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if (err || !data) {
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return callback(err);
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}
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data = data.map(function(item) {
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return item.value;
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});
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callback(null, data);
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});
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}
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module.sortedSetIncrBy = function(key, increment, value, callback) {
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callback = callback || helpers.noop;
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if (!key) {
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return callback();
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}
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var data = {};
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value = helpers.fieldToString(value);
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data.score = parseInt(increment, 10);
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db.collection('objects').findAndModify({_key: key, value: value}, {}, {$inc: data}, {new: true, upsert: true}, function(err, result) {
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// if there is duplicate key error retry the upsert
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// https://github.com/NodeBB/NodeBB/issues/4467
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// https://jira.mongodb.org/browse/SERVER-14322
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// https://docs.mongodb.org/manual/reference/command/findAndModify/#upsert-and-unique-index
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if (err && err.message.startsWith('E11000 duplicate key error')) {
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return module.sortedSetIncrBy(key, increment, value, callback);
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}
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callback(err, result && result.value ? result.value.score : null);
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});
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};
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module.getSortedSetRangeByLex = function(key, min, max, start, count, callback) {
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var query = {_key: key};
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if (min !== '-') {
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query.value = {$gte: min};
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}
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if (max !== '+') {
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query.value = query.value || {};
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query.value.$lte = max;
|
|
}
|
|
db.collection('objects').find(query, {_id: 0, value: 1})
|
|
.sort({value: 1})
|
|
.skip(start)
|
|
.limit(count === -1 ? 0 : count)
|
|
.toArray(function(err, data) {
|
|
if (err) {
|
|
return callback(err);
|
|
}
|
|
data = data.map(function(item) {
|
|
return item && item.value;
|
|
});
|
|
callback(err, data);
|
|
});
|
|
};
|
|
|
|
module.processSortedSet = function(setKey, process, batch, callback) {
|
|
var done = false;
|
|
var ids = [];
|
|
var cursor = db.collection('objects').find({_key: setKey})
|
|
.sort({score: 1})
|
|
.project({_id: 0, value: 1})
|
|
.batchSize(batch);
|
|
|
|
async.whilst(
|
|
function() {
|
|
return !done;
|
|
},
|
|
function(next) {
|
|
cursor.next(function(err, item) {
|
|
if (err) {
|
|
return next(err);
|
|
}
|
|
if (item === null) {
|
|
done = true;
|
|
} else {
|
|
ids.push(item.value);
|
|
}
|
|
|
|
if (ids.length < batch && (!done || ids.length === 0)) {
|
|
return next(null);
|
|
}
|
|
|
|
process(ids, function(err) {
|
|
ids = [];
|
|
return next(err);
|
|
});
|
|
});
|
|
},
|
|
callback
|
|
);
|
|
};
|
|
};
|