Merge remote-tracking branch 'refs/remotes/origin/master' into chat-permission
commit
63b9255fa1
@ -0,0 +1,67 @@
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'use strict';
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var async = require('async');
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var db = require('../../database');
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module.exports = {
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name: 'Change the schema of simple keys so they don\'t use value field (mongodb only)',
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timestamp: Date.UTC(2017, 11, 18),
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method: function (callback) {
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var configJSON = require('../../../config.json');
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var isMongo = configJSON.hasOwnProperty('mongo') && configJSON.database === 'mongo';
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var progress = this.progress;
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if (!isMongo) {
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return callback();
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}
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var client = db.client;
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var cursor;
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async.waterfall([
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function (next) {
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client.collection('objects').count({
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_key: { $exists: true },
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value: { $exists: true },
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score: { $exists: false },
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}, next);
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},
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function (count, next) {
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progress.total = count;
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cursor = client.collection('objects').find({
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_key: { $exists: true },
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value: { $exists: true },
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score: { $exists: false },
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}).batchSize(1000);
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var done = false;
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async.whilst(
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function () {
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return !done;
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},
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function (next) {
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async.waterfall([
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function (next) {
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cursor.next(next);
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},
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function (item, next) {
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progress.incr();
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if (item === null) {
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done = true;
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return next();
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}
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if (Object.keys(item).length === 3 && item.hasOwnProperty('_key') && item.hasOwnProperty('value')) {
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client.collection('objects').update({ _key: item._key }, { $rename: { value: 'data' } }, next);
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} else {
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next();
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}
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},
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], function (err) {
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next(err);
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});
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},
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next
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);
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},
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], callback);
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},
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};
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