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restore NaN history entries (@djuretic thanks!)

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Tyler Renelle
2013-12-21 20:03:14 -07:00
parent 4adb66cc4f
commit 99b3febe86
1 changed files with 45 additions and 0 deletions
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45
migrations/20131221_restore_NaN_history.js Normal file
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// node .migrations/20131221_restore_NaN_history.js
/**
* After the classes migration, users lost some history entries
*/
var mongo = require('mongoskin');
var _ = require('lodash');
var backupUsers = mongo.db('localhost:27017/habitrpg_old?auto_reconnect').collection('users');
var liveUsers = mongo.db('localhost:27017/habitrpg?auto_reconnect').collection('users');
function filterNaNs(h) {
return h && _.isNumber(+h.value) && !_.isNaN(+h.value);
}
var fields = {history:1,habits:1,dailys:1,migration:1};
var count = 0;
liveUsers.findEach({migration: {$ne:'20131221_restore_NaN_history'}}, fields, {batchSize:500}, function(err, after){
if (!after) err = '!after';
if (err) {count++;return console.error(err);}
backupUsers.findById(after._id, fields, function(err, before){
if (err) {count++;return console.error(err);}
_.each(['todos','exp'],function(type){
if (!_.isEmpty(after.history[type]))
after.history[type] = _.filter(after.history[type], filterNaNs);
if (before && !_.isEmpty(before.history[type]))
after.history[type] = before.history[type].concat(after.history[type]);
})
_.each(['habits','dailys'], function(type){
_.each(after[type], function(t){
t.history = _.filter(t.history, filterNaNs);
var found = before && _.find(before[type],{id:t.id});
if (found && found.history) t.history = found.history.concat(t.history);
})
})
liveUsers.update({_id:after._id}, {$set:{history:after.history, dailys:after.dailys, habits:after.habits, migration:'20131221_restore_NaN_history'}, $inc:{_v:1}});
//if (--count <= 0) console.log("DONE! " + after._id);
if (++count%1000 == 0) console.log(count);
if (after._id == '9') console.log('lefnire processed');
})
});