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[#1712] restore streaks, values, dates, tags that got lost in the

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challenges migration
This commit is contained in:
Tyler Renelle 2013-11-04 01:41:23 -08:00
parent 4f52c7e15d
commit f467dcb3c9
1 changed files with 54 additions and 0 deletions
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migrations/20131104_restore_lost_task_data.js Normal file
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// node .migrations/20131104_restore_lost_task_data.js
/**
* After the great challenges migration, quite a few things got inadvertently dropped from tasks since their
* schemas became more strict. See conversation at https://github.com/HabitRPG/habitrpg/issues/1712 ,
* this restores task tags, streaks, due-dates, values
*/
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_new?auto_reconnect').collection('users');
backupUsers.count(function(err, count){
if (err) return console.error(err);
backupUsers.findEach({}, {batchSize:10}, function(err, before){
if (err) return console.error(err);
if (!before) return console.log('!before');
liveUsers.findById(before._id, function(err, after){
if (err) return console.error(err);
if (!after) {
count--;
return console.log(before._id + ' deleted?');
}
if (before._id == '9') console.log('lefnire processed');
_.each(before.tasks, function(tBefore){
var tAfter = _.find(after[tBefore.type+'s'], {id:tBefore.id});
if (!tAfter) return; // task has been deleted since launch
// Restore deleted tags
if (!_.isEmpty(tBefore.tags) && _.isEmpty(tAfter.tags))
tAfter.tags = tBefore.tags;
// Except tags which are no longer available on the updated user
_.each(tAfter.tags, function(v,k){ //value is true, key is tag.id
if (!_.find(after.tags,{id:k})) delete tAfter.tags[k];
})
// Restore deleted streaks
if (+tBefore.streak > tAfter.streak)
tAfter.streak = +tBefore.streak;
if (!!tBefore.date && !tAfter.date)
tAfter.date = tBefore.date;
// Restore deleted values
if (+tBefore.value != 0 && tAfter.value == 0)
tAfter.value = +tBefore.value;
})
after._v++;
liveUsers.update({_id:after._id}, after);
if (--count <= 0) console.log("DONE!");
})
});
});