Keeps a history of all changes of a document.
npm install mongoose-history
Or add it to your package.json
For starting history of your collection, you need to simply add the mongoose-history plugin:
var mongoose =mongooseHistory =Schema = mongooseSchemavar Post =title: Stringmessage: Stringupdated_for: StringPost
The plugin will create a new collection with format: originalCollectionName + _history, in example: posts_history. You can also change the name of the collection by setting the configuration customCollectionName:
var options = customCollectionName: "post_hst"Post
The history documents have the format:
_id: ObjectIdt: Date // when history was madeo: "i" insert | "u" update | "r" remove // what happens with documentd: // changed document data_id: ObjectIdtitle: Stringmessage: Stringupdated_for: String
To improve queries perfomance in history collection you can define indexes, for example:
var options = indexes: 't': -1 'd._id': 1;Post
You can keep your history collection far away from your primary database or replica set. This can be useful for improve the architecture of your system.
Just create another connection to the new database and link the reference in historyConnection:
var secondConn = mongoose;var options = historyConnection: secondConnPost
All modules with history plugin have following methods:
Get History Model of Model;
Clear all History collection;
Copyright (c) 2013, Nassor Paulino da Silva firstname.lastname@example.org All rights reserved.
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