Historical

A Mongoose plugin that archives document diffs and manages document history.

Historical requires a primary key (typically _id) to be present in your schema.

Installation

npm install historical@^2.0.0

Getting Started

Attach the plugin to your schema with any of these optional configuration parameters:

• name: Provide a collection name. Defaults to <collection>_historicals.
• connection: Provide a mongoose connection for the historical collection. Defaults to your schema's connection.
• primaryKeyName: Provide your schema's primary key name. Defaults to _id.
• primaryKeyType: Provide your schema's primary key type. Defaults to your schema's primary key field configuration.
• ignore: An array of field names to ignore. Fields included in this list will not be stored in history.

var mongoose  = require('mongoose'),
ExampleSchema = new mongoose.Schema({
    myField: String,
    ignoredField: String,
    anotherIgnoredField: String
});

ExampleSchema.plugin(require('historical'), {
    connection: mongoose.createConnection('mongodb://localhost/example'),
    name: null,
    primaryKeyName: null,
    primaryKeyType: null,
    ignore: ['ignoredField', 'anotherIgnoredField']
});

Document #historicalDetails()

List historical documents up to the given date for a document.

myDocument.historicalDetails(new Date('2010-08-17T12:09:36'), function(e, objs){
   //the list of historical changes for my document
   console.log(objs);
});

Document #historicalRestore()

Returns a document as it was at the given date.

myDocument.historicalRestore(new Date('2010-08-17T12:09:36'), function(e, obj){
   //my document as it was in 2010
   //or null, if it either had not yet been created or was deleted before this time
   if(obj) {
      obj.save();
   }
});

Document #historicalTrim()

Creates a new historical document by flattening history up to the given date, and deletes the touched historical documents. Useful for pruning or establishing a maximum history retention period.

myDocument.historicalTrim(new Date('2010-08-17T12:09:36'), function(e, obj){
   //any history before this time has been flattened into one historical document
   //my document as it was provided
   console.log(obj);
});

Document #historicalSnapshot()

Take a complete and current snapshot of my document and store it in history. Unmodified documents only.

myDocument.historicalSnapshot(function(e, obj){
   //my document as it was provided
   console.log(obj);
});

Document #historicalClear()

Clear all history for my document and take a snapshot. Unmodified documents only.

myDocument.historicalClear(function(e, obj){
   //my document as it was provided
   console.log(obj);
});