Mongoose Delete Plugin

mongoose-delete is simple and lightweight plugin that enables soft deletion of documents in MongoDB. This code is based on riyadhalnur's plugin mongoose-softdelete.

##Features

• Add deleted (true-false) key on document
• Add deletedAt key to store time of deletion
• Add deletedBy key to record who deleted document
• Restore deleted documents using restore method
• Bulk delete and restore
• Option to override static methods (count, find, findOne, findOneAndUpdate, update)
• For overridden methods we have two additional methods: methodDeleted and methodWithDeleted
• Disable model validation on delete

Installation

Install using npm

npm install mongoose-delete

Usage

We can use this plugin with or without options.

Simple usage

var mongoose_delete = require('mongoose-delete');

var PetSchema = new Schema({
    name: String
});

PetSchema.plugin(mongoose_delete);

var Pet = mongoose.model('Pet', PetSchema);

var fluffy = new Pet({ name: 'Fluffy' });

fluffy.save(function () {
    // mongodb: { deleted: false, name: 'Fluffy' }

    fluffy.delete(function () {
        // mongodb: { deleted: true, name: 'Fluffy' }

        fluffy.restore(function () {
            // mongodb: { deleted: false, name: 'Fluffy' }
        });
    });

});

Save time of deletion

var mongoose_delete = require('mongoose-delete');

var PetSchema = new Schema({
    name: String
});

PetSchema.plugin(mongoose_delete, { deletedAt : true });

var Pet = mongoose.model('Pet', PetSchema);

var fluffy = new Pet({ name: 'Fluffy' });

fluffy.save(function () {
    // mongodb: { deleted: false, name: 'Fluffy' }

    fluffy.delete(function () {
        // mongodb: { deleted: true, name: 'Fluffy', deletedAt: ISODate("2014-08-01T10:34:53.171Z")}

        fluffy.restore(function () {
            // mongodb: { deleted: false, name: 'Fluffy' }
        });
    });

});

Who has deleted the data?

var mongoose_delete = require('mongoose-delete');

var PetSchema = new Schema({
    name: String
});

PetSchema.plugin(mongoose_delete, { deletedBy : true });

var Pet = mongoose.model('Pet', PetSchema);

var fluffy = new Pet({ name: 'Fluffy' });

fluffy.save(function () {
    // mongodb: { deleted: false, name: 'Fluffy' }

    var idUser = mongoose.Types.ObjectId("53da93b16b4a6670076b16bf");

    fluffy.delete(idUser, function () {
        // mongodb: { deleted: true, name: 'Fluffy', deletedBy: ObjectId("53da93b16b4a6670076b16bf")}

        fluffy.restore(function () {
            // mongodb: { deleted: false, name: 'Fluffy' }
        });
    });

});

Bulk delete and restore

var mongoose_delete = require('mongoose-delete');

var PetSchema = new Schema({
    name: String,
    age: Number
});

PetSchema.plugin(mongoose_delete);

var Pet = mongoose.model('Pet', PetSchema);

var idUser = mongoose.Types.ObjectId("53da93b16b4a6670076b16bf");

// Delete multiple object, callback
Pet.delete(function (err, result) { ... });
Pet.delete({age:10}, function (err, result) { ... });
Pet.delete({}, idUser, function (err, result) { ... });
Pet.delete({age:10}, idUser, function (err, result) { ... });

// Delete multiple object, promise
Pet.delete().exec(function (err, result) { ... });
Pet.delete({age:10}).exec(function (err, result) { ... });
Pet.delete({}, idUser).exec(function (err, result) { ... });
Pet.delete({age:10}, idUser).exec(function (err, result) { ... });

// Restore multiple object, callback
Pet.restore(function (err, result) { ... });
Pet.restore({age:10}, function (err, result) { ... });

// Restore multiple object, promise
Pet.restore().exec(function (err, result) { ... });
Pet.restore({age:10}).exec(function (err, result) { ... });

Method overridden

We have the option to override all standard methods or only specific methods. Overridden methods will exclude deleted documents from results, documents that have deleted = true. Every overridden method will have two additional methods, so we will be able to work with deleted documents.

only not deleted documents	only deleted documents	all documents
count()	countDeleted	countWithDeleted
find()	findDeleted	findWithDeleted
findOne()	findOneDeleted	findOneWithDeleted
findOneAndUpdate()	findOneAndUpdateDeleted	findOneAndUpdateWithDeleted
update()	updateDeleted	updateWithDeleted

Examples how to override one or multiple methods

var mongoose_delete = require('mongoose-delete');

var PetSchema = new Schema({
    name: String
});

// Override all methods
PetSchema.plugin(mongoose_delete, { overrideMethods: 'all' });
// or 
PetSchema.plugin(mongoose_delete, { overrideMethods: true });

// Overide only specific methods
PetSchema.plugin(mongoose_delete, { overrideMethods: ['count', 'find', 'findOne', 'findOneAndUpdate', 'update'] });
// or
PetSchema.plugin(mongoose_delete, { overrideMethods: ['count', 'find'] });
// or (unrecognized method names will be ignored)
PetSchema.plugin(mongoose_delete, { overrideMethods: ['count', 'find', 'errorXyz'] });


var Pet = mongoose.model('Pet', PetSchema);

// Example of usage overridden methods

Pet.find(function (err, documents) {
  // will return only NOT DELETED documents
});

Pet.findDeleted(function (err, documents) {
  // will return only DELETED documents
});

Pet.findWithDeleted(function (err, documents) {
  // will return ALL documents
});

Disable model validation on delete

var mongoose_delete = require('mongoose-delete');

var PetSchema = new Schema({
    name: { type: String, required: true }
});

// By default, validateBeforeDelete is set to true
PetSchema.plugin(mongoose_delete);
// the previous line is identical to next line
PetSchema.plugin(mongoose_delete, { validateBeforeDelete: true });

// To disable model validation on delete, set validateBeforeDelete option to false
PetSchema.plugin(mongoose_delete, { validateBeforeDelete: false });

// NOTE: This is based on existing Mongoose validateBeforeSave option
// http://mongoosejs.com/docs/guide.html#validateBeforeSave

License

The MIT License

Copyright (c) 2014 Sanel Deljkic http://dsanel.github.io/

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.