Paranoid Documents for Mongoid 6
Latest commit e0c6608 Jul 13, 2016 @Fudoshiki Fudoshiki allow mongoid 6.0.0.beta

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Mongoid::Paranoia enables a "soft delete" of Mongoid documents. Instead of being removed from the database, paranoid docs are flagged with a deleted_at timestamp and are ignored from queries by default.

The Mongoid::Paranoia functionality was originally supported in Mongoid itself, but was dropped from version 4.0.0 onwards. This gem was extracted from the Mongoid 3.0.0-stable branch. This gem should not be used with Mongoid versions 3.x and prior. Current master branch targeted on Mongoid 6.0. With release 0.3.0 Mongoid 4 and 5 versions will be dropped.

Caution: This repo/gem mongoid_paranoia (underscored) is different than mongoid-paranoia (hyphenated). The goal of mongoid-paranoia (hyphenated) is to stay API compatible and it only accepts security fixes.


Add this line to your application's Gemfile:

gem 'mongoid_paranoia'


class Person
  include Mongoid::Document
  include Mongoid::Paranoia

person.delete   # Sets the deleted_at field to the current time, ignoring callbacks.
person.delete!  # Permanently deletes the document, ignoring callbacks.
person.destroy  # Sets the deleted_at field to the current time, firing callbacks.
person.destroy! # Permanently deletes the document, firing callbacks.
person.restore  # Brings the "deleted" document back to life.
person.restore(:recursive => true) # Brings "deleted" associated documents back to life recursively

The documents that have been "flagged" as deleted (soft deleted) can be accessed at any time by calling the deleted class method on the class.

Person.deleted # Returns documents that have been "flagged" as deleted.

You can also access all documents (both deleted and non-deleted) at any time by using the unscoped class method:

Person.unscoped.all # Returns all documents, both deleted and non-deleted

You can also configure the paranoid field naming on a global basis. Within the context of a Rails app this is done via an initializer.

# config/initializers/mongoid_paranoid.rb

Mongoid::Paranoia.configure do |c|
  c.paranoid_field = :myFieldName


You need override uniqueness validates

validates :title, uniqueness: { conditions: -> { where(deleted_at: nil) } }



before_restore, after_restore and around_restore callbacks are added to your model. They work similarly to the before_destroy, after_destroy and around_destroy callbacks.


before_remove, after_remove and around_remove are added to your model. They are called when record is deleted permanently .


class User
  include Mongoid::Document
  include Mongoid::Paranoia

  before_restore :before_restore_action
  after_restore  :after_restore_action
  around_restore :around_restore_action


  def before_restore_action
    puts "BEFORE"

  def after_restore_action
    puts "AFTER"

  def around_restore_action
    puts "AROUND - BEFORE"
    yield # restoring
    puts "AROUND - AFTER"




  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request