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Audited (previously acts_as_audited) is an ORM extension that logs all changes to your models. Audited also allows you to record who made those changes, save comments and associate models related to the changes.

Audited currently (4.x) works with Rails 4.2. For Rails 3, use gem version 3.0 or see the 3.0-stable branch.

Supported Rubies

Audited supports and is tested against the following Ruby versions:

  • 2.0.0
  • 2.1.5
  • 2.2.0

Audited may work just fine with a Ruby version not listed above, but we can’t guarantee that it will. If you’d like to maintain a Ruby that isn’t listed, please let us know with a pull request.

Supported ORMs

In a previous life, Audited was ActiveRecord-only. Audited will now audit models for the following backends:

  • ActiveRecord
  • MongoMapper

Installation

The installation process depends on what ORM your app is using.

ActiveRecord

Add the appropriate gem to your Gemfile:

ruby gem "audited-activerecord", "~> 4.0"

Then, from your Rails app directory, create the audits table:

bash $ rails generate audited:install $ rake db:migrate

Upgrading

If you’re already using Audited (or acts_as_audited), your audits table may require additional columns. After every upgrade, please run:

bash $ rails generate audited:upgrade $ rake db:migrate

Upgrading will only make changes if changes are needed.

MongoMapper

ruby gem "audited-mongo_mapper", "~> 4.0"

Usage

Simply call audited on your models:

ruby class User < ActiveRecord::Base audited end

By default, whenever a user is created, updated or destroyed, a new audit is created.

ruby user = User.create!(:name => "Steve") user.audits.count # => 1 user.update_attributes!(:name => "Ryan") user.audits.count # => 2 user.destroy user.audits.count # => 3

Audits contain information regarding what action was taken on the model and what changes were made.

ruby user.update_attributes!(:name => "Ryan") audit = user.audits.last audit.action # => "update" audit.audited_changes # => {"name"=>["Steve", "Ryan"]}

Specifying columns

By default, a new audit is created for any attribute changes. You can, however, limit the columns to be considered.

```ruby class User < ActiveRecord::Base # All fields # audited

# Single field # audited only: :name

# Multiple fields # audited only: [:name, :address]

# All except certain fields # audited except: :password end ```

Specifying callbacks

By default, a new audit is created for any Create, Update or Destroy action. You can, however, limit the actions audited.

```ruby class User < ActiveRecord::Base # All fields and actions # audited

# Single field, only audit Update and Destroy (not Create) # audited only: :name, on: [:update, :destroy] end ```

Comments

You can attach comments to each audit using an audit_comment attribute on your model.

ruby user.update_attributes!(:name => "Ryan", :audit_comment => "Changing name, just because") user.audits.last.comment # => "Changing name, just because"

You can optionally add the :comment_required option to your audited call to require comments for all audits.

ruby class User < ActiveRecord::Base audited :comment_required => true end

Current User Tracking

If you’re using Audited in a Rails application, all audited changes made within a request will automatically be attributed to the current user. By default, Audited uses the current_user method in your controller.

class PostsController < ApplicationController def create current_user # => #<User name: "Steve"> @post = Post.create(params[:post]) @post.audits.last.user # => #<User name: "Steve"> end end

To use a method other than current_user, put the following in an initializer:

ruby Audited.current_user_method = :authenticated_user

Outside of a request, Audited can still record the user with the as_user method:

ruby Audited.audit_class.as_user(User.find(1)) do post.update_attribute!(:title => "Hello, world!") end post.audits.last.user # => #<User id: 1>

Associated Audits

Sometimes it’s useful to associate an audit with a model other than the one being changed. For instance, given the following models:

```ruby class User < ActiveRecord::Base belongs_to :company audited end

class Company < ActiveRecord::Base has_many :users end ```

Every change to a user is audited, but what if you want to grab all of the audits of users belonging to a particular company? You can add the :associated_with option to your audited call:

```ruby class User < ActiveRecord::Base belongs_to :company audited :associated_with => :company end

class Company < ActiveRecord::Base has_many :users has_associated_audits end ```

Now, when a audit is created for a user, that user’s company is also saved alongside the audit. This makes it much easier (and faster) to access audits indirectly related to a company.

ruby company = Company.create!(:name => "Collective Idea") user = company.users.create!(:name => "Steve") user.update_attribute!(:name => "Steve Richert") user.audits.last.associated # => #<Company name: "Collective Idea"> company.associated_audits.last.auditable # => #<User name: "Steve Richert">

Disabling auditing

If you want to disable auditing temporarily doing certain tasks, there are a few methods available.

To disable auditing on a save:

ruby @user.save_without_auditing

or:

ruby @user.without_auditing do @user.save end

To disable auditing on a column:

ruby User.non_audited_columns = [:first_name, :last_name]

To disable auditing on an entire model:

ruby User.auditing_enabled = false

Gotchas

Using attr_protected or strong_parameters

Audited assumes you are using attr_accessible. If you’re using attr_protected or strong_parameters, you’ll have to take an extra step or two.

If you’re using strong_parameters with Rails 3.x, be sure to add :allow_mass_assignment => true to your audited call; otherwise Audited will interfere with strong_parameters and none of your save calls will work.

ruby class User < ActiveRecord::Base audited :allow_mass_assignment => true end

If using attr_protected, add :allow_mass_assignment => true, and also be sure to add audit_ids to the list of protected attributes to prevent data loss.

ruby class User < ActiveRecord::Base audited :allow_mass_assignment => true attr_protected :logins, :audit_ids end

MongoMapper Embedded Documents

Currently, Audited does not track changes on embedded documents. Audited works by tracking a model’s dirty changes but changes to embedded documents don’t appear in dirty tracking.

Support

You can find documentation at: http://rdoc.info/github/collectiveidea/audited

Or join the mailing list to get help or offer suggestions.

Contributing

In the spirit of free software, everyone is encouraged to help improve this project. Here are a few ways you can pitch in:

  • Use prerelease versions of Audited.
  • Report bugs.
  • Fix bugs and submit pull requests.
  • Write, clarify or fix documentation.
  • Refactor code.