Audited initializer to globally disable audits except when needed.

audited.rb

# Audited initializer to globally disable audits except when needed.
# https://gist.github.com/4392334
#
# Hacked from idea originally provided in issue:
# https://github.com/collectiveidea/audited/issues/18
# by Frost (github.com/Frost)
# 
# Modified by Doug Clark (github.com/dougc84)
#
# Add this in an initializer (audited.rb)
#
# This will disable site-wide auditing if you only have a few use cases,
# such as only tracking audits for admins, or on specific types of
# activities. See comments under AuditedInstanceMethods for
# usage examples.
#
module Audited::InstanceMethods
  private
  def write_audit(attrs)
    super if auditing_enabled && Audit.auditing_enabled?
  end
end

class Audit
  @@auditing_enabled = false

  def self.auditing_enabled?
    @@auditing_enabled
  end

  def self.disable_auditing
    @@auditing_enabled = false
  end

  def self.enable_auditing
    @@auditing_enabled = true
  end
end

module Audited::Auditor
  module AuditedInstanceMethods
    # Executes a save action on a model with auditing enabled.
    #
    #   object.something              => "one"
    #   object.something = "two"
    #   object.save
    #   object.audits.count           => 0
    #   object.something = "three"
    #   object.save_with_auditing
    #   object.audits.count           => 1
    #
    def save_with_auditing
      with_auditing { save }
    end

    # Executes a block with auditing enabled.
    #
    #   SomeObject.with_auditing do
    #     object = SomeObject.first
    #     object.something            => "one"
    #     object.audits.count         => 0
    #     object.update_attributes(params[:some_object])
    #   end
    #   SomeObject.first.audits.count => 1
    #
    def with_auditing(&block)
      self.class.with_auditing(&block)
    end
  end

  module AuditedClassMethods
    # Executes the block with auditing enabled.
    #
    #   Foo.with_auditing do
    #     @foo.save
    #   end
    #
    def with_auditing(&block)
      Audit.enable_auditing
      yield
      Audit.disable_auditing
    end
  end
  
end