Any examples of using Sinatra with acts_as_audited?

background: I am building a web app using Sinatra and ActiveRecord and I am keen to take advantage of acts_as_audited (as per https://github.com/collectiveidea/acts_as_audited). The docs for acts_as_audited assume I'll be using Rails and so assume I'll use Rails to generate the necessary migrations. I've not found any examples of using acts_as_audited with Sinatra.

So my question: Can someone point me at an example of using Sinatra and ActiveRecord with acts_as_audited?

Solution

I have been able to get this to work using the Audit.as_user method. Using this method lets you audit records as if the change were made by the user object you pass in.

Here is a simple example.

# This is my User model, I want to audit email address changes to it.
class User < ActiveRecord::Base
  acts_as_audited
  # user has :email attribute
  ...
end

# This is what I would call in my Sinatra code.
# user is an instance of my User class
...
Audit.as_user(user) do
  user.audit_comment = "updating email from sinatra"
  user.update_attribute(:email, 'foo@bar.com')
end
...

A more complex example...

# Now I have a User model and a Comments model and I 
# want to audit when I create a comment from Sinatra
class User < ActiveRecord::Base
  has_many :comments
  acts_as_audited
  ...
end

class Comment < ActiveRecord::Base
  belongs_to :user
  acts_as_audited
  # has a :body attribute
  ...
end

# This is what I would call in my Sinatra code.
# Again, user is an instance of my User class
...
Audit.as_user(user) do
  user.comments.create(
    :body => "Body of Comment", 
    :audit_comment => "Creating Comment from Sinatra"
  )
end