审计的audited_changes混乱

Question

Im using collectiveidea's audited solution for auditing in rails. So, there's a column (audited_changes) that is a TEXT definition in the database. When i retrieve an audit from the database, i get a plain string, and when i call that attribute in the view is non formated string. In the rdocs it says that theres a serialized hash of all changes. How can i get this hash? Also, in the same docs it says that there's access to old_attributes and new_attributes, how is this?

In my view:

<%= @audit.action %> # => update
<%= @audit.audited_changes %> # => --- name: - oldname - newname code: - oldcode - newcode

Or any chance on formatting this?

Answer 1

I think there might currently be a bug in audited. Are you using 3.0.0rc1? That is what I am using and I had something similar happen. First off, it didn't seem to recognize "Audit" as an ActiveRecord object, so I created an empty model in app/models/audit.rb. Once I did that I was seeing the behaviour you are seeing. To fix it, I removed the app/models/audit.rb and added an config/initializers/audited.rb with this in it:

include Audited::Adapters::ActiveRecord

Answer 2

This is an old question but I have an alternative answer that seems to be working well for me using Rails 4.2. Instead of using the initializer in the above answer I suggest keeping the model and adding "serialize :audited_changes" to the top.

 class Audit < ActiveRecord::Base
   belongs_to :user
   serialize :audited_changes
 end

Answer 3

You could use the built-in Audited::Audit model to query its data.

For example,

audit = Audited::Audit.last
audit.audited_changes # => {"name"=>["Steve", "Ryan"]}

"Steve" is the old value, "Ryan" is the new value. By default, the hash is stored in yaml format in the database.