# record_history

ActiveRecord history

## Installation

```
gem install record_history
```

## Usage

  # activate history logging for model
  class Item < ActiveRecord::Base
    has_record_history
  end

  # activate history logging for model (only for "name" field)
  class Item < ActiveRecord::Base
    has_record_history :only => [:name]
  end

  # activate history logging for model (except 'name' field)
  class Item < ActiveRecord::Base
    has_record_history :ignore => [:name]
  end

  # activate history logging for model (on update)
  class Item < ActiveRecord::Base
    has_record_history :on => [:update]
  end

  # get history for object
  item = Item.first
  history = item.first.record_history
  history.first.old_value
  hostory.first.new_value


  # declare that User is author for some record_history items
  class User < ActiveRecord::Base
    is_record_history_author
  end

  # get record_history items created by user
  User.first.written_history