AasmHistory

Track and persist AASM state history.

This gem depends on Ruby >= 2.0.0.

Add this line to your application's Gemfile:

gem 'aasm_history'

Add migration:

create_table :state_histories do |t|
  t.string   :state
  t.string   :previous_state
  t.integer  :stateable_id
  t.string   :stateable_type
  t.datetime :created_at
  t.datetime :updated_at
end

It will create state history table - common for all classes.

Create StateHistory class

class StateHistory < ActiveRecord::Base
  belongs_to :stateable, polymorphic: true
end

Not supported.

Inside aasm block call has_history.

aasm do 
    has_history
    # ...
end

You can also call has_state_history in your model to create state_histories relation.

class Order
    aasm do
        has_history
        # ...
    end
    
    has_state_history
end

#> Order.last.state_histories
 [#<StateHistory id: 2, state: "in_production", previous_state: "new", stateable_id: 2, stateable_type: "Order", created_at: "2014-09-27 22:34:00", updated_at: "2014-09-27 22:34:00">]

In initializer you can set AasmHistory.enabled_by_default = true to make all AASM instances have history support by default (in other words no need to call has_history). To make exception call has_history(false) in aasm block.

Gem is highly extendable and configurable.

You are welcome to contribute with Pull Requests and new Issues!