Adding state_machine events to link_to

index.html.erb

enable: <%= link_to 'Enable', user_update_state_path(user.id, state_event: 'register', access_state_event: 'enable') %><br>
disable: <%= link_to 'disable', user_update_state_path(user.id, state_event: 'unregister', access_state_event: 'disable') %>

route.rb

State::Application.routes.draw do
  resources :users do
    get :update_state
  end

schema.rb

ActiveRecord::Schema.define(:version => 20130606103331) do

  create_table "users", :force => true do |t|
    t.string   "name"
    t.string   "state"
    t.string   "access_state"
    t.datetime "created_at",   :null => false
    t.datetime "updated_at",   :null => false
  end

end

user.rb

class User < ActiveRecord::Base
  attr_accessible :access_state, :name, :state, :state_event, :access_state_event
  validates_presence_of :name, :state, :access_state

  state_machine :initial => :unregistered do
    event :register do
      transition :unregistered => :registered
    end

    event :unregister do
      transition :registered => :unregistered
    end
  end

  state_machine :access_state, :initial => :enabled do
    event :enable do
      transition all => :enabled
    end

    event :disable do
      transition all => :disabled
    end
  end

end

users_controller.rb

  def update_state
    #render :text => params.inspect
    logger.info params.to_yaml
    @user = User.find(params[:user_id])
    @user.access_state_event = params[:access_state_event]
    @user.state_event = params[:state_event]

    respond_to do |format|
      if @user.save
        format.html { redirect_to users_path, notice: 'User was successfully updated.' }
      else
        format.html { redirect_to users_path, notice: 'System error [user.update_state].' }
      end
    end

  end