state_machine gem интеграция с рельсами 4

Question

У меня возникла проблема с использованием драгоценного камня state_machine с моим рельсом 4 приложения. А имеют модели, которые включают состояние колонки вызова, как описано в предоставленном рельсы учебник http://gistflow.com/posts/679-state-machine-with-rails-basics

но когда я определяю мой state_machine следующим образом:

class Issue < ActiveRecord::Base 
validates :title, :description, presence: true 
has_many :notes 

state_machine :initial => :new do 
    state :new, value: 0 
    state :analysed, value: 1 
    state :assigned, value: 2 
    state :inprogress, value: 3 
    state :inreview, value: 4 
    state :validation, value: 5 
    state :resolved, value: 6 
    state :cancelled, value: 7 
    state :closed, value: 8 
    state :rejected, value: 9 
    state :reopened, value: 10 
end 

def next 
    Issue.where("id > ?", self.id).first || Issue.first 
end 

def prev 
    Issue.where("id < ?", self.id).last || Issue.last 
end 
end 

Вот мой IssueConntroller

class IssuesController < ApplicationController 

before_filter :find_issue, except: [:index, :new, :create] 

def index 
    @issues = Issue.all 
end 

def new 
    @issue = Issue.new 
end 

def create 
    @issue = Issue.new(issue_params) 
    respond_to do |format| 
     if @issue.save 
      format.html {redirect_to @issue, :flash => { :success => "Issue succesfully created." } } 
      format.json {head :no_content} 
     else 
      format.html {render action: 'new'} 
      format.json { render json: @issue.errors, status: :unprocessable_entity } 
     end 

    end 
end 

def show 
    @note = Note.new 
    @note.issue_id = @issue.id 
end 

def edit 
end 

def update 
    respond_to do |format| 
     if @issue.update(issue_params) 
     format.html { redirect_to @issue, :flash => { :success => 'Issue was successfully updated.' }} 
     format.json { head :no_content } 
     else 
     format.html { render action: 'edit' } 
     format.json { render json: @issue.errors, status: :unprocessable_entity } 
     end 
    end 
end 

def destroy 
    @issue.destroy 

    flash[:error]= "Issue '#{@issue.title}' Deleted!" 

    redirect_to issues_path 
end 

private 
def issue_params 
    params.require(:issue).permit(:title, :description) 

end 

def find_issue 
    @issue = Issue.find(params[:id]) 
end 

end 

Я попадаю в неопределенный метод `state_machine 'для # NoMethodError в indexController # index. , конечно, я добавил gem 'state_machine line в мой gemfile и запускаю команду установки пакета. Похоже, что драгоценный камень не загружен приложением рельсы ...

Спасибо за помощь мне с этой проблемой;)

здесь след

activerecord (4.0.0) lib/active_record/dynamic_matchers.rb:22:in `method_missing' 
app/models/issue.rb:5:in `<class:Issue>' 
app/models/issue.rb:1:in `<top (required)>' 
activesupport (4.0.0) lib/active_support/dependencies.rb:423:in `load' 
activesupport (4.0.0) lib/active_support/dependencies.rb:423:in `block in load_file' 
activesupport (4.0.0) lib/active_support/dependencies.rb:615:in `new_constants_in' 
activesupport (4.0.0) lib/active_support/dependencies.rb:422:in `load_file' 
activesupport (4.0.0) lib/active_support/dependencies.rb:323:in `require_or_load' 
activesupport (4.0.0) lib/active_support/dependencies.rb:462:in `load_missing_constant' 
activesupport (4.0.0) lib/active_support/dependencies.rb:183:in `const_missing' 
activesupport (4.0.0) lib/active_support/dependencies.rb:494:in `load_missing_constant' 
activesupport (4.0.0) lib/active_support/dependencies.rb:183:in `const_missing' 
app/controllers/issues_controller.rb:6:in `index' 
actionpack (4.0.0) lib/action_controller/metal/implicit_render.rb:4:in `send_action' 
actionpack (4.0.0) lib/abstract_controller/base.rb:189:in `process_action' 
actionpack (4.0.0) lib/action_controller/metal/rendering.rb:10:in `process_action' 
actionpack (4.0.0) lib/abstract_controller/callbacks.rb:18:in `block in process_action' 
activesupport (4.0.0) lib/active_support/callbacks.rb:413:in `_run__901873103026712443__process_action__callbacks' 
activesupport (4.0.0) lib/active_support/callbacks.rb:80:in `run_callbacks' 
actionpack (4.0.0) lib/abstract_controller/callbacks.rb:17:in `process_action' 
actionpack (4.0.0) lib/action_controller/metal/rescue.rb:29:in `process_action' 
actionpack (4.0.0) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action' 
activesupport (4.0.0) lib/active_support/notifications.rb:159:in `block in instrument' 
activesupport (4.0.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
activesupport (4.0.0) lib/active_support/notifications.rb:159:in `instrument' 
actionpack (4.0.0) lib/action_controller/metal/instrumentation.rb:30:in `process_action' 
actionpack (4.0.0) lib/action_controller/metal/params_wrapper.rb:245:in `process_action' 
activerecord (4.0.0) lib/active_record/railties/controller_runtime.rb:18:in `process_action' 
actionpack (4.0.0) lib/abstract_controller/base.rb:136:in `process' 
actionpack (4.0.0) lib/abstract_controller/rendering.rb:44:in `process' 
actionpack (4.0.0) lib/action_controller/metal.rb:195:in `dispatch' 
actionpack (4.0.0) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch' 
actionpack (4.0.0) lib/action_controller/metal.rb:231:in `block in action' 
actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:80:in `call' 
actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:80:in `dispatch' 
actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:48:in `call' 
actionpack (4.0.0) lib/action_dispatch/journey/router.rb:71:in `block in call' 
actionpack (4.0.0) lib/action_dispatch/journey/router.rb:59:in `each' 
actionpack (4.0.0) lib/action_dispatch/journey/router.rb:59:in `call' 
actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:655:in `call' 
rack (1.5.2) lib/rack/etag.rb:23:in `call' 
rack (1.5.2) lib/rack/conditionalget.rb:25:in `call' 
rack (1.5.2) lib/rack/head.rb:11:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/params_parser.rb:27:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/flash.rb:241:in `call' 
rack (1.5.2) lib/rack/session/abstract/id.rb:225:in `context' 
rack (1.5.2) lib/rack/session/abstract/id.rb:220:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/cookies.rb:486:in `call' 
activerecord (4.0.0) lib/active_record/query_cache.rb:36:in `call' 
activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:626:in `call' 
activerecord (4.0.0) lib/active_record/migration.rb:369:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' 
activesupport (4.0.0) lib/active_support/callbacks.rb:373:in `_run__77618213725076532__call__callbacks' 
activesupport (4.0.0) lib/active_support/callbacks.rb:80:in `run_callbacks' 
actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
actionpack (4.0.0) li/content_length.rb:14:in `call' 
rack (1.5.2) lib/rack/handler/webrick.rb:60:in `service' 
/Users/sebmac/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/webrick/httpserver.rb:138:in `service' 
/Users/sebmac/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/webrick/httpserver.rb:94:in `run' 
/Users/sebmac/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread'b/action_dispatch/middleware/static.rb:64:in `call' 
railties (4.0.0) lib/rails/engine.rb:511:in `call' 
railties (4.0.0) lib/rails/application.rb:97:in `call' 
rack (1.5.2) lib/rack/lock.rb:17:in `call' 
rack (1.5.2) lib/rack/content_length.rb:14:in `call' 
rack (1.5.2) lib/rack/handler/webrick.rb:60:in `service' 
/Users/sebmac/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/webrick/httpserver.rb:138:in `service' 
/Users/sebmac/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/webrick/httpserver.rb:94:in `run' 
/Users/sebmac/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread' 

Answer 1

Там нет проблем в вас код, попробуйте перегрузочной сервер после расслоения, не забудьте добавить state:string или ìnteger, так как вы используете значение для государства, модели и конечно же событие как

event :add_new do 
     transition new: :analysed 
    end 

как определение состояния машины: переход форма состояния к другому

в rails c вы можете вызвать некоторый метод для государственной машины

Issue.first.state_name 
    Issue.first.state_events 
    .... 

если вы все еще есть проблемы, попробуйте объяснить более :)