在heroku上保存活動管理記錄不起作用

我在我的Rails應用中使用active_admin。當我嘗試爲PostCategory模型添加新記錄時，它不起作用。在heroku上保存活動管理記錄不起作用

我可以在Heroku上添加其他模型，但只有PostCategory不起作用。在我的本地機器上可以添加所有型號，包括PostCategory。

有時日誌文件會顯示500內部錯誤。

我的Heroku的日誌：

2014-05-25T17:27:30.946410+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:82:in `run_callbacks' 
2014-05-25T17:27:30.946411+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activemodel-4.1.0/lib/active_model/validations/callbacks.rb:111:in `run_validations!' 
2014-05-25T17:27:30.946413+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activemodel-4.1.0/lib/active_model/validations.rb:317:in `valid?' 
2014-05-25T17:27:30.946414+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.1.0/lib/active_record/validations.rb:70:in `valid?' 
2014-05-25T17:27:30.946416+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.1.0/lib/active_record/validations.rb:77:in `perform_validations' 
2014-05-25T17:27:30.946417+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.1.0/lib/active_record/validations.rb:51:in `save' 
2014-05-25T17:27:30.946464+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/abstract_controller/callbacks.rb:20:in `block in process_action' 
2014-05-25T17:27:30.946418+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.1.0/lib/active_record/attribute_methods/dirty.rb:21:in `save' 
2014-05-25T17:27:30.946420+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.1.0/lib/active_record/transactions.rb:268:in `block (2 levels) in save' 
2014-05-25T17:27:30.946435+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.1.0/lib/active_record/transactions.rb:267:in `save' 
2014-05-25T17:27:30.946437+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/bundler/gems/active_admin-ad33a0f6c772/lib/active_admin/resource_controller/data_access.rb:160:in `block in save_resource' 
2014-05-25T17:27:30.946439+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/core_ext/object/try.rb:45:in `call' 
2014-05-25T17:27:30.946440+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/core_ext/object/try.rb:45:in `public_send' 
2014-05-25T17:27:30.946441+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/core_ext/object/try.rb:45:in `try' 
2014-05-25T17:27:30.946446+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/bundler/gems/active_admin-ad33a0f6c772/lib/active_admin/callbacks.rb:79:in `block (2 levels) in define_active_admin_callbacks' 
2014-05-25T17:27:30.946470+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:166:in `call' 
2014-05-25T17:27:30.946448+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/bundler/gems/active_admin-ad33a0f6c772/lib/active_admin/resource_controller/data_access.rb:159:in `save_resource' 
2014-05-25T17:27:30.946472+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:166:in `call' 
2014-05-25T17:27:30.946422+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.1.0/lib/active_record/transactions.rb:329:in `block in with_transaction_returning_status' 
2014-05-25T17:27:30.946450+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/bundler/gems/active_admin-ad33a0f6c772/lib/active_admin/resource_controller/data_access.rb:149:in `block in create_resource' 
2014-05-25T17:27:30.946474+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:166:in `block in halting' 
2014-05-25T17:27:30.946475+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:229:in `call' 
2014-05-25T17:27:30.946476+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:229:in `block in halting' 
2014-05-25T17:27:30.946478+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:229:in `call' 
2014-05-25T17:27:30.946463+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_controller/metal/rendering.rb:10:in `process_action' 
2014-05-25T17:27:30.946461+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/abstract_controller/base.rb:189:in `process_action' 
2014-05-25T17:27:30.946466+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:113:in `call' 
2014-05-25T17:27:30.946467+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:113:in `call' 
2014-05-25T17:27:30.946468+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:166:in `block in halting' 
2014-05-25T17:27:30.946471+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:166:in `block in halting' 
2014-05-25T17:27:30.946479+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:229:in `block in halting' 
2014-05-25T17:27:30.946480+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:166:in `call' 
2014-05-25T17:27:30.946484+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:166:in `block in halting' 
2014-05-25T17:27:30.946482+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:166:in `block in halting' 
2014-05-25T17:27:30.946487+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:166:in `block in halting' 
2014-05-25T17:27:30.946489+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:86:in `call' 
2014-05-25T17:27:30.946483+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:166:in `call' 
2014-05-25T17:27:30.946486+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:166:in `call' 
2014-05-25T17:27:30.946493+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_controller/metal/rescue.rb:29:in `process_action' 
2014-05-25T17:27:30.946490+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:86:in `run_callbacks' 
2014-05-25T17:27:30.946492+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/abstract_controller/callbacks.rb:19:in `process_action' 
2014-05-25T17:27:30.946495+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_controller/metal/instrumentation.rb:31:in `block in process_action' 
2014-05-25T17:27:30.946511+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_controller/metal.rb:195:in `dispatch' 
2014-05-25T17:27:30.946512+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_controller/metal/rack_delegation.rb:13:in `dispatch' 
2014-05-25T17:27:30.946514+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_controller/metal.rb:231:in `block in action' 
2014-05-25T17:27:30.946515+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/routing/route_set.rb:80:in `call' 
2014-05-25T17:27:30.946507+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.1.0/lib/active_record/railties/controller_runtime.rb:18:in `process_action' 
2014-05-25T17:27:30.946496+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/notifications.rb:159:in `block in instrument' 
2014-05-25T17:27:30.946500+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
2014-05-25T17:27:30.946502+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/notifications.rb:159:in `instrument' 
2014-05-25T17:27:30.946503+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_controller/metal/instrumentation.rb:30:in `process_action' 
2014-05-25T17:27:30.946505+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_controller/metal/params_wrapper.rb:250:in `process_action' 
2014-05-25T17:27:30.946508+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/abstract_controller/base.rb:136:in `process' 
2014-05-25T17:27:30.946510+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionview-4.1.0/lib/action_view/rendering.rb:30:in `process' 
2014-05-25T17:27:30.946517+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/routing/route_set.rb:80:in `dispatch' 
2014-05-25T17:27:30.946518+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/routing/route_set.rb:48:in `call' 
2014-05-25T17:27:30.946520+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/journey/router.rb:71:in `block in call' 
2014-05-25T17:27:30.946521+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/journey/router.rb:59:in `each' 
2014-05-25T17:27:30.946523+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/journey/router.rb:59:in `call' 
2014-05-25T17:27:30.946524+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/routing/route_set.rb:676:in `call' 
2014-05-25T17:27:30.946525+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/manager.rb:35:in `block in call' 
2014-05-25T17:27:30.946527+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/manager.rb:34:in `catch' 
2014-05-25T17:27:30.946528+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/manager.rb:34:in `call' 
2014-05-25T17:27:30.946530+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/etag.rb:23:in `call' 
2014-05-25T17:27:30.946532+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/conditionalget.rb:35:in `call' 
2014-05-25T17:27:30.946533+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/head.rb:11:in `call' 
2014-05-25T17:27:30.946534+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/params_parser.rb:27:in `call' 
2014-05-25T17:27:30.946536+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/flash.rb:254:in `call' 
2014-05-25T17:27:30.946537+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/session/abstract/id.rb:225:in `context' 
2014-05-25T17:27:30.946549+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/remote_ip.rb:76:in `call' 
2014-05-25T17:27:30.946539+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/session/abstract/id.rb:220:in `call' 
2014-05-25T17:27:30.946540+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/cookies.rb:560:in `call' 
2014-05-25T17:27:30.946542+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.1.0/lib/active_record/query_cache.rb:36:in `call' 
2014-05-25T17:27:30.946543+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.1.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:621:in `call' 
2014-05-25T17:27:30.946545+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' 
2014-05-25T17:27:30.946546+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/callbacks.rb:82:in `run_callbacks' 
2014-05-25T17:27:30.946548+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
2014-05-25T17:27:30.946550+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call' 
2014-05-25T17:27:30.946551+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/show_exceptions.rb:30:in `call' 
2014-05-25T17:27:30.946553+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.1.0/lib/rails/rack/logger.rb:38:in `call_app' 
2014-05-25T17:27:30.946554+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.1.0/lib/rails/rack/logger.rb:20:in `block in call' 
2014-05-25T17:27:30.946556+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/tagged_logging.rb:68:in `block in tagged' 
2014-05-25T17:27:30.946557+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/tagged_logging.rb:26:in `tagged' 
2014-05-25T17:27:30.946562+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/tagged_logging.rb:68:in `tagged' 
2014-05-25T17:27:30.946586+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.1.0/lib/rails/rack/logger.rb:20:in `call' 
2014-05-25T17:27:30.946587+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/request_id.rb:21:in `call' 
2014-05-25T17:27:30.946590+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/runtime.rb:17:in `call' 
2014-05-25T17:27:30.946589+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/methodoverride.rb:21:in `call' 
2014-05-25T17:27:30.946591+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/cache/strategy/local_cache_middleware.rb:26:in `call' 
2014-05-25T17:27:30.946593+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/static.rb:64:in `call' 
2014-05-25T17:27:30.946594+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/sendfile.rb:112:in `call' 
2014-05-25T17:27:30.946595+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.1.0/lib/rails/engine.rb:514:in `call' 
2014-05-25T17:27:30.946597+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.1.0/lib/rails/application.rb:144:in `call' 
2014-05-25T17:27:30.946599+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/lock.rb:17:in `call' 
2014-05-25T17:27:30.946600+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/content_length.rb:14:in `call' 
2014-05-25T17:27:30.946602+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/handler/webrick.rb:60:in `service' 
2014-05-25T17:27:30.946603+00:00 app[web.1]: vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/httpserver.rb:138:in `service' 
2014-05-25T17:27:30.946605+00:00 app[web.1]: vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/httpserver.rb:94:in `run' 
2014-05-25T17:27:30.946606+00:00 app[web.1]: vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread' 
2014-05-25T17:27:30.946618+00:00 app[web.1]: 
2014-05-25T17:27:30.946619+00:00 app[web.1]:

寶石文件

gem 'rails', '4.1.0' 
# Use sqlite3 as the database for Active Record 
gem 'sqlite3', group: :development 
# Use SCSS for stylesheets 
gem 'sass-rails', '~> 4.0.3' 
# Use Uglifier as compressor for JavaScript assets 
gem 'uglifier', '>= 1.3.0' 
# Use CoffeeScript for .js.coffee assets and views 
gem 'coffee-rails', '~> 4.0.0' 
# See https://github.com/sstephenson/execjs#readme for more supported runtimes 
# gem 'therubyracer', platforms: :ruby 

# Use jquery as the JavaScript library 
gem 'jquery-rails' 
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks 
gem 'turbolinks' 
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder 
gem 'jbuilder', '~> 2.0' 
# bundle exec rake doc:rails generates the API under doc/api. 
gem 'sdoc', '~> 0.4.0',   group: :doc 

# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring 
gem 'spring',  group: :development 

gem 'activeadmin', github: 'gregbell/active_admin' 

gem 'devise' 

gem 'rails_12factor', group: :production 

gem 'pg', group: :production 

gem 'debugger' 

gem 'pry', group: :development

post_category.rb：

ActiveAdmin.register PostCategory do 
    permit_params :title 

    index do 
    selectable_column 
    id_column 
    column :title 
    column :created_at 
    column :slug_url 

    actions 
    end 

    filter :created_at 


    form do |f| 
    f.inputs "PostCategory Details" do 
     f.input :title 
    end 
    f.actions 
    end 

    controller do 
     defaults :finder => :find_by_slug_url 
    end 

end

看到PostCategory Heroku的控制檯上

PostCategory(id: integer, title: string, created_at: datetime, updated_at: datetime, slug_url: string)

PostCategory型號：

class PostCategory < ActiveRecord::Base 
    validates_uniqueness_of :slug_url 
    before_save :before_save 

    private 
    def before_save 
     self.slug_url = self.title.downcase.strip.gsub(' ', '-').gsub(/[^\w-]/, '') 
    end 

    public 
    def to_param # overridden 
     slug_url 
    end 
end

來源

2014-05-25 erkan demir

很難說，但如果你能貼的形式，它看起來像驗證錯誤模型將更容易檢測到問題，任何方式檢查您的驗證和輸入可能會錯過一些東西。 – matanco

我添加了post_category控制器。只增加了標題。 –

'slug_url'它有什麼驗證？告訴我模型也 – matanco

讓你有多種問題：

變化def before_save成別的東西，這是軌方法不使用相同的名稱也使驗證這個稱號是不是空/無（現在？）之前嘗試使用downcase它，否則你會得到錯誤（未定義方法downcase爲零：nilClass）
我認爲你第一次嘗試它的工作如果你會詢問你會看到你的數據庫包含1條記錄，如果你將再次嘗試將無法正常工作提交因您的驗證validates_uniqueness_of :slug_url

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2014-05-25 18:35:34 matanco

是的，它的作品你是對的。我刪除了validates_uniqueness_of –

在heroku上保存活動管理記錄不起作用

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