Undefinierte Methode "Neuordnung" für # mit ActiveAdmin

StackOverflow https://stackoverflow.com/questions/9384346

Frage

Ich habe ein Problem mit ActiveAdmin mit Ruby Ruby 1.9.2p290 und Ruby on Rails 3.2.1.

Ich habe diese Wiki-Seite verwendet, um die Ressource für die AdminUsers einzurichten, die perfekt funktioniert: Ihre erste Admin-Ressource: AdminUser

Danach wollte ich die Ressource für mein Projektmodell erstellen.Die Migrationen dafür sehen folgendermaßen aus: 

class CreateProjects < ActiveRecord::Migration
  def change
    create_table :projects do |t|
      t.string :name
      t.text :description
      t.boolean :isactive

      t.timestamps
    end
  end
end

class AddSlugToProjects < ActiveRecord::Migration
  def change
    add_column :projects, :slug, :string
    add_index :projects, :slug
  end
end

Mein Projektmodell: 

class Project < ActiveRecord::Base

  scope :isactive, :conditions => ["isactive = ?",true]

  extend FriendlyId
  friendly_id :name, use: [:slugged, :history]

  attr_accessible :name, :description, :isactive

end

Und das ist der project_controller: 

class ProjectsController < ApplicationController

  def index
    #
    # @projects gets filled in application_controller to be always
    # available for the twitter bootstrap navbar
    # @projects = Project.isactive.find(:all, :order => 'LOWER(name) asc')
    #
  end

  def show
    @project = Project.isactive.find(params[:id])
    if request.path != project_path(@project)
      redirect_to @project, :status => :moved_permanently
    end
  end

end

Die Datei admin / projects.rb ist derzeit 'leer' 

ActiveAdmin.register Project do  
end

Und nach all dem ist alles, was ich bekomme, der folgende Fehler: 

Started GET "/admin/projects" for 192.168.0.2 at 2012-02-21 20:58:49 +0100
Processing by Admin::ProjectsController#index as HTML
  Project Load (0.1ms)  SELECT "projects".* FROM "projects" WHERE (isactive = 't') ORDER BY LOWER(name) asc
  AdminUser Load (0.1ms)  SELECT "admin_users".* FROM "admin_users" WHERE "admin_users"."id" = 2 LIMIT 1
  Rendered /home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/activeadmin-0.4.1/app/views/active_admin/resource/index.html.arb (11.7ms)
Completed 500 Internal Server Error in 54ms

ActionView::Template::Error (undefined method `reorder' for #<Array:0xa3ecd44>):
    1: render renderer_for(:index)
  activeadmin (0.4.1) lib/active_admin/views/pages/index.rb:41:in `items_in_collection?'
  activeadmin (0.4.1) lib/active_admin/views/pages/index.rb:20:in `main_content'
  activeadmin (0.4.1) lib/active_admin/views/pages/base.rb:116:in `block (2 levels) in build_main_content_wrapper'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:68:in `block in build_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:96:in `with_current_dom_context'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:67:in `build_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:77:in `insert_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/html/element.rb:17:in `div'
  activeadmin (0.4.1) lib/active_admin/views/pages/base.rb:115:in `block in build_main_content_wrapper'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:68:in `block in build_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:96:in `with_current_dom_context'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:67:in `build_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:77:in `insert_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/html/element.rb:17:in `div'
  activeadmin (0.4.1) lib/active_admin/views/pages/base.rb:114:in `build_main_content_wrapper'
  activeadmin (0.4.1) lib/active_admin/views/pages/base.rb:98:in `block in build_page_content'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:68:in `block in build_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:96:in `with_current_dom_context'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:67:in `build_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:77:in `insert_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/html/element.rb:17:in `div'
  activeadmin (0.4.1) lib/active_admin/views/pages/base.rb:97:in `build_page_content'
  activeadmin (0.4.1) lib/active_admin/views/pages/base.rb:41:in `block (2 levels) in build_page'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:68:in `block in build_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:96:in `with_current_dom_context'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:67:in `build_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:77:in `insert_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/html/element.rb:17:in `div'
  activeadmin (0.4.1) lib/active_admin/views/pages/base.rb:38:in `block in build_page'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:96:in `with_current_dom_context'
  activeadmin (0.4.1) lib/active_admin/views/pages/base.rb:37:in `build_page'
  activeadmin (0.4.1) lib/active_admin/views/pages/base.rb:10:in `build'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:63:in `build_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:77:in `insert_tag'
  activeadmin (0.4.1) lib/active_admin/arbre/builder.rb:41:in `method_missing'
  activeadmin (0.4.1) lib/active_admin/view_helpers/renderer_helper.rb:21:in `render'
  activeadmin (0.4.1) app/views/active_admin/resource/index.html.arb:1:in `__home_eins____rbenv_versions_______p____lib_ruby_gems_______gems_activeadmin_______app_views_active_admin_resource_index_html_arb___523541447_100786690'
  actionpack (3.2.1) lib/action_view/template.rb:143:in `block in render'
  activesupport (3.2.1) lib/active_support/notifications.rb:125:in `instrument'
  actionpack (3.2.1) lib/action_view/template.rb:141:in `render'
  actionpack (3.2.1) lib/action_view/renderer/template_renderer.rb:41:in `block (2 levels) in render_template'
  actionpack (3.2.1) lib/action_view/renderer/abstract_renderer.rb:38:in `block in instrument'
  activesupport (3.2.1) lib/active_support/notifications.rb:123:in `block in instrument'
  activesupport (3.2.1) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (3.2.1) lib/active_support/notifications.rb:123:in `instrument'
  actionpack (3.2.1) lib/action_view/renderer/abstract_renderer.rb:38:in `instrument'
  actionpack (3.2.1) lib/action_view/renderer/template_renderer.rb:40:in `block in render_template'
  actionpack (3.2.1) lib/action_view/renderer/template_renderer.rb:48:in `render_with_layout'
  actionpack (3.2.1) lib/action_view/renderer/template_renderer.rb:39:in `render_template'
  actionpack (3.2.1) lib/action_view/renderer/template_renderer.rb:12:in `render'
  actionpack (3.2.1) lib/action_view/renderer/renderer.rb:36:in `render_template'
  actionpack (3.2.1) lib/action_view/renderer/renderer.rb:17:in `render'
  actionpack (3.2.1) lib/abstract_controller/rendering.rb:109:in `_render_template'
  actionpack (3.2.1) lib/action_controller/metal/streaming.rb:225:in `_render_template'
  actionpack (3.2.1) lib/abstract_controller/rendering.rb:103:in `render_to_body'
  actionpack (3.2.1) lib/action_controller/metal/renderers.rb:28:in `render_to_body'
  actionpack (3.2.1) lib/action_controller/metal/compatibility.rb:50:in `render_to_body'
  actionpack (3.2.1) lib/abstract_controller/rendering.rb:88:in `render'
  actionpack (3.2.1) lib/action_controller/metal/rendering.rb:16:in `render'
  actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render'
  activesupport (3.2.1) lib/active_support/core_ext/benchmark.rb:5:in `block in ms'
  /home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/1.9.1/benchmark.rb:310:in `realtime'
  activesupport (3.2.1) lib/active_support/core_ext/benchmark.rb:5:in `ms'
  actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:40:in `block in render'
  actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:83:in `cleanup_view_runtime'
  activerecord (3.2.1) lib/active_record/railties/controller_runtime.rb:24:in `cleanup_view_runtime'
  actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:39:in `render'
  activeadmin (0.4.1) lib/active_admin/resource_controller/actions.rb:13:in `block (2 levels) in index'
  actionpack (3.2.1) lib/action_controller/metal/responder.rb:229:in `call'
  actionpack (3.2.1) lib/action_controller/metal/responder.rb:229:in `default_render'
  actionpack (3.2.1) lib/action_controller/metal/responder.rb:160:in `to_html'
  responders (0.6.5) lib/responders/flash_responder.rb:93:in `to_html'
  actionpack (3.2.1) lib/action_controller/metal/responder.rb:153:in `respond'
  actionpack (3.2.1) lib/action_controller/metal/responder.rb:146:in `call'
  actionpack (3.2.1) lib/action_controller/metal/mime_responds.rb:238:in `respond_with'
  inherited_resources (1.3.0) lib/inherited_resources/actions.rb:7:in `index'
  activeadmin (0.4.1) lib/active_admin/resource_controller/actions.rb:11:in `index'
  actionpack (3.2.1) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
  actionpack (3.2.1) lib/abstract_controller/base.rb:167:in `process_action'
  actionpack (3.2.1) lib/action_controller/metal/rendering.rb:10:in `process_action'
  actionpack (3.2.1) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
  activesupport (3.2.1) lib/active_support/callbacks.rb:469:in `_run__639476650__process_action__1068992826__callbacks'
  activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `__run_callback'
  activesupport (3.2.1) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
  activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (3.2.1) lib/abstract_controller/callbacks.rb:17:in `process_action'
  actionpack (3.2.1) lib/action_controller/metal/rescue.rb:29:in `process_action'
  actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
  activesupport (3.2.1) lib/active_support/notifications.rb:123:in `block in instrument'
  activesupport (3.2.1) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (3.2.1) lib/active_support/notifications.rb:123:in `instrument'
  actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
  actionpack (3.2.1) lib/action_controller/metal/params_wrapper.rb:205:in `process_action'
  activerecord (3.2.1) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
  actionpack (3.2.1) lib/abstract_controller/base.rb:121:in `process'
  actionpack (3.2.1) lib/abstract_controller/rendering.rb:45:in `process'
  actionpack (3.2.1) lib/action_controller/metal.rb:203:in `dispatch'
  actionpack (3.2.1) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
  actionpack (3.2.1) lib/action_controller/metal.rb:246:in `block in action'
  actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:66:in `call'
  actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:66:in `dispatch'
  actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:30:in `call'
  journey (1.0.1) lib/journey/router.rb:68:in `block in call'
  journey (1.0.1) lib/journey/router.rb:56:in `each'
  journey (1.0.1) lib/journey/router.rb:56:in `call'
  actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:589:in `call'
  sass (3.1.15) lib/sass/plugin/rack.rb:54:in `call'
  warden (1.1.1) lib/warden/manager.rb:35:in `block in call'
  warden (1.1.1) lib/warden/manager.rb:34:in `catch'
  warden (1.1.1) lib/warden/manager.rb:34:in `call'
  actionpack (3.2.1) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
  rack (1.4.1) lib/rack/etag.rb:23:in `call'
  rack (1.4.1) lib/rack/conditionalget.rb:25:in `call'
  actionpack (3.2.1) lib/action_dispatch/middleware/head.rb:14:in `call'
  actionpack (3.2.1) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
  actionpack (3.2.1) lib/action_dispatch/middleware/flash.rb:242:in `call'
  rack (1.4.1) lib/rack/session/abstract/id.rb:205:in `context'
  rack (1.4.1) lib/rack/session/abstract/id.rb:200:in `call'
  actionpack (3.2.1) lib/action_dispatch/middleware/cookies.rb:338:in `call'
  activerecord (3.2.1) lib/active_record/query_cache.rb:64:in `call'
  activerecord (3.2.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:443:in `call'
  actionpack (3.2.1) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
  activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `_run__471556791__call__937320005__callbacks'
  activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `__run_callback'
  activesupport (3.2.1) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
  activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (3.2.1) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
  actionpack (3.2.1) lib/action_dispatch/middleware/reloader.rb:65:in `call'
  actionpack (3.2.1) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
  actionpack (3.2.1) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
  actionpack (3.2.1) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
  railties (3.2.1) lib/rails/rack/logger.rb:26:in `call_app'
  railties (3.2.1) lib/rails/rack/logger.rb:16:in `call'
  actionpack (3.2.1) lib/action_dispatch/middleware/request_id.rb:22:in `call'
  rack (1.4.1) lib/rack/methodoverride.rb:21:in `call'
  rack (1.4.1) lib/rack/runtime.rb:17:in `call'
  activesupport (3.2.1) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
  rack (1.4.1) lib/rack/lock.rb:15:in `call'
  actionpack (3.2.1) lib/action_dispatch/middleware/static.rb:53:in `call'
  railties (3.2.1) lib/rails/engine.rb:479:in `call'
  railties (3.2.1) lib/rails/application.rb:220:in `call'
  rack (1.4.1) lib/rack/content_length.rb:14:in `call'
  railties (3.2.1) lib/rails/rack/log_tailer.rb:14:in `call'
  rack (1.4.1) lib/rack/handler/webrick.rb:59:in `service'
  /home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
  /home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
  /home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'


  Rendered /home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/actionpack-3.2.1/lib/action_dispatch/middleware/templates/rescues/_trace.erb (5.1ms)
  Rendered /home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/actionpack-3.2.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (1.1ms)
  Rendered /home/eins11/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/actionpack-3.2.1/lib/action_dispatch/middleware/templates/rescues/template_error.erb within rescues/layout (9.8ms)

Und ich habe keine Ahnung, wo das Problem liegt ...

War es hilfreich?

Lösung

Ah, ich habe die Lösung gefunden. Ich weiß nicht genau, warum der Fehler aufgetreten ist, aber ich musste meinen application_controller ändern.

Im application_controller habe ich alle Projekte zu @projects abgerufen: 

before_filter :getActiveProjects

protected

  def getActiveProjects
    @projects = Project.isactive.find(:all, :order => 'LOWER(name) asc')
  end

Das hat ActiveAdmin verwirrt.Nachdem ich das in geändert habe 

before_filter :getActiveProjects

protected

  def getActiveProjects
    @projects_all = Project.isactive.find(:all, :order => 'LOWER(name) asc')
  end

und projects_controller Indexaktion auf 

def index
  @projects = @projects_all
end

alles hat gut funktioniert;)

Andere Tipps

Eine einfachere Lösung besteht darin, den Filter im jeweiligen aktiven Administrator-Controller zu überspringen: 

ActiveAdmin.register Project do  
    controller do
      skip_before_filter :getActiveProjects
    end
end

Der aktive Administrator verarbeitet die @resource-Variablen speziell.Wobei resource dem Klassennamen entspricht, der an die Registermethode übergeben wird.Also für Code: 

ActiveAdmin.register Project do  
end

Name der Variablen ist 

`@project`

Wir dürfen Variablen mit einem solchen Namen keinen Wert zuweisen.Solche Variablen können auch Gegenstand der ActiveRecord :: Relation-Klasse sein.Und wie @Oliver den Namen wie @projects_all schreibt, ist eine gute Wahl.Die Verwendung von skip_before_filter löst auch das Problem.

Eine listige Sache muss überprüft werden.Der Controller der Ressource verfügt möglicherweise nicht über Filter.Der Controller der Ressource ist möglicherweise überhaupt nicht vorhanden.Wie lautet der Filtername für skip_before_filter?Und wo sind solche Filter?Der Standard-Anwendungscontroller wird trotzdem verwendet.Der Filter kann am Hauptanwendungscontroller installiert werden.Die Fehlermeldung dieses Problems ist überhaupt nicht informativ.Überprüfen Sie daher auch den Anwendungscontroller auf installierte Filter.

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