0

新しいGroupLinkを作成しようとすると、このエラーが発生します

コントローラーコード：

def new
  @group_links=GroupLink.new
  respond_to do |format|
  format.html { render(:template=> 'group_links/new_link_details', :layout =>      
  '/layouts/sponsored_group_manage_sub_menu') }
  end
end

 def create
   @group_link=GroupLink.new(params[:group_link])
   @group_link.group_id=params[:group_id]
    if @group_link.save
    flash[:notice] = "A new booth link was created!"
     else
    flash[:errors] = @group_link.errors
   end
   redirect_to group_group_links_path(@group)
  end

モデルの関係は1対多の関連です。

 class GroupLink < ActiveRecord::Base
    belongs_to :group
    validates_presence_of :url
    validates_presence_of :text

 def link
   self.url
 end

 def text
  self.text
 end
end

 class Group < ActiveRecord::Base
    has_many :group_links, :dependent => :destroy
 end

ルートファイルには次のものがあります。

resources :groups do
 member do
  get :get_group_links
 end

 resources :group_links
 ...
end

ビューファイルは次のとおりです。

  <% content_for(:page_title, "Create a New Booth Link") -%>
  <% form_for(:group_link,:url => group_group_links_path, :html => {:id => 
    "new_group_link", :method => :post}) do |f| %>
  <fieldset>
 <h6>New Booth Link</h6>
  <label for="group_link_url">URL</label><br />
  <%= f.text_field :url, :size => 32, :placeholder => "URL for the booth link" %><br    
      /><br />
  <label for="group_link_text">Text</label><br />
  <%= f.text_field :text, :size => 32, :placeholder => "The text for this booth 
     link" %><br/><br />
     <div class="buttons">
 <%= f.submit "Create Booth Link", :class => "button large" %>
    </div>
    </fieldset>
 <% end %>

この問題は、モデルをgroup_linkではなくgroup_linksとして誤って作成したときに始まりました。そのため、移行をロールバックしてモデルを破棄し、正しい名前で再作成しました。この変更を行った後、このエラーがスローされ始めました（group_linksモデルを使用して新しいグループリンクを正しく作成していましたが、予想どおり、ルートはhaywireを使用していたため、変更することにしました）

助けてください、私は問題が何であるかを理解することができません....

以下は完全なスタックトレースです。

app/models/group_link.rb:12:in `text'
app/models/group_link.rb:12:in `text' activemodel (3.0.20) lib/active_model/errors.rb:224:in `read_attribute_for_validation'

activemodel（3.0.20）lib / active_model / errors.rb：224：in send' activemodel (3.0.20) lib/active_model/errors.rb:224:inadd_on_blank'activemodel（3.0.20）lib / active_model / errors.rb：223：in each' activemodel (3.0.20) lib/active_model/errors.rb:223:inadd_on_blank' activemodel（3.0.20）lib / active_model / validations / present.rb ：9：in validate' activesupport (3.0.20) lib/active_support/callbacks.rb:315:insend'activesupport（3.0.20）lib / active_support / callbacks.rb：315：in _callback_before_7973' activesupport (3.0.20) lib/active_support/callbacks.rb:420:in _run_validate_callbacks' activemodel（3.0.20）lib / active_model / validations.rb：212：in run_validations!' activemodel (3.0.20) lib/active_model/validations/callbacks.rb:67:in run_validations！ ' activesupport（3.0.20）lib / active_support / callbacks.rb：419：in _run_validation_callbacks' activemodel (3.0.20) lib/active_model/validations/callbacks.rb:67:in run_validations！ ' activemodel（3.0.20）lib / active_model / validations.rb：179：valid?' activerecord (3.0.20) lib/active_record/validations.rb:55:in有効ですか？ ' activerecord（3.0.20）lib / active_record / validations.rb：75：in perform_validations' activerecord (3.0.20) lib/active_record/validations.rb:43:insave'activerecord（3.0.20）lib / active_record / attribute_methods / dirty.rb：21：insave' activerecord (3.0.20) lib/active_record/transactions.rb:240:in保存'activerecord（3.0.20）lib / active_record /transactions.rb：292： with_transaction_returning_status' activerecord (3.0.20) lib/active_record/connection_adapters/abstract/database_statements.rb:139:in トランザクション内' activerecord（3.0.20）lib / active_record / transactions.rb：207： transaction_without_trace_ActiveRecord_self_name_transaction' newrelic_rpm (3.3.4.1) lib/new_relic/agent/method_tracer.rb:491:in トランザクション内'newrelic_rpm（3.3.4.1）lib / new_relic / agent / method_tracer.rb：242：in trace_execution_scoped' newrelic_rpm (3.3.4.1) lib/new_relic/agent/method_tracer.rb:486:in transaction'activerecord（3.0.20）lib / active_record / transactions.rb：290：in save with_transaction_returning_status' activerecord (3.0.20) lib/active_record/transactions.rb:240:in' activerecord（3.0.20）lib / active_record / transaction.rb：251：in save'app rollback_active_record_state!' activerecord (3.0.20) lib/active_record/transactions.rb:239:in/controllers/group_links_controller.rb:23:in create' actionpack (3.0.20) lib/action_controller/metal/implicit_render.rb:4:in send_action'actionpack（3.0.20）lib / action_controller / metal / implicit_render.rb：4：in send_action' actionpack (3.0.20) lib/abstract_controller/base.rb:150:in process_action' actionpack（3.0.20）lib / action_controller / metal / rendering.rb：11 ：in process_action' actionpack (3.0.20) lib/abstract_controller/callbacks.rb:18:in process_action'activesupport（3.0.20）lib / active_support / callbacks.rb：511：in _run__584584438__process_action__43712543__callbacks' activesupport (3.0.20) lib/active_support/callbacks.rb:410:insend'activesupport（3.0.20）lib / active_support / callbacks.rb：410：in _run_process_action_callbacks' activesupport (3.0.20) lib/active_support/callbacks.rb:94:insend' activesupport（3.0.20）lib / active_support / callbacks.rb：94：in run_callbacks' actionpack (3.0.20) lib/abstract_controller/callbacks.rb:17:inprocess_action'actionpack（3.0.20）lib / action_controller / metal / rescue.rb：17：in process_action' actionpack (3.0.20) lib/action_controller/metal/instrumentation.rb:30:inprocess_action'activesupport（3.0.20）lib / active_support / notifys.rb：52：in instrument' activesupport (3.0.20) lib/active_support/notifications/instrumenter.rb:21:inInstrument' activesupport（3.0.20）lib / active_support / notification.rb：52：in instrument' actionpack (3.0.20) lib/action_controller/metal/instrumentation.rb:29:inprocess_action'newrelic_rpm （3.3.4.1）lib / new_relic / agent / Instruments / rails3 / action_controller.rb：34：in process_action' newrelic_rpm (3.3.4.1) lib/new_relic/agent/instrumentation/controller_instrumentation.rb:255:in Perform_action_with_newrelic_trace'newrelic_rpm（3.3.4.1）lib / new_relic / agent / method_tracer.rb：242：in trace_execution_scoped' newrelic_rpm (3.3.4.1) lib/new_relic/agent/instrumentation/controller_instrumentation.rb:250:in Perform_action_with_newrelic_trace' newrelic_rpm（3.3.4.1） ）lib / new_relic / agent / Instruments / rails3 / action_controller.rb：33： のprocess_action' actionpack (3.0.20) lib/abstract_controller/base.rb:119:inプロセス'actionpack（3.0.20）lib / abstract_controller / rendering.rb：41：in process' actionpack (3.0.20) lib/action_controller/metal.rb:138:indispatch' actionpack（3.0.20）lib / action_controller / metal / Rack_delegation.rb：14：in dispatch' actionpack (3.0.20) lib/action_controller/metal.rb:178:in action'actionpack（3.0.20）lib / action_dispatch / routing / route_set.rb：68：in call' actionpack (3.0.20) lib/action_dispatch/routing/route_set.rb:68:indispatch'actionpack（3.0.20）lib / action_dispatch / routing / route_set.rb：33：in call' rack-mount (0.6.14) lib/rack/mount/route_set.rb:148:incall' Rack-mount（0.6.14）lib / Rack / mount/code_generation。 rb：93： recognize' rack-mount (0.6.14) lib/rack/mount/code_generation.rb:131:ininoptimized_each'rack-mount（0.6.14）lib / Rack / mount / code_generation.rb：92：in recognize' rack-mount (0.6.14) lib/rack/mount/route_set.rb:139:incall' actionpack（3.0.20）lib / action_dispatch / routing / route_set.rb：499：in call' newrelic_rpm (3.3.4.1) lib/new_relic/rack/browser_monitoring.rb:23:incall 'newrelic_rpm（3.3.4.1）lib / new_relic / Rack /developer_mode.rb：24：in call' warden（1.0.6）lib / warden / call' sass (3.2.5) lib/sass/./sass/plugin/rack.rb:54:inmanager.rb：35：in catch'warden（ call' warden (1.0.6) lib/warden/manager.rb:34:in1.0.6）lib / warden /マネジャー。rb：34：incall' actionpack (3.0.20) lib/action_dispatch/middleware/best_standards_support.rb:17:incall'actionpack（3.0.20）lib / action_dispatch / middleware / head.rb：14：in call' rack (1.2.7) lib/rack/methodoverride.rb:24:incall' actionpack（3.0.20）lib / action_dispatch / middleware / params_parser.rb：21：in call' actionpack (3.0.20) lib/action_dispatch/middleware/flash.rb:182:in call'actionpack（3.0.20） lib / action_dispatch / middleware / session / abstract_store.rb：149：in call' actionpack (3.0.20) lib/action_dispatch/middleware/cookies.rb:302:in call'activerecord（3.0.20）lib / active_record / query_cache.rb：32：in call' activerecord (3.0.20) lib/active_record/connection_adapters/abstract/query_cache.rb:28:in cache' activerecord（3.0.20）lib / active_record / query_cache.rb： 12：in cache' activerecord (3.0.20) lib/active_record/query_cache.rb:31:in call'activerecord（3.0.20）lib / active_record / connection_adapters / abstract / connection_pool.rb：354：in call' actionpack (3.0.20) lib/action_dispatch/middleware/callbacks.rb:46:incall' activesupport（3.0.20）lib / active_support / callbacks.rb：416：in call'rack _run_call_callbacks' actionpack (3.0.20) lib/action_dispatch/middleware/callbacks.rb:44:in （1.2 .7）lib / Rack / sendfile.rb：106：in call' actionpack (3.0.20) lib/action_dispatch/middleware/remote_ip.rb:48:incall'actionpack（3.0.20）lib / action_dispatch / middleware / show_exceptions.rb：47：incall' railties (3.0.20) lib/rails/rack/logger.rb:13:incall'rack（1.2.7）lib / Rack / runtime.rb：17：in call' activesupport (3.0.20) lib/active_support/cache/strategy/local_cache.rb:72:incall' Rack（1.2.7）lib / Rack / lock.rb：13：in call' rack (1.2.7) lib/rack/lock.rb:13:insynchronize'rack（1.2.7）lib / Rack / lock.rb：13：in call' actionpack (3.0.20) lib/action_dispatch/middleware/static.rb:30:incall'railties（3.0.20）lib / rails / application.rb：168：in call' railties (3.0.20) lib/rails/application.rb:77:insend' railties（3.0.20）lib / rails / application.rb：77：in call'rack method_missing' railties (3.0.20) lib/rails/rack/log_tailer.rb:14:in（1.2 .7）lib / Rack / content_length.rb：13：in call' rack (1.2.7) lib/rack/handler/webrick.rb:52:inservice'/home/vasu/.rvm /rubies/ruby-1.8.7-p371/lib/ruby/1.8/webrick/httpserver.rb:104:in service' /home/vasu/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/1.8/webrick/httpserver.rb:65:in run ' start_thread' /home/vasu/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/1.8/webrick/server.rb:162:in /home/vasu/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/1.8/webrick/server.rb:173:instart'/home/vasu/.rvm/rubies/ruby-1.8。 7-p371 / lib / ruby​​ / 1.8 / webrick / server.rb：162：in start_thread' /home/vasu/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/1.8/webrick/server.rb:95:in start' /home/vasu/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/1.8/webrick/server.rb ：92：in each' /home/vasu/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/1.8/webrick/server.rb:92:in start' /home/vasu/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/1.8/webrick/server.rb:23:in start' /home/vasu/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/1.8/webrick/server.rb:82:in start'ラック（1.2.7）lib / Rack / handler / webrick .rb：13：in run' rack (1.2.7) lib/rack/server.rb:217:instart'railties（3.0.20）lib / rails / Commands / server.rb：65：in start' railties (3.0.20) lib/rails/commands.rb:30 railties (3.0.20) lib/rails/commands.rb:27:in tap' railties（3.0.20）lib / rails / Commands.rb：27 script / rails：6： `require'スクリプト/rails：6

4

1 に答える 1

2

私が見る問題は、の方法ですGroupLink

 def text
  self.text
 end

text自分自身を呼び出すだけのメソッドを定義しています。このメソッドを削除してみてください。

于 2013-03-20T14:06:35.633 に答える