删除错误的模型文件后出错

时间：2013-03-20 14:01:43

标签： ruby-on-rails ruby-on-rails-3

当我尝试创建新的GroupLink

时，我收到此错误

控制器代码：

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

模型关系是一对多关联：

 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

routes文件包含以下内容：

resources :groups do
 member do
  get :get_group_links
 end

 resources :group_links
 ...
end

视图文件如下：

  <% 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 %>

当我错误地将模型创建为group_links而不是group_link时，问题就开始了。我回滚了迁移并销毁模型并使用正确的名称重新创建它。在我做了这个改变后，它开始抛出这个错误（它正在创建与group_links模型正确的新组链接，但正如预期的那样路由wnet haywire所以我决定改变它）

请帮助，我无法弄清楚问题是什么......

以下是完整的堆栈跟踪：

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：在send' activemodel (3.0.20) lib/active_model/errors.rb:224:in add_on_blank＆＃39;   activemodel（3.0.20）lib / active_model / errors.rb:223：在each' activemodel (3.0.20) lib/active_model/errors.rb:223:in add_on_blank＆＃39;   activemodel（3.0.20）lib / active_model / validations / presence.rb:9:in   validate' activesupport (3.0.20) lib/active_support/callbacks.rb:315:in发送＆＃39; activesupport（3.0.20）   lib / active_support / callbacks.rb：315：在_callback_before_7973' activesupport (3.0.20) lib/active_support/callbacks.rb:420:in _ run_validate_callbacks＆＃39; activemodel（3.0.20）   lib / active_model / validations.rb：212：run_validations!' activemodel (3.0.20) lib/active_model/validations/callbacks.rb:67:in run_validations！＆＃39; activesupport（3.0.20）   lib / active_support / callbacks.rb：419：在_run_validation_callbacks' activemodel (3.0.20) lib/active_model/validations/callbacks.rb:67:in run_validations！＆＃39; activemodel（3.0.20）   lib / active_model / validations.rb:179：valid?' activerecord (3.0.20) lib/active_record/validations.rb:55:in有效吗？＆＃39; activerecord（3.0.20）   lib / active_record / validations.rb:75:in perform_validations' activerecord (3.0.20) lib/active_record/validations.rb:43:in save＆＃39;   activerecord（3.0.20）   lib / active_record / attribute_methods / dirty.rb:21:in save' activerecord (3.0.20) lib/active_record/transactions.rb:240:in save＆＃39; ActiveRecord的   （3.0.20）lib / active_record / transactions.rb：292：in   with_transaction_returning_status' activerecord (3.0.20) lib/active_record/connection_adapters/abstract/database_statements.rb:139:in 交易＆＃39; activerecord（3.0.20）   LIB / active_record / transactions.rb：207：在   transaction_without_trace_ActiveRecord_self_name_transaction' newrelic_rpm (3.3.4.1) lib/new_relic/agent/method_tracer.rb:491:in 交易＆＃39; newrelic_rpm（3.3.4.1）   lib / new_relic / agent / method_tracer.rb：242：在trace_execution_scoped' newrelic_rpm (3.3.4.1) lib/new_relic/agent/method_tracer.rb:486:in 事务中＆＃39; activerecord（3.0.20）   LIB / active_record / transactions.rb：290：在   with_transaction_returning_status' activerecord (3.0.20) lib/active_record/transactions.rb:240:in保存＆＃39; activerecord（3.0.20）   LIB / active_record / transactions.rb：251：在   rollback_active_record_state!' activerecord (3.0.20) lib/active_record/transactions.rb:239:in保存＆＃39;   app / controllers / group_links_controller.rb：23：在create' actionpack (3.0.20) lib/action_controller/metal/implicit_render.rb:4:in send_action＆＃39; actionpack（3.0.20）   lib / action_controller / metal / implicit_render.rb：4：在send_action' actionpack (3.0.20) lib/abstract_controller/base.rb:150:in process_action＆＃39; actionpack（3.0.20）   lib / action_controller / metal / rendering.rb：11：在process_action' actionpack (3.0.20) lib/abstract_controller/callbacks.rb:18:in process_action＆＃39; activesupport（3.0.20）   LIB / active_support / callbacks.rb：511：在   _run__584584438__process_action__43712543__callbacks' activesupport (3.0.20) lib/active_support/callbacks.rb:410:in发送＆＃39;的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:in发送＆＃39; activesupport（3.0.20）   lib / active_support / callbacks.rb：94：在run_callbacks' actionpack (3.0.20) lib/abstract_controller/callbacks.rb:17:in process_action＆＃39;   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:in process_action＆＃39;   activesupport（3.0.20）lib / active_support / notifications.rb:52:in   instrument' activesupport (3.0.20) lib/active_support/notifications/instrumenter.rb:21:in仪器＆＃39;   activesupport（3.0.20）lib / active_support / notifications.rb:52:in   instrument' actionpack (3.0.20) lib/action_controller/metal/instrumentation.rb:29:in process_action＆＃39;   newrelic_rpm（3.3.4.1）   LIB / new_relic /剂/仪表/ Rails3中/ action_controller.rb：34：在   process_action' newrelic_rpm (3.3.4.1) lib/new_relic/agent/instrumentation/controller_instrumentation.rb:255:in perform_action_with_newrelic_trace＆＃39; newrelic_rpm（3.3.4.1）   lib / new_relic / agent / method_tracer.rb：242：在trace_execution_scoped' newrelic_rpm (3.3.4.1) lib/new_relic/agent/instrumentation/controller_instrumentation.rb:250:in perform_action_with_newrelic_trace＆＃39; newrelic_rpm（3.3.4.1）   LIB / new_relic /剂/仪表/ Rails3中/ action_controller.rb：33：在   process_action' actionpack (3.0.20) lib/abstract_controller/base.rb:119:in过程＆＃39; actionpack（3.0.20）   lib / abstract_controller / rendering.rb：41：在process' actionpack (3.0.20) lib/action_controller/metal.rb:138:in发送＆＃39; ActionPack的   （3.0.20）lib / action_controller / metal / rack_delegation.rb:14:in   dispatch' actionpack (3.0.20) lib/action_controller/metal.rb:178:in 动作＆＃39; actionpack（3.0.20）   lib / action_dispatch / routing / route_set.rb：68：在call' actionpack (3.0.20) lib/action_dispatch/routing/route_set.rb:68:in发送＆＃39;   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:in呼叫＆＃39;   rack-mount（0.6.14）lib / rack / mount / code_generation.rb:93:in   recognize' rack-mount (0.6.14) lib/rack/mount/code_generation.rb:131:in optimized_each＆＃39;机架式   （0.6.14）lib / rack / mount / code_generation.rb:92:in recognize' rack-mount (0.6.14) lib/rack/mount/route_set.rb:139:in call＆＃39;   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:in呼叫＆＃39; newrelic_rpm   （3.3.4.1）lib / new_relic / rack / developer_mode.rb:24:in call' sass (3.2.5) lib/sass/./sass/plugin/rack.rb:54:in call＆＃39;监狱长（1.0.6）   lib / warden / manager.rb:35:in call' warden (1.0.6) lib/warden/manager.rb:34:in catch＆＃39;监狱长（1.0.6）   lib / warden / manager.rb:34:in call' actionpack (3.0.20) lib/action_dispatch/middleware/best_standards_support.rb:17:in来电＆＃39;   actionpack（3.0.20）lib / action_dispatch / middleware / head.rb:14:in   call' rack (1.2.7) lib/rack/methodoverride.rb:24:in呼叫＆＃39; ActionPack的   （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 来电＆＃39; actionpack（3.0.20）   lib / action_dispatch / middleware / session / abstract_store.rb：149：call' actionpack (3.0.20) lib/action_dispatch/middleware/cookies.rb:302:in 来电＆＃39; 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 缓存＆＃39; 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 呼叫＆＃39; activerecord（3.0.20）   LIB / active_record / connection_adapters /抽象/ connection_pool.rb：354：在   call' actionpack (3.0.20) lib/action_dispatch/middleware/callbacks.rb:46:in呼叫＆＃39;的ActiveSupport   （3.0.20）lib / active_support / callbacks.rb：416：_run_call_callbacks' actionpack (3.0.20) lib/action_dispatch/middleware/callbacks.rb:44:in 来电＆＃39; rack（1.2.7）lib / rack / sendfile.rb:106：在call' actionpack (3.0.20) lib/action_dispatch/middleware/remote_ip.rb:48:in电话＆＃39;   actionpack（3.0.20）   lib / action_dispatch / middleware / show_exceptions.rb:47:in call' railties (3.0.20) lib/rails/rack/logger.rb:13:in来电＆＃39;机架（1.2.7）   lib / rack / runtime.rb:17:in call' activesupport (3.0.20) lib/active_support/cache/strategy/local_cache.rb:72:in call＆＃39;架   （1.2.7）lib / rack / lock.rb:13:in call' rack (1.2.7) lib/rack/lock.rb:13:in同步＆＃39;机架（1.2.7）   lib / rack / lock.rb:13:in call' actionpack (3.0.20) lib/action_dispatch/middleware/static.rb:30:in来电＆＃39; railties   （3.0.20）lib / rails / application.rb：168：在call' railties (3.0.20) lib/rails/application.rb:77:in发送＆＃39;铁路（3.0.20）   lib / rails / application.rb：77：在method_missing' railties (3.0.20) lib/rails/rack/log_tailer.rb:14:in电话＆＃39;机架（1.2.7）   lib / rack / content_length.rb:13:in call' rack (1.2.7) lib/rack/handler/webrick.rb:52:in service＆＃39;   /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 运行＆＃39;   /home/vasu/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/1.8/webrick/server.rb:173:in   start_thread' /home/vasu/.rvm/rubies/ruby-1.8.7-p371/lib/ruby/1.8/webrick/server.rb:162:in 开始＆＃39;   /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 开始＆＃39;   /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 开始＆＃39;   /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 开始＆＃39; rack（1.2.7）lib / rack / handler / webrick.rb:13:in run' rack (1.2.7) lib/rack/server.rb:217:in start＆＃39;铁路（3.0.20）   lib / rails / commands / server.rb：65：在start' railties (3.0.20) lib/rails/commands.rb:30 railties (3.0.20) lib/rails/commands.rb:27:in 点击＆＃39; railties（3.0.20）lib / rails / commands.rb:27 script / rails：6：in   `需要＆＃39;脚本/轨道：6

1 个答案:

答案 0 :(得分：2)

我看到的问题是GroupLink

中的方法 
 def text
  self.text
 end

您正在定义仅调用自身的方法text。尝试删除此方法。

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