undefined method `fullname' for #<User:0x357e380>, BUT works on first view?

Hi all,

Please excuse the long post, but I wanted to make sure you have all the information....

I have a NewsModel that looks like this:

class News < ActiveRecord::Base

  belongs_to :user

  validates_associated :user   validates_length_of :title, :description, :minimum => 5, :allow_nil => false

  acts_as_commentable   acts_as_taggable

  def self.find_recent     News.find(:all, :order => 'created_at', :limit => 10).reverse   end

end

and a controller like this: class NewsController < ApplicationController

  def show     begin       @news = News.find(params[:id])     rescue ActiveRecord::RecordNotFound       flash[:notice] = "News item not found!"       redirect_to :action => 'index' and return     else       @comments = @news.comments     end   end end

and finally the view: --Show <div id="news">         <%= render :partial => '/news/item', :locals => { :item => @news } %>

        <%= render :partial => '/comments/comment', :collection => @comments %>

        <%= render :partial => '/comments/form' %> </div>

--/comments/comment <div class="comment">         <h2>Comments</h2>         <div class="comment_title">                 <%= comment.title -%>         </div>         <div class="comment.text">                 <%= h comment.comment -%>         </div>         <div class="comment_author">                 <%= comment.user.fullname -%> <%= time_ago_in_words(comment.created_at) -%> ago         </div>         <hr> </div>

As you can see, the comments partial calls comment.user.fullname, which

is defined in the UserModel: class User < ActiveRecord::Base

  has_many :documents   has_many :events   has_many :news   has_many :comments

  def fullname     "#{firstname} #{surname}"   end

end

When the server is first started the page renders correctly, HOWEVER if

I hit refresh it fails with: undefined method `fullname' for #<User:0x357e380>

Extracted source (around line #10):

7: <%= h comment.comment -%> 8: </div> 9: <div class="comment_author"> 10: <%= comment.user.fullname -%> <%= time_ago_in_words(comment.created_at) -%> ago 11: </div> 12: <hr> 13: </div>

Restarting the server fixes the issue for 1 view, then all subsequent views fail. Here is the console log:

Andrews-MacBook:~/Sites/tassia andrewskegg$ ./script/server => Booting Mongrel (use 'script/server webrick' to force WEBrick) => Rails application starting on http://0.0.0.0:3000 => Call with -d to detach => Ctrl-C to shutdown server ** Starting Mongrel listening at 0.0.0.0:3000 ** Starting Rails with development environment... ** Rails loaded. ** Loading any Rails specific GemPlugins ** Signals ready. TERM => stop. USR2 => restart. INT => stop (no restart). ** Rails signals registered. HUP => reload (without restart). It might not work well. ** Mongrel available at 0.0.0.0:3000 ** Use CTRL-C to stop.

Processing NewsController#show (for 127.0.0.1 at 2006-12-20 10:49:28) [GET]   Session ID: ea9a336b5b4d1bee4d647d25de2a27e7   Parameters: {"action"=>"show", "id"=>"13", "controller"=>"news"}   News Columns (0.000266) SHOW FIELDS FROM news   News Load (0.000302) SELECT * FROM news WHERE (news.id = 13) Rendering within layouts/application Rendering news/show   Tagging Columns (0.000286) SHOW FIELDS FROM taggings   Tag Load (0.000444) SELECT tags.* FROM tags INNER JOIN taggings ON tags.id = taggings.tag_id WHERE ((taggings.taggable_type = 'News') AND (taggings.taggable_id = 13))   Tag Columns (0.000187) SHOW FIELDS FROM tags Rendered /news/_item (0.00561)   Comment Load (0.000301) SELECT * FROM comments WHERE (comments.commentable_id = 13 AND comments.commentable_type = 'News')   Comment Columns (0.000248) SHOW FIELDS FROM comments   User Columns (0.000345) SHOW FIELDS FROM users   User Load (0.000359) SELECT * FROM users WHERE (users.id = 1) Rendered /comments/_comment (0.01381) Rendered /comments/_form (0.00201) Completed in 0.04776 (20 reqs/sec) | Rendering: 0.02942 (61%) | DB: 0.00274 (5%) | 200 OK [http://localhost/news/show/13\]

Processing NewsController#show (for 127.0.0.1 at 2006-12-20 10:49:32) [GET]   Session ID: ea9a336b5b4d1bee4d647d25de2a27e7   Parameters: {"action"=>"show", "id"=>"13", "controller"=>"news"}   News Columns (0.000273) SHOW FIELDS FROM news   News Load (0.000314) SELECT * FROM news WHERE (news.id = 13) Rendering within layouts/application Rendering news/show   Tag Load (0.000489) SELECT tags.* FROM tags INNER JOIN taggings ON tags.id = taggings.tag_id WHERE ((taggings.taggable_type = 'News') AND (taggings.taggable_id = 13)) Rendered /news/_item (0.00340)   Comment Load (0.000447) SELECT * FROM comments WHERE (comments.commentable_id = 13 AND comments.commentable_type = 'News')   User Columns (0.000271) SHOW FIELDS FROM users   User Load (0.000356) SELECT * FROM users WHERE (users.id = 1)

ActionView::TemplateError (undefined method `fullname' for #<User:0x357e380>) on line #10 of app/views/comments/_comment.rhtml: 7: <%= h comment.comment -%> 8: </div> 9: <div class="comment_author"> 10: <%= comment.user.fullname -%> <%= time_ago_in_words(comment.created_at) -%> ago 11: </div> 12: <hr> 13: </div>

/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4.5618/lib/active_recor d/base.rb:1848:in `method_missing'

/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4.5618/lib/active_recor d/associations/association_proxy.rb:123:in `send'

/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4.5618/lib/active_recor d/associations/association_proxy.rb:123:in `method_missing'     #{RAILS_ROOT}/app/views//comments/_comment.rhtml:10:in `_run_rhtml_47app47views47comments47_comment46rhtml'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/ba se.rb:326:in `send'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/ba se.rb:326:in `compile_and_render_template'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/ba se.rb:301:in `render_template'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/ba se.rb:260:in `render_file'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/ba se.rb:275:in `render'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/pa rtials.rb:59:in `render_partial'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/benchmarking.rb:26:in `benchmark'     /usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure'     /usr/local/lib/ruby/1.8/benchmark.rb:307:in `realtime'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/benchmarking.rb:26:in `benchmark'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/pa rtials.rb:58:in `render_partial'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/pa rtials.rb:73:in `render_partial_collection'

/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4.5618/lib/active_recor d/base.rb:1361:in `each_with_index'

/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4.5618/lib/active_recor d/associations/association_proxy.rb:123:in `each'

/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4.5618/lib/active_recor d/associations/association_proxy.rb:123:in `each_with_index'

/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4.5618/lib/active_recor d/associations/association_proxy.rb:123:in `send'

/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4.5618/lib/active_recor d/associations/association_proxy.rb:123:in `method_missing'

/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4.5618/lib/active_recor d/associations/has_many_association.rb:98:in `method_missing'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/pa rtials.rb:71:in `render_partial_collection'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/ba se.rb:285:in `render'     #{RAILS_ROOT}/app/views/news/show.rhtml:4:in `_run_rhtml_47app47views47news47show46rhtml'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/ba se.rb:326:in `send'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/ba se.rb:326:in `compile_and_render_template'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/ba se.rb:301:in `render_template'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_view/ba se.rb:260:in `render_file'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/base.rb:786:in `render_file'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/base.rb:694:in `render_with_no_layout'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/layout.rb:247:in `render_without_benchmark'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/benchmarking.rb:50:in `render'     /usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/benchmarking.rb:50:in `render'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/base.rb:1069:in `perform_action_without_filters'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/filters.rb:635:in `call_filter'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/filters.rb:622:in `perform_action_without_benchmark'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/benchmarking.rb:66:in `perform_action_without_rescue'     /usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/benchmarking.rb:66:in `perform_action_without_rescue'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/rescue.rb:81:in `perform_action'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/base.rb:427:in `send'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/base.rb:427:in `process_without_filters'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/filters.rb:627:in `process_without_session_management_support'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/session_management.rb:114:in `process'

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/base.rb:330:in `process'

/usr/local/lib/ruby/gems/1.8/gems/rails-1.1.6.5618/lib/dispatcher.rb:41:in

`dispatch'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/rails.rb:84: in `process'     /usr/local/lib/ruby/1.8/sync.rb:229:in `synchronize'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/rails.rb:83: in `process'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:580:in

`process_client'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:579:in

`each'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:579:in

`process_client'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in

`run'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in

`initialize'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in

`new'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in

`run'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in

`initialize'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in

`new'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in

`run'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator .rb:267:in `run'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator .rb:266:in `each'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator .rb:266:in `run'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:127:in

`run'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/command.rb:2 11:in `run'

/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:231

/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1.5618/lib/active_suppo rt/dependencies.rb:482:in `load'

/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1.5618/lib/active_suppo rt/dependencies.rb:482:in `load'

/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1.5618/lib/active_suppo rt/dependencies.rb:337:in `new_constants_in'

/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1.5618/lib/active_suppo rt/dependencies.rb:482:in `load'

/usr/local/lib/ruby/gems/1.8/gems/rails-1.1.6.5618/lib/commands/servers/mon grel.rb:52     /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'     /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'

/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1.5618/lib/active_suppo rt/dependencies.rb:489:in `require'

/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1.5618/lib/active_suppo rt/dependencies.rb:337:in `new_constants_in'

/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1.5618/lib/active_suppo rt/dependencies.rb:489:in `require'

/usr/local/lib/ruby/gems/1.8/gems/rails-1.1.6.5618/lib/commands/server.rb:3 9     /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'     /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'

/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1.5618/lib/active_suppo rt/dependencies.rb:489:in `require'

/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1.5618/lib/active_suppo rt/dependencies.rb:337:in `new_constants_in'

/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1.5618/lib/active_suppo rt/dependencies.rb:489:in `require'     script/server:3

Rendering /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5.5618/lib/action_control ler/templates/rescues/layout.rhtml (500 Internal Error)

Any ideas?

Thanks for the reply.

I have had a play around with the filenames and thought I was onto something, but the computer says no. The file is app/models/user.rb and contains: class User < ActiveRecord::Base

  has_many :documents   has_many :events   has_many :news   has_many :comments

  def fullname     "#{firstname} #{surname}"   end

end

I am using Rails 1.2 RC1 (ie 1.1.6) in development mode on my mac.

Interestingly, I am getting what looks like the results of "rake db:test" whenever I run a rake command, including "./scripts/about". I wonder if this is related?