From: Fei Liu <feiliu@...>
Date: 2007-03-16T04:05:06+09:00
Subject: Re: question about mod_ruby, eruby and ajax

Jan Svitok wrote:

> 
> start with:
> 
> <% require 'rubygems' %>
> <% gem 'actionpack' %>
> <% gem 'activesupport' %>
> <% require 'active_support' %>
> <% require 'action_view' %>
> <%= javascript_include_tag `prototype' %>
> 
>> <%= form_remote_tag :url => { :action => 'whet' } %>
>> Enter your name: <%= text_field_tag :name %>
>> <%= submit_tag "Greet Me" %>
>> <%= end_form_tag %>
>> <h2 id="greeting" style="display: none"></h2>
>>
>> ls /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/
>> active_record_helper.rb  date_helper.rb          form_tag_helper.rb
>>         pagination_helper.rb     url_helper.rb
>> asset_tag_helper.rb      debug_helper.rb         javascript_helper.rb
>>         prototype_helper.rb
>> benchmark_helper.rb      deprecated_helper.rb
>> java_script_macros_helper.rb  scriptaculous_helper.rb
>> cache_helper.rb          form_helper.rb          javascripts
>>         tag_helper.rb
>> capture_helper.rb        form_options_helper.rb  number_helper.rb
>>         text_helper.rb
>>
>> I've tried both with '.rb' and without '.rb', neither one works...
>>
>> Fei
> 
> Now you'd need some more gems possibly (i neede redcloth, bluecloth, etc.)
> It should be possible to selectively include only the needed libs. Now
> I don't have time to find out. Try yourself.
> 
> Jano
> 

Ok I worked around this problem by creating a rail project and looking 
at the pique.rhtml in rails server. Now I am getting a different set of 
error:


  TypeError in Pique#whet

Showing app/views/pique/whet.rjs where line #1 raised:

ActionView::Helpers::JavaScriptElementProxy#to_str should return String

Extracted source (around line #1):

1: page[:greeting].hide page[:greeting].update "Greetings, " + 
params[:name]
2: page[:greeting].visual_effect :grow
3: page.select("form").first.reset

RAILS_ROOT: script/../config/..
Application Trace | Framework Trace | Full Trace

/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:607:in 
`join'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:607:in 
`arguments_for_call'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:708:in 
`send'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:708:in 
`call'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:703:in 
`method_missing'
#{RAILS_ROOT}/app/views/pique/whet.rjs:1:in `__bind_1173984771_406507'
#{RAILS_ROOT}/app/views/pique/whet.rjs:0:in 
`_run_rjs_47app47views47pique47whet46rjs'

/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:607:in 
`join'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:607:in 
`arguments_for_call'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:708:in 
`send'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:708:in 
`call'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:703:in 
`method_missing'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/core_ext/object/extending.rb:44:in 
`[]'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/core_ext/object/extending.rb:44:in 
`instance_exec'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:313:in 
`initialize'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:625:in 
`new'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:625:in 
`update_page'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:326:in 
`send'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:326:in 
`compile_and_render_template'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:301:in 
`render_template'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:260:in 
`render_file'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:806:in 
`render_file'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:711:in 
`render_with_no_layout'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/layout.rb:256:in 
`render_without_benchmark'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:50:in 
`render'
/usr/lib/ruby/1.8/benchmark.rb:293:in `measure'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:50:in 
`render'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:1101:in 
`perform_action_without_filters'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:632:in 
`call_filter'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:619:in 
`perform_action_without_benchmark'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:66:in 
`perform_action_without_rescue'
/usr/lib/ruby/1.8/benchmark.rb:293:in `measure'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:66:in 
`perform_action_without_rescue'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/rescue.rb:83:in 
`perform_action'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:430:in 
`send'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:430:in 
`process_without_filters'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:624:in 
`process_without_session_management_support'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/session_management.rb:114:in 
`process'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:330:in 
`process'
/usr/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/dispatcher.rb:41:in `dispatch'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:78:in 
`process'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:76:in 
`synchronize'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:76:in 
`process'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:618:in 
`process_client'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:617:in `each'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:617:in 
`process_client'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `initialize'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `new'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:720:in `initialize'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:720:in `new'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:720:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:271:in 
`run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:270:in 
`each'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:270:in 
`run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/bin/mongrel_rails:127:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/command.rb:211:in 
`run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/bin/mongrel_rails:243
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:488:in 
`load'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:488:in 
`load'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:342:in 
`new_constants_in'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:488:in 
`load'
/usr/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/servers/mongrel.rb:60
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in 
`gem_original_require'
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:495:in 
`require'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:342:in 
`new_constants_in'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:495:in 
`require'
/usr/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/server.rb:39
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in 
`gem_original_require'
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
script/server:3

/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:607:in 
`join'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:607:in 
`arguments_for_call'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:708:in 
`send'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:708:in 
`call'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:703:in 
`method_missing'
#{RAILS_ROOT}/app/views/pique/whet.rjs:1:in `__bind_1173984771_406507'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/core_ext/object/extending.rb:44:in 
`[]'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/core_ext/object/extending.rb:44:in 
`instance_exec'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:313:in 
`initialize'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:625:in 
`new'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/prototype_helper.rb:625:in 
`update_page'
#{RAILS_ROOT}/app/views/pique/whet.rjs:0:in 
`_run_rjs_47app47views47pique47whet46rjs'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:326:in 
`send'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:326:in 
`compile_and_render_template'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:301:in 
`render_template'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:260:in 
`render_file'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:806:in 
`render_file'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:711:in 
`render_with_no_layout'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/layout.rb:256:in 
`render_without_benchmark'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:50:in 
`render'
/usr/lib/ruby/1.8/benchmark.rb:293:in `measure'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:50:in 
`render'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:1101:in 
`perform_action_without_filters'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:632:in 
`call_filter'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:619:in 
`perform_action_without_benchmark'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:66:in 
`perform_action_without_rescue'
/usr/lib/ruby/1.8/benchmark.rb:293:in `measure'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:66:in 
`perform_action_without_rescue'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/rescue.rb:83:in 
`perform_action'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:430:in 
`send'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:430:in 
`process_without_filters'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:624:in 
`process_without_session_management_support'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/session_management.rb:114:in 
`process'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:330:in 
`process'
/usr/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/dispatcher.rb:41:in `dispatch'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:78:in 
`process'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:76:in 
`synchronize'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:76:in 
`process'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:618:in 
`process_client'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:617:in `each'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:617:in 
`process_client'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `initialize'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `new'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:720:in `initialize'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:720:in `new'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:720:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:271:in 
`run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:270:in 
`each'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:270:in 
`run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/bin/mongrel_rails:127:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/command.rb:211:in 
`run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/bin/mongrel_rails:243
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:488:in 
`load'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:488:in 
`load'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:342:in 
`new_constants_in'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:488:in 
`load'
/usr/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/servers/mongrel.rb:60
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in 
`gem_original_require'
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:495:in 
`require'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:342:in 
`new_constants_in'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:495:in 
`require'
/usr/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/server.rb:39
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in 
`gem_original_require'
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
script/server:3

Request

Parameters: {"name"=>"Joo Fun", "commit"=>"Greet Me"}

Show session dump

---
flash: !map:ActionController::Flash::FlashHash {}


Response
Headers: {"cookie"=>[], "Content-Type"=>"text/javascript", 
"Cache-Control"=>"no-cache"}