thr3ads.net - Rails - the :id symbol [Mar 2008]

If this information is useful, please help other people find it:
Share via:

Vincent.Z

2008-Mar-18 16:37 UTC

the :id symbol

hi,all

recently,i use the :id to pass parameter between of controllers or
actions.

but,when i wanna use the

"options_from_collection_for_select($cache_keshi,:id,:title)"

it is error cos the array variable($cache_keshi) has the column which
is primary key in the tabel,and the name is the same as the parameter
symbol in url route( /:controller/:action/:id).

is there any better idea to slove the problem?

btw,i have tried the quoted literal "id",it doesnt work also.


thanks

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Frederick Cheung

2008-Mar-18 16:43 UTC

head link

Re: the :id symbol

On 18 Mar 2008, at 16:37, Vincent.Z wrote:
>
> hi,all
>
> recently,i use the :id to pass parameter between of controllers or
> actions.
>
> but,when i wanna use the
>
> "options_from_collection_for_select($cache_keshi,:id,:title)"
>
> it is error cos the array variable($cache_keshi) has the column which
> is primary key in the tabel,and the name is the same as the parameter
> symbol in url route( /:controller/:action/:id).
>
That shouldn''t be a problem - i''ve done that loads of times.
(oh and
you do know that $cache_keshi means ''global varible in ruby'').
If you can expand a little more on what you are doing and what is  
going wrong I''m sure someone can point you in the right direction.

Fred
> is there any better idea to slove the problem?
>
> btw,i have tried the quoted literal "id",it doesnt work also.
>
>
> thanks
>
> >

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Vincent.Z

2008-Mar-18 17:03 UTC

head link

Re: the :id symbol

oh,sorry to my omit.

when i use the "
options_from_collection_for_select($cache_keshi,:id,:title)"

it always prompt the error as following:

stack level too deep

Extracted source (around line #14):

11:     <td>
12: <form name="form1">
13:         <div align="justify">
14: 		<%=select_tag "科
室：",options_from_collection_for_select($cache_keshi,:id,:title)%>
15: 		<% puts $cache_keshi%>
16:         </div>
17:       </form></td>


but, when i change the :id to other column,such as :title.

options_from_collection_for_select($cache_keshi,:title,:title)

it works fine.

i just dont know why the :id symbol doesnt work.

thanks again.



>On Mar 19, 12:43 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On 18 Mar 2008, at 16:37, Vincent.Z wrote:
>
>
>
> > hi,all
>
> > recently,i use the :id to pass parameter between of controllers or
> > actions.
>
> > but,when i wanna use the
>
> >
"options_from_collection_for_select($cache_keshi,:id,:title)"
>
> > it is error cos the array variable($cache_keshi) has the column which
> > is primary key in the tabel,and the name is the same as the parameter
> > symbol in url route( /:controller/:action/:id).
>
> That shouldn''t be a problem - i''ve done that loads of
times. (oh and
> you do know that $cache_keshi means ''global varible in
ruby'').
> If you can expand a little more on what you are doing and what is  
> going wrong I''m sure someone can point you in the right direction.
>
> Fred
>
>
>
> > is there any better idea to slove the problem?
>
> > btw,i have tried the quoted literal "id",it doesnt work
also.
>
> > thanks- Hide quoted text -
>
> - Show quoted text ---~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Thorsten Mueller

2008-Mar-18 17:14 UTC

head link

Re: the :id symbol

the error is a bit strange

"stack level" would tell you, that some method
is called recursively over and over again,
until ruby runs out of stack.

i can''t see any reason for this here,
but may be found in the model
(difficult to find error, but maybe that''s of help)
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Vincent.Z

2008-Mar-18 17:25 UTC

head link

Re: the :id symbol

this is the details of error:

Showing shared/_top.html.erb where line #14 raised:

stack level too deep

Extracted source (around line #14):

11:     <td>
12: <form name="form1">
13:         <div align="justify">
14: 		<%=select_tag "科
室：",options_from_collection_for_select($cache_keshi,:id,:title)%>
15: 		<% puts $cache_keshi%>
16:         </div>
17:       </form></td>


Trace of template inclusion: /layouts/application.html.erb

RAILS_ROOT: D:/ror_app/doctor

Application Trace | Framework Trace | Full Trace
c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?'' c:/ruby/lib/ruby/gems/1.8/
gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
`generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/
lib/active_record/attribute_methods.rb:186:in `method_missing'' c:/ruby/
lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
attribute_methods.rb:194:in `method_missing'' c:/ruby/lib/ruby/gems/1.8/
gems/actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
181:in `send'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_view/helpers/form_options_helper.rb:181:in
`options_from_collection_for_select'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:180:in
`map'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
helpers/form_options_helper.rb:180:in
`options_from_collection_for_select'' app/views/shared/_top.html.erb:
14:in `_run_erb_47app47views47shared47_top46html46erb'' app/views/
layouts/application.html.erb:1:in
`_run_erb_47app47views47layouts47application46html46erb'' -e:2:in
`load''-e:2
c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?'' c:/ruby/lib/ruby/gems/1.8/
gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
`generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/
lib/active_record/attribute_methods.rb:186:in `method_missing'' c:/ruby/
lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
attribute_methods.rb:194:in `method_missing'' c:/ruby/lib/ruby/gems/1.8/
gems/actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
181:in `send'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_view/helpers/form_options_helper.rb:181:in
`options_from_collection_for_select'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:180:in
`map'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
helpers/form_options_helper.rb:180:in
`options_from_collection_for_select'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_view/base.rb:637:in `send'' c:/ruby/lib/
ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
`compile_and_render_template'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_view/base.rb:365:in `render_template'' c:/
ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:
316:in `render_file'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
lib/action_view/base.rb:331:in `render'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_view/partials.rb:117:in `render_partial''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
benchmarking.rb:26:in `benchmark'' c:/ruby/lib/ruby/1.8/benchmark.rb:
293:in `measure'' c:/ruby/lib/ruby/1.8/benchmark.rb:307:in
`realtime''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
benchmarking.rb:26:in `benchmark'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_view/partials.rb:116:in `render_partial''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
base.rb:352:in `render'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_view/base.rb:637:in `send'' c:/ruby/lib/
ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
`compile_and_render_template'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_view/base.rb:365:in `render_template'' c:/
ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:
316:in `render_file'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
lib/action_controller/layout.rb:268:in `render_without_benchmark'' c:/
ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
benchmarking.rb:51:in `render'' c:/ruby/lib/ruby/1.8/benchmark.rb:
293:in `measure'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/benchmarking.rb:51:in `render'' c:/ruby/lib/ruby/gems/
1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1153:in
`default_render'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:1159:in `perform_action_without_filters'' c:/
ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
filters.rb:697:in `call_filters'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/filters.rb:689:in
`perform_action_without_benchmark'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in
`perform_action_without_rescue'' c:/ruby/lib/ruby/1.8/benchmark.rb:
293:in `measure'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/benchmarking.rb:68:in
`perform_action_without_rescue'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/rescue.rb:199:in
`perform_action_without_caching'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/caching.rb:678:in
`perform_action'' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/connection_adapters/abstract/query_cache.rb:33:in
`cache'' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/query_cache.rb:8:in `cache'' c:/ruby/lib/ruby/gems/1.8/
gems/actionpack-2.0.2/lib/action_controller/caching.rb:677:in
`perform_action'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in `send'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/base.rb:524:in
`process_without_filters'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/filters.rb:685:in
`process_without_session_management_support'' c:/ruby/lib/ruby/gems/1.8/
gems/actionpack-2.0.2/lib/action_controller/session_management.rb:
123:in `process'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:388:in `process'' c:/ruby/lib/ruby/gems/1.8/
gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:171:in
`handle_request'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:115:in `dispatch'' c:/ruby/lib/ruby/
gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:
126:in `dispatch_cgi'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
lib/action_controller/dispatcher.rb:9:in `dispatch'' c:/ruby/lib/ruby/
gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in
`handle_dispatch'' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/
webrick_server.rb:78:in `service'' c:/ruby/lib/ruby/1.8/webrick/
httpserver.rb:104:in `service'' c:/ruby/lib/ruby/1.8/webrick/
httpserver.rb:65:in `run'' c:/ruby/lib/ruby/1.8/webrick/server.rb:
173:in `start_thread'' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
`start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
`start_thread''
c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start'' c:/ruby/lib/ruby/
1.8/webrick/server.rb:92:in `each'' c:/ruby/lib/ruby/1.8/webrick/
server.rb:92:in `start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:23:in
`start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in `start''
c:/ruby/
lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in
`dispatch'' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/
servers/webrick.rb:66 c:/ruby/lib/ruby/site_ruby/1.8/rubygems/
custom_require.rb:27:in `gem_original_require'' c:/ruby/lib/ruby/
site_ruby/1.8/rubygems/custom_require.rb:27:in `require'' c:/ruby/lib/
ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/
dependencies.rb:496:in `require'' c:/ruby/lib/ruby/gems/1.8/gems/
activesupport-2.0.2/lib/active_support/dependencies.rb:342:in
`new_constants_in'' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/
lib/active_support/dependencies.rb:496:in `require'' c:/ruby/lib/ruby/
gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39 c:/ruby/lib/ruby/
site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require''
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'' script/server:3
c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?'' c:/ruby/lib/ruby/gems/1.8/
gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
`generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/
lib/active_record/attribute_methods.rb:186:in `method_missing'' c:/ruby/
lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
attribute_methods.rb:194:in `method_missing'' c:/ruby/lib/ruby/gems/1.8/
gems/actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
181:in `send'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_view/helpers/form_options_helper.rb:181:in
`options_from_collection_for_select'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:180:in
`map'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
helpers/form_options_helper.rb:180:in
`options_from_collection_for_select'' app/views/shared/_top.html.erb:
14:in `_run_erb_47app47views47shared47_top46html46erb'' c:/ruby/lib/
ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
`send'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
base.rb:637:in `compile_and_render_template'' c:/ruby/lib/ruby/gems/1.8/
gems/actionpack-2.0.2/lib/action_view/base.rb:365:in `render_template''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
base.rb:316:in `render_file'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_view/base.rb:331:in `render'' c:/ruby/lib/
ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/partials.rb:117:in
`render_partial'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/benchmarking.rb:26:in `benchmark'' c:/ruby/lib/ruby/
1.8/benchmark.rb:293:in `measure'' c:/ruby/lib/ruby/1.8/benchmark.rb:
307:in `realtime'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/benchmarking.rb:26:in `benchmark'' c:/ruby/lib/ruby/
gems/1.8/gems/actionpack-2.0.2/lib/action_view/partials.rb:116:in
`render_partial'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_view/base.rb:352:in `render'' app/views/layouts/
application.html.erb:1:in
`_run_erb_47app47views47layouts47application46html46erb'' c:/ruby/lib/
ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
`send'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
base.rb:637:in `compile_and_render_template'' c:/ruby/lib/ruby/gems/1.8/
gems/actionpack-2.0.2/lib/action_view/base.rb:365:in `render_template''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
base.rb:316:in `render_file'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/layout.rb:268:in
`render_without_benchmark'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/benchmarking.rb:51:in `render''
c:/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure'' c:/ruby/lib/ruby/
gems/1.8/gems/actionpack-2.0.2/lib/action_controller/benchmarking.rb:
51:in `render'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:1153:in `default_render'' c:/ruby/lib/ruby/
gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1159:in
`perform_action_without_filters'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/filters.rb:697:in
`call_filters'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:689:in `perform_action_without_benchmark''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
benchmarking.rb:68:in `perform_action_without_rescue'' c:/ruby/lib/ruby/
1.8/benchmark.rb:293:in `measure'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in
`perform_action_without_rescue'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/rescue.rb:199:in
`perform_action_without_caching'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/caching.rb:678:in
`perform_action'' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/connection_adapters/abstract/query_cache.rb:33:in
`cache'' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/query_cache.rb:8:in `cache'' c:/ruby/lib/ruby/gems/1.8/
gems/actionpack-2.0.2/lib/action_controller/caching.rb:677:in
`perform_action'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in `send'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/base.rb:524:in
`process_without_filters'' c:/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/filters.rb:685:in
`process_without_session_management_support'' c:/ruby/lib/ruby/gems/1.8/
gems/actionpack-2.0.2/lib/action_controller/session_management.rb:
123:in `process'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:388:in `process'' c:/ruby/lib/ruby/gems/1.8/
gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:171:in
`handle_request'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:115:in `dispatch'' c:/ruby/lib/ruby/
gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:
126:in `dispatch_cgi'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
lib/action_controller/dispatcher.rb:9:in `dispatch'' c:/ruby/lib/ruby/
gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in
`handle_dispatch'' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/
webrick_server.rb:78:in `service'' c:/ruby/lib/ruby/1.8/webrick/
httpserver.rb:104:in `service'' c:/ruby/lib/ruby/1.8/webrick/
httpserver.rb:65:in `run'' c:/ruby/lib/ruby/1.8/webrick/server.rb:
173:in `start_thread'' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
`start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
`start_thread''
c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start'' c:/ruby/lib/ruby/
1.8/webrick/server.rb:92:in `each'' c:/ruby/lib/ruby/1.8/webrick/
server.rb:92:in `start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:23:in
`start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in `start''
c:/ruby/
lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in
`dispatch'' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/
servers/webrick.rb:66 c:/ruby/lib/ruby/site_ruby/1.8/rubygems/
custom_require.rb:27:in `gem_original_require'' c:/ruby/lib/ruby/
site_ruby/1.8/rubygems/custom_require.rb:27:in `require'' c:/ruby/lib/
ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/
dependencies.rb:496:in `require'' c:/ruby/lib/ruby/gems/1.8/gems/
activesupport-2.0.2/lib/active_support/dependencies.rb:342:in
`new_constants_in'' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/
lib/active_support/dependencies.rb:496:in `require'' c:/ruby/lib/ruby/
gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39 c:/ruby/lib/ruby/
site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require''
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'' script/server:3-e:2:in `load''-e:2
Request
Parameters:

{"keshi"=>"2"}

Show session dump

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

:csrf_id: 6bc75729893650ff8791f1eda243c51d

Response
Headers:

{"Status"=>"200 OK",
 "cookie"=>[],
 "Cache-Control"=>"no-cache"}

and, the first time after server start,it is ok,but when i refresh the
same page,it show the  error.

On Mar 19, 1:14 am, Thorsten Mueller <rails-mailing-l...@andreas-
s.net> wrote:> the error is a bit strange
>
> "stack level" would tell you, that some method
> is called recursively over and over again,
> until ruby runs out of stack.
>
> i can''t see any reason for this here,
> but may be found in the model
> (difficult to find error, but maybe that''s of help)
> --
> Posted viahttp://www.ruby-forum.com/.--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Frederick Cheung

2008-Mar-18 17:29 UTC

head link

Re: the :id symbol

On 18 Mar 2008, at 17:25, Vincent.Z wrote:
>
> this is the details of error:
>
> Showing shared/_top.html.erb where line #14 raised:
>
I''m going to go out on a limb and say it''s because
you''re using a
global variable. WHen you load the page the second time, the global  
variable is still hanging onto the old class that was destroyed by the  
class reloading that happens after request, and so bad stuff happens.

Fred.
> stack level too deep
>
> Extracted source (around line #14):
>
> 11:     <td>
> 12: <form name="form1">
> 13:         <div align="justify">
> 14: 		<%=select_tag "科
> 室：",options_from_collection_for_select($cache_keshi,:id,:title)%>
> 15: 		<% puts $cache_keshi%>
> 16:         </div>
> 17:       </form></td>
>
>
> Trace of template inclusion: /layouts/application.html.erb
>
> RAILS_ROOT: D:/ror_app/doctor
>
> Application Trace | Framework Trace | Full Trace
> c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/1.8/
> gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
> `generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/ 
> activerecord-2.0.2/
> lib/active_record/attribute_methods.rb:186:in `method_missing'' c:/
> ruby/
> lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
> attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/gems/
> 1.8/
> gems/actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
> 181:in `send'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_view/helpers/form_options_helper.rb:181:in
> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:180:in
> `map''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> helpers/form_options_helper.rb:180:in
> `options_from_collection_for_select''
app/views/shared/_top.html.erb:
> 14:in `_run_erb_47app47views47shared47_top46html46erb'' app/views/
> layouts/application.html.erb:1:in
> `_run_erb_47app47views47layouts47application46html46erb'' -e:2:in
> `load''-e:2
> c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/1.8/
> gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
> `generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/ 
> activerecord-2.0.2/
> lib/active_record/attribute_methods.rb:186:in `method_missing'' c:/
> ruby/
> lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
> attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/gems/
> 1.8/
> gems/actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
> 181:in `send'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_view/helpers/form_options_helper.rb:181:in
> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:180:in
> `map''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> helpers/form_options_helper.rb:180:in
> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_view/base.rb:637:in `send''
c:/ruby/lib/
> ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
> `compile_and_render_template'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_view/base.rb:365:in `render_template''
c:/
> ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:
> 316:in `render_file''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> lib/action_view/base.rb:331:in `render'' c:/ruby/lib/ruby/gems/1.8/
> gems/
> actionpack-2.0.2/lib/action_view/partials.rb:117:in
`render_partial''
> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
> benchmarking.rb:26:in `benchmark''
c:/ruby/lib/ruby/1.8/benchmark.rb:
> 293:in `measure'' c:/ruby/lib/ruby/1.8/benchmark.rb:307:in
`realtime''
> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
> benchmarking.rb:26:in `benchmark'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_view/partials.rb:116:in
`render_partial''
> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> base.rb:352:in `render'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_view/base.rb:637:in `send''
c:/ruby/lib/
> ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
> `compile_and_render_template'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_view/base.rb:365:in `render_template''
c:/
> ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:
> 316:in `render_file''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> lib/action_controller/layout.rb:268:in `render_without_benchmark''
c:/
> ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
> benchmarking.rb:51:in `render'' c:/ruby/lib/ruby/1.8/benchmark.rb:
> 293:in `measure''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/benchmarking.rb:51:in `render'' c:/ruby/lib/ruby/
> gems/
> 1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1153:in
> `default_render''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/base.rb:1159:in `perform_action_without_filters''
c:/
> ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
> filters.rb:697:in `call_filters'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_controller/filters.rb:689:in
> `perform_action_without_benchmark'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in
> `perform_action_without_rescue'' c:/ruby/lib/ruby/1.8/benchmark.rb:
> 293:in `measure''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/benchmarking.rb:68:in
> `perform_action_without_rescue'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_controller/rescue.rb:199:in
> `perform_action_without_caching'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_controller/caching.rb:678:in
> `perform_action''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/
> lib/
> active_record/connection_adapters/abstract/query_cache.rb:33:in
> `cache'' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
> active_record/query_cache.rb:8:in `cache''
c:/ruby/lib/ruby/gems/1.8/
> gems/actionpack-2.0.2/lib/action_controller/caching.rb:677:in
> `perform_action''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/base.rb:524:in `send'' c:/ruby/lib/ruby/gems/1.8/
> gems/
> actionpack-2.0.2/lib/action_controller/base.rb:524:in
> `process_without_filters'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_controller/filters.rb:685:in
> `process_without_session_management_support''
c:/ruby/lib/ruby/gems/
> 1.8/
> gems/actionpack-2.0.2/lib/action_controller/session_management.rb:
> 123:in `process''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/base.rb:388:in `process''
c:/ruby/lib/ruby/gems/1.8/
> gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:171:in
> `handle_request''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/dispatcher.rb:115:in `dispatch''
c:/ruby/lib/ruby/
> gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:
> 126:in `dispatch_cgi''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> lib/action_controller/dispatcher.rb:9:in `dispatch''
c:/ruby/lib/ruby/
> gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in
> `handle_dispatch'' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/
> webrick_server.rb:78:in `service'' c:/ruby/lib/ruby/1.8/webrick/
> httpserver.rb:104:in `service'' c:/ruby/lib/ruby/1.8/webrick/
> httpserver.rb:65:in `run'' c:/ruby/lib/ruby/1.8/webrick/server.rb:
> 173:in `start_thread''
c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
> `start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
`start_thread''
> c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start''
c:/ruby/lib/ruby/
> 1.8/webrick/server.rb:92:in `each'' c:/ruby/lib/ruby/1.8/webrick/
> server.rb:92:in `start''
c:/ruby/lib/ruby/1.8/webrick/server.rb:23:in
> `start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in
`start'' c:/ruby/
> lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in
> `dispatch''
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/
> servers/webrick.rb:66 c:/ruby/lib/ruby/site_ruby/1.8/rubygems/
> custom_require.rb:27:in `gem_original_require'' c:/ruby/lib/ruby/
> site_ruby/1.8/rubygems/custom_require.rb:27:in `require''
c:/ruby/lib/
> ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/
> dependencies.rb:496:in `require'' c:/ruby/lib/ruby/gems/1.8/gems/
> activesupport-2.0.2/lib/active_support/dependencies.rb:342:in
> `new_constants_in''
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/
> lib/active_support/dependencies.rb:496:in `require''
c:/ruby/lib/ruby/
> gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39 c:/ruby/lib/ruby/
> site_ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require''
> c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
> `require'' script/server:3
> c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/1.8/
> gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
> `generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/ 
> activerecord-2.0.2/
> lib/active_record/attribute_methods.rb:186:in `method_missing'' c:/
> ruby/
> lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
> attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/gems/
> 1.8/
> gems/actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
> 181:in `send'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_view/helpers/form_options_helper.rb:181:in
> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:180:in
> `map''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> helpers/form_options_helper.rb:180:in
> `options_from_collection_for_select''
app/views/shared/_top.html.erb:
> 14:in `_run_erb_47app47views47shared47_top46html46erb''
c:/ruby/lib/
> ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
> `send'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ 
> action_view/
> base.rb:637:in `compile_and_render_template''
c:/ruby/lib/ruby/gems/
> 1.8/
> gems/actionpack-2.0.2/lib/action_view/base.rb:365:in
`render_template''
> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> base.rb:316:in `render_file'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_view/base.rb:331:in `render''
c:/ruby/lib/
> ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/partials.rb:117:in
> `render_partial''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/benchmarking.rb:26:in `benchmark''
c:/ruby/lib/ruby/
> 1.8/benchmark.rb:293:in `measure''
c:/ruby/lib/ruby/1.8/benchmark.rb:
> 307:in `realtime''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/benchmarking.rb:26:in `benchmark''
c:/ruby/lib/ruby/
> gems/1.8/gems/actionpack-2.0.2/lib/action_view/partials.rb:116:in
> `render_partial''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_view/base.rb:352:in `render'' app/views/layouts/
> application.html.erb:1:in
> `_run_erb_47app47views47layouts47application46html46erb''
c:/ruby/lib/
> ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
> `send'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ 
> action_view/
> base.rb:637:in `compile_and_render_template''
c:/ruby/lib/ruby/gems/
> 1.8/
> gems/actionpack-2.0.2/lib/action_view/base.rb:365:in
`render_template''
> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> base.rb:316:in `render_file'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_controller/layout.rb:268:in
> `render_without_benchmark'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_controller/benchmarking.rb:51:in
`render''
> c:/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure''
c:/ruby/lib/ruby/
> gems/1.8/gems/actionpack-2.0.2/lib/action_controller/benchmarking.rb:
> 51:in `render''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/base.rb:1153:in `default_render''
c:/ruby/lib/ruby/
> gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1159:in
> `perform_action_without_filters'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_controller/filters.rb:697:in
> `call_filters''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/filters.rb:689:in
`perform_action_without_benchmark''
> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
> benchmarking.rb:68:in `perform_action_without_rescue'' c:/ruby/lib/
> ruby/
> 1.8/benchmark.rb:293:in `measure'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in
> `perform_action_without_rescue'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_controller/rescue.rb:199:in
> `perform_action_without_caching'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_controller/caching.rb:678:in
> `perform_action''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/
> lib/
> active_record/connection_adapters/abstract/query_cache.rb:33:in
> `cache'' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
> active_record/query_cache.rb:8:in `cache''
c:/ruby/lib/ruby/gems/1.8/
> gems/actionpack-2.0.2/lib/action_controller/caching.rb:677:in
> `perform_action''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/base.rb:524:in `send'' c:/ruby/lib/ruby/gems/1.8/
> gems/
> actionpack-2.0.2/lib/action_controller/base.rb:524:in
> `process_without_filters'' c:/ruby/lib/ruby/gems/1.8/gems/
> actionpack-2.0.2/lib/action_controller/filters.rb:685:in
> `process_without_session_management_support''
c:/ruby/lib/ruby/gems/
> 1.8/
> gems/actionpack-2.0.2/lib/action_controller/session_management.rb:
> 123:in `process''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/base.rb:388:in `process''
c:/ruby/lib/ruby/gems/1.8/
> gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:171:in
> `handle_request''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> action_controller/dispatcher.rb:115:in `dispatch''
c:/ruby/lib/ruby/
> gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:
> 126:in `dispatch_cgi''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> lib/action_controller/dispatcher.rb:9:in `dispatch''
c:/ruby/lib/ruby/
> gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in
> `handle_dispatch'' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/
> webrick_server.rb:78:in `service'' c:/ruby/lib/ruby/1.8/webrick/
> httpserver.rb:104:in `service'' c:/ruby/lib/ruby/1.8/webrick/
> httpserver.rb:65:in `run'' c:/ruby/lib/ruby/1.8/webrick/server.rb:
> 173:in `start_thread''
c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
> `start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
`start_thread''
> c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start''
c:/ruby/lib/ruby/
> 1.8/webrick/server.rb:92:in `each'' c:/ruby/lib/ruby/1.8/webrick/
> server.rb:92:in `start''
c:/ruby/lib/ruby/1.8/webrick/server.rb:23:in
> `start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in
`start'' c:/ruby/
> lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in
> `dispatch''
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/
> servers/webrick.rb:66 c:/ruby/lib/ruby/site_ruby/1.8/rubygems/
> custom_require.rb:27:in `gem_original_require'' c:/ruby/lib/ruby/
> site_ruby/1.8/rubygems/custom_require.rb:27:in `require''
c:/ruby/lib/
> ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/
> dependencies.rb:496:in `require'' c:/ruby/lib/ruby/gems/1.8/gems/
> activesupport-2.0.2/lib/active_support/dependencies.rb:342:in
> `new_constants_in''
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/
> lib/active_support/dependencies.rb:496:in `require''
c:/ruby/lib/ruby/
> gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39 c:/ruby/lib/ruby/
> site_ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require''
> c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
> `require'' script/server:3-e:2:in `load''-e:2
> Request
> Parameters:
>
> {"keshi"=>"2"}
>
> Show session dump
>
> ---
> flash: !map:ActionController::Flash::FlashHash {}
>
> :csrf_id: 6bc75729893650ff8791f1eda243c51d
>
> Response
> Headers:
>
> {"Status"=>"200 OK",
> "cookie"=>[],
> "Cache-Control"=>"no-cache"}
>
> and, the first time after server start,it is ok,but when i refresh the
> same page,it show the  error.
>
> On Mar 19, 1:14 am, Thorsten Mueller <rails-mailing-l...@andreas-
> s.net> wrote:
>> the error is a bit strange
>>
>> "stack level" would tell you, that some method
>> is called recursively over and over again,
>> until ruby runs out of stack.
>>
>> i can''t see any reason for this here,
>> but may be found in the model
>> (difficult to find error, but maybe that''s of help)
>> --
>> Posted viahttp://www.ruby-forum.com/.
> >

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Vincent.Z

2008-Mar-18 18:02 UTC

head link

Re: the :id symbol

hang onto old class?

can you provide more details?

but,when i changed it to :

<
%=select_tag("",options_from_collection_for_select($cache_keshi,:title,:title))
%>

it works.why? i just replace the :id with :title.



On Mar 19, 1:29 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On 18 Mar 2008, at 17:25, Vincent.Z wrote:
>
>
>
> > this is the details of error:
>
> > Showing shared/_top.html.erb where line #14 raised:
>
> I''m going to go out on a limb and say it''s because
you''re using a
> global variable. WHen you load the page the second time, the global  
> variable is still hanging onto the old class that was destroyed by the  
> class reloading that happens after request, and so bad stuff happens.
>
> Fred.
>
>
>
> > stack level too deep
>
> > Extracted source (around line #14):
>
> > 11:     <td>
> > 12: <form name="form1">
> > 13:         <div align="justify">
> > 14:                <%=select_tag "科
> >
室：",options_from_collection_for_select($cache_keshi,:id,:title)%>
> > 15:                <% puts $cache_keshi%>
> > 16:         </div>
> > 17:       </form></td>
>
> > Trace of template inclusion: /layouts/application.html.erb
>
> > RAILS_ROOT: D:/ror_app/doctor
>
> > Application Trace | Framework Trace | Full Trace
> > c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/1.8/
> > gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
> > `generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/
> > activerecord-2.0.2/
> > lib/active_record/attribute_methods.rb:186:in
`method_missing'' c:/
> > ruby/
> > lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
> > attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/gems/
> > 1.8/
> > gems/actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
> > 181:in `send''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> > action_view/helpers/form_options_helper.rb:181:in
> > `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:180:in
> > `map''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> > helpers/form_options_helper.rb:180:in
> > `options_from_collection_for_select''
app/views/shared/_top.html.erb:
> > 14:in `_run_erb_47app47views47shared47_top46html46erb''
app/views/
> > layouts/application.html.erb:1:in
> > `_run_erb_47app47views47layouts47application46html46erb''
-e:2:in
> > `load''-e:2
> > c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/1.8/
> > gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
> > `generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/
> > activerecord-2.0.2/
> > lib/active_record/attribute_methods.rb:186:in
`method_missing'' c:/
> > ruby/
> > lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
> > attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/gems/
> > 1.8/
> > gems/actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
> > 181:in `send''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> > action_view/helpers/form_options_helper.rb:181:in
> > `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:180:in
> > `map''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> > helpers/form_options_helper.rb:180:in
> > `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_view/base.rb:637:in `send''
c:/ruby/lib/
> > ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
> > `compile_and_render_template'' c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_view/base.rb:365:in
`render_template'' c:/
> > ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:
> > 316:in `render_file''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> > lib/action_view/base.rb:331:in `render''
c:/ruby/lib/ruby/gems/1.8/
> > gems/
> > actionpack-2.0.2/lib/action_view/partials.rb:117:in
`render_partial''
> > c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
> > benchmarking.rb:26:in `benchmark''
c:/ruby/lib/ruby/1.8/benchmark.rb:
> > 293:in `measure'' c:/ruby/lib/ruby/1.8/benchmark.rb:307:in
`realtime''
> > c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
> > benchmarking.rb:26:in `benchmark''
c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_view/partials.rb:116:in
`render_partial''
> > c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> > base.rb:352:in `render'' c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_view/base.rb:637:in `send''
c:/ruby/lib/
> > ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
> > `compile_and_render_template'' c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_view/base.rb:365:in
`render_template'' c:/
> > ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:
> > 316:in `render_file''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> > lib/action_controller/layout.rb:268:in
`render_without_benchmark'' c:/
> > ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
> > benchmarking.rb:51:in `render''
c:/ruby/lib/ruby/1.8/benchmark.rb:
> > 293:in `measure''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> > action_controller/benchmarking.rb:51:in `render''
c:/ruby/lib/ruby/
> > gems/
> > 1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1153:in
> > `default_render''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> > action_controller/base.rb:1159:in
`perform_action_without_filters'' c:/
> > ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
> > filters.rb:697:in `call_filters''
c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_controller/filters.rb:689:in
> > `perform_action_without_benchmark''
c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in
> > `perform_action_without_rescue''
c:/ruby/lib/ruby/1.8/benchmark.rb:
> > 293:in `measure''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> > action_controller/benchmarking.rb:68:in
> > `perform_action_without_rescue''
c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_controller/rescue.rb:199:in
> > `perform_action_without_caching''
c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_controller/caching.rb:678:in
> > `perform_action''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/
> > lib/
> > active_record/connection_adapters/abstract/query_cache.rb:33:in
> > `cache''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
> > active_record/query_cache.rb:8:in `cache''
c:/ruby/lib/ruby/gems/1.8/
> > gems/actionpack-2.0.2/lib/action_controller/caching.rb:677:in
> > `perform_action''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> > action_controller/base.rb:524:in `send''
c:/ruby/lib/ruby/gems/1.8/
> > gems/
> > actionpack-2.0.2/lib/action_controller/base.rb:524:in
> > `process_without_filters'' c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_controller/filters.rb:685:in
> > `process_without_session_management_support''
c:/ruby/lib/ruby/gems/
> > 1.8/
> > gems/actionpack-2.0.2/lib/action_controller/session_management.rb:
> > 123:in `process''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> > action_controller/base.rb:388:in `process''
c:/ruby/lib/ruby/gems/1.8/
> > gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:171:in
> > `handle_request''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> > action_controller/dispatcher.rb:115:in `dispatch''
c:/ruby/lib/ruby/
> > gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:
> > 126:in `dispatch_cgi''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> > lib/action_controller/dispatcher.rb:9:in `dispatch''
c:/ruby/lib/ruby/
> > gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in
> > `handle_dispatch''
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/
> > webrick_server.rb:78:in `service''
c:/ruby/lib/ruby/1.8/webrick/
> > httpserver.rb:104:in `service'' c:/ruby/lib/ruby/1.8/webrick/
> > httpserver.rb:65:in `run''
c:/ruby/lib/ruby/1.8/webrick/server.rb:
> > 173:in `start_thread''
c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
> > `start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
`start_thread''
> > c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start''
c:/ruby/lib/ruby/
> > 1.8/webrick/server.rb:92:in `each''
c:/ruby/lib/ruby/1.8/webrick/
> > server.rb:92:in `start''
c:/ruby/lib/ruby/1.8/webrick/server.rb:23:in
> > `start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in
`start'' c:/ruby/
> > lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in
> > `dispatch''
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/
> > servers/webrick.rb:66 c:/ruby/lib/ruby/site_ruby/1.8/rubygems/
> > custom_require.rb:27:in `gem_original_require''
c:/ruby/lib/ruby/
> > site_ruby/1.8/rubygems/custom_require.rb:27:in `require''
c:/ruby/lib/
> > ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/
> > dependencies.rb:496:in `require''
c:/ruby/lib/ruby/gems/1.8/gems/
> > activesupport-2.0.2/lib/active_support/dependencies.rb:342:in
> > `new_constants_in''
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/
> > lib/active_support/dependencies.rb:496:in `require''
c:/ruby/lib/ruby/
> > gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39 c:/ruby/lib/ruby/
> > site_ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require''
> > c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
> > `require'' script/server:3
> > c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/1.8/
> > gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
> > `generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/
> > activerecord-2.0.2/
> > lib/active_record/attribute_methods.rb:186:in
`method_missing'' c:/
> > ruby/
> > lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
> > attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/gems/
> > 1.8/
> > gems/actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
> > 181:in `send''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> > action_view/helpers/form_options_helper.rb:181:in
> > `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
> > actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:180:in
> > `map''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> > helpers/form_options_helper.rb:180:in
> > `options_from_collection_for_select''
app/views/shared/_top.html.erb:
> > 14:in `_run_erb_47app47views47shared47_top46html46erb''
c:/ruby/lib/
>
> ...
>
> read more >>- Hide quoted text -
>
> - Show quoted text ---~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Frederick Cheung

2008-Mar-18 18:46 UTC

head link

Re: the :id symbol

On 18 Mar 2008, at 18:02, Vincent.Z wrote:
>
> hang onto old class?
>
> can you provide more details?Rails reloads classes after each request in development mode, you''ve  
got a global variable so weird stuff can happen.

Fred>
>
> but,when i changed it to :
>
> <
> %= 
> select_tag 
>
("",options_from_collection_for_select($cache_keshi,:title,:title))
> %>
>
> it works.why? i just replace the :id with :title.
>
>
>
> On Mar 19, 1:29 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>> On 18 Mar 2008, at 17:25, Vincent.Z wrote:
>>
>>
>>
>>> this is the details of error:
>>
>>> Showing shared/_top.html.erb where line #14 raised:
>>
>> I''m going to go out on a limb and say it''s because
you''re using a
>> global variable. WHen you load the page the second time, the global
>> variable is still hanging onto the old class that was destroyed by  
>> the
>> class reloading that happens after request, and so bad stuff happens.
>>
>> Fred.
>>
>>
>>
>>> stack level too deep
>>
>>> Extracted source (around line #14):
>>
>>> 11:     <td>
>>> 12: <form name="form1">
>>> 13:         <div align="justify">
>>> 14:                <%=select_tag "科
>>>
室：",options_from_collection_for_select($cache_keshi,:id,:title)
>>> %>
>>> 15:                <% puts $cache_keshi%>
>>> 16:         </div>
>>> 17:       </form></td>
>>
>>> Trace of template inclusion: /layouts/application.html.erb
>>
>>> RAILS_ROOT: D:/ror_app/doctor
>>
>>> Application Trace | Framework Trace | Full Trace
>>> c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/
>>> 1.8/
>>>
gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
>>> `generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/
>>> activerecord-2.0.2/
>>> lib/active_record/attribute_methods.rb:186:in
`method_missing'' c:/
>>> ruby/
>>> lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
>>> attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/gems/
>>> 1.8/
>>> gems/actionpack-2.0.2/lib/action_view/helpers/ 
>>> form_options_helper.rb:
>>> 181:in `send''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
>>> action_view/helpers/form_options_helper.rb:181:in
>>> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb: 
>>> 180:in
>>> `map'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
>>> action_view/
>>> helpers/form_options_helper.rb:180:in
>>> `options_from_collection_for_select''
app/views/shared/_top.html.erb:
>>> 14:in `_run_erb_47app47views47shared47_top46html46erb''
app/views/
>>> layouts/application.html.erb:1:in
>>> `_run_erb_47app47views47layouts47application46html46erb''
-e:2:in
>>> `load''-e:2
>>> c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/
>>> 1.8/
>>>
gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
>>> `generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/
>>> activerecord-2.0.2/
>>> lib/active_record/attribute_methods.rb:186:in
`method_missing'' c:/
>>> ruby/
>>> lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
>>> attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/gems/
>>> 1.8/
>>> gems/actionpack-2.0.2/lib/action_view/helpers/ 
>>> form_options_helper.rb:
>>> 181:in `send''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
>>> action_view/helpers/form_options_helper.rb:181:in
>>> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb: 
>>> 180:in
>>> `map'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
>>> action_view/
>>> helpers/form_options_helper.rb:180:in
>>> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_view/base.rb:637:in `send''
c:/ruby/lib/
>>> ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
>>> `compile_and_render_template''
c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_view/base.rb:365:in
`render_template''
>>> c:/
>>> ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/ 
>>> base.rb:
>>> 316:in `render_file'' c:/ruby/lib/ruby/gems/1.8/gems/ 
>>> actionpack-2.0.2/
>>> lib/action_view/base.rb:331:in `render''
c:/ruby/lib/ruby/gems/1.8/
>>> gems/
>>> actionpack-2.0.2/lib/action_view/partials.rb:117:in
`render_partial''
>>> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ 
>>> action_controller/
>>> benchmarking.rb:26:in `benchmark''
c:/ruby/lib/ruby/1.8/benchmark.rb:
>>> 293:in `measure'' c:/ruby/lib/ruby/1.8/benchmark.rb:307:in
`realtime''
>>> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ 
>>> action_controller/
>>> benchmarking.rb:26:in `benchmark''
c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_view/partials.rb:116:in
`render_partial''
>>> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
>>> base.rb:352:in `render'' c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_view/base.rb:637:in `send''
c:/ruby/lib/
>>> ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
>>> `compile_and_render_template''
c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_view/base.rb:365:in
`render_template''
>>> c:/
>>> ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/ 
>>> base.rb:
>>> 316:in `render_file'' c:/ruby/lib/ruby/gems/1.8/gems/ 
>>> actionpack-2.0.2/
>>> lib/action_controller/layout.rb:268:in
`render_without_benchmark''
>>> c:/
>>> ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
>>> benchmarking.rb:51:in `render''
c:/ruby/lib/ruby/1.8/benchmark.rb:
>>> 293:in `measure''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
>>> lib/
>>> action_controller/benchmarking.rb:51:in `render''
c:/ruby/lib/ruby/
>>> gems/
>>> 1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1153:in
>>> `default_render''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
>>> lib/
>>> action_controller/base.rb:1159:in
`perform_action_without_filters''
>>> c:/
>>> ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
>>> filters.rb:697:in `call_filters''
c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_controller/filters.rb:689:in
>>> `perform_action_without_benchmark''
c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in
>>> `perform_action_without_rescue''
c:/ruby/lib/ruby/1.8/benchmark.rb:
>>> 293:in `measure''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
>>> lib/
>>> action_controller/benchmarking.rb:68:in
>>> `perform_action_without_rescue''
c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_controller/rescue.rb:199:in
>>> `perform_action_without_caching''
c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_controller/caching.rb:678:in
>>> `perform_action''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/
>>> lib/
>>> active_record/connection_adapters/abstract/query_cache.rb:33:in
>>> `cache''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
>>> active_record/query_cache.rb:8:in `cache''
c:/ruby/lib/ruby/gems/1.8/
>>> gems/actionpack-2.0.2/lib/action_controller/caching.rb:677:in
>>> `perform_action''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
>>> lib/
>>> action_controller/base.rb:524:in `send''
c:/ruby/lib/ruby/gems/1.8/
>>> gems/
>>> actionpack-2.0.2/lib/action_controller/base.rb:524:in
>>> `process_without_filters'' c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_controller/filters.rb:685:in
>>> `process_without_session_management_support''
c:/ruby/lib/ruby/gems/
>>> 1.8/
>>> gems/actionpack-2.0.2/lib/action_controller/session_management.rb:
>>> 123:in `process''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
>>> lib/
>>> action_controller/base.rb:388:in `process''
c:/ruby/lib/ruby/gems/
>>> 1.8/
>>> gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:171:in
>>> `handle_request''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
>>> lib/
>>> action_controller/dispatcher.rb:115:in `dispatch''
c:/ruby/lib/ruby/
>>> gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:
>>> 126:in `dispatch_cgi'' c:/ruby/lib/ruby/gems/1.8/gems/ 
>>> actionpack-2.0.2/
>>> lib/action_controller/dispatcher.rb:9:in `dispatch''
c:/ruby/lib/
>>> ruby/
>>> gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in
>>> `handle_dispatch''
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/
>>> webrick_server.rb:78:in `service''
c:/ruby/lib/ruby/1.8/webrick/
>>> httpserver.rb:104:in `service''
c:/ruby/lib/ruby/1.8/webrick/
>>> httpserver.rb:65:in `run''
c:/ruby/lib/ruby/1.8/webrick/server.rb:
>>> 173:in `start_thread''
c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
>>> `start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
`start_thread''
>>> c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start''
c:/ruby/lib/
>>> ruby/
>>> 1.8/webrick/server.rb:92:in `each''
c:/ruby/lib/ruby/1.8/webrick/
>>> server.rb:92:in `start''
c:/ruby/lib/ruby/1.8/webrick/server.rb:23:in
>>> `start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in
`start'' c:/
>>> ruby/
>>> lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in
>>> `dispatch''
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/
>>> servers/webrick.rb:66 c:/ruby/lib/ruby/site_ruby/1.8/rubygems/
>>> custom_require.rb:27:in `gem_original_require''
c:/ruby/lib/ruby/
>>> site_ruby/1.8/rubygems/custom_require.rb:27:in `require''
c:/ruby/
>>> lib/
>>> ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/
>>> dependencies.rb:496:in `require''
c:/ruby/lib/ruby/gems/1.8/gems/
>>> activesupport-2.0.2/lib/active_support/dependencies.rb:342:in
>>> `new_constants_in'' c:/ruby/lib/ruby/gems/1.8/gems/ 
>>> activesupport-2.0.2/
>>> lib/active_support/dependencies.rb:496:in `require''
c:/ruby/lib/
>>> ruby/
>>> gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39 c:/ruby/lib/ 
>>> ruby/
>>> site_ruby/1.8/rubygems/custom_require.rb:27:in  
>>> `gem_original_require''
>>> c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
>>> `require'' script/server:3
>>> c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/
>>> 1.8/
>>>
gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
>>> `generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/
>>> activerecord-2.0.2/
>>> lib/active_record/attribute_methods.rb:186:in
`method_missing'' c:/
>>> ruby/
>>> lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
>>> attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/gems/
>>> 1.8/
>>> gems/actionpack-2.0.2/lib/action_view/helpers/ 
>>> form_options_helper.rb:
>>> 181:in `send''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
>>> action_view/helpers/form_options_helper.rb:181:in
>>> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
>>> actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb: 
>>> 180:in
>>> `map'' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
>>> action_view/
>>> helpers/form_options_helper.rb:180:in
>>> `options_from_collection_for_select''
app/views/shared/_top.html.erb:
>>> 14:in `_run_erb_47app47views47shared47_top46html46erb''
c:/ruby/lib/
>>
>> ...
>>
>> read more >>- Hide quoted text -
>>
>> - Show quoted text -
> >

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Vincent.Z

2008-Mar-19 05:42 UTC

head link

Re: the :id symbol

oh,it work fine in the production mode. :)

but,i have some coufusions.

i set and assign the global variable in the initializar/load_keshi.rb
file.as following:
$cache_keshi=Keshi.find(:all)
then in the view,i use the

options_from_collection_for_select($cache_keshi,"id","title")

.

it is just a variable,not class,what is the diff between the
development and production mode to the global variable?

and why the error info is "stack level too deep "?and why it works
when i change "id" to "title"?(maybe it does matter with the
primary
key??)


thanks much for your help





On Mar 19, 2:46 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On 18 Mar 2008, at 18:02, Vincent.Z wrote:
>
>
>
> > hang onto old class?
>
> > can you provide more details?
>
> Rails reloads classes after each request in development mode,
you''ve
> got a global variable so weird stuff can happen.
>
> Fred
>
>
>
>
>
> > but,when i changed it to :
>
> > <
> > %> > select_tag
> >
("",options_from_collection_for_select($cache_keshi,:title,:title))
> > %>
>
> > it works.why? i just replace the :id with :title.
>
> > On Mar 19, 1:29 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > wrote:
> >> On 18 Mar 2008, at 17:25, Vincent.Z wrote:
>
> >>> this is the details of error:
>
> >>> Showing shared/_top.html.erb where line #14 raised:
>
> >> I''m going to go out on a limb and say it''s
because you''re using a
> >> global variable. WHen you load the page the second time, the
global
> >> variable is still hanging onto the old class that was destroyed by
> >> the
> >> class reloading that happens after request, and so bad stuff
happens.
>
> >> Fred.
>
> >>> stack level too deep
>
> >>> Extracted source (around line #14):
>
> >>> 11:     <td>
> >>> 12: <form name="form1">
> >>> 13:         <div align="justify">
> >>> 14:                <%=select_tag "科
> >>>
室：",options_from_collection_for_select($cache_keshi,:id,:title)
> >>> %>
> >>> 15:                <% puts $cache_keshi%>
> >>> 16:         </div>
> >>> 17:       </form></td>
>
> >>> Trace of template inclusion: /layouts/application.html.erb
>
> >>> RAILS_ROOT: D:/ror_app/doctor
>
> >>> Application Trace | Framework Trace | Full Trace
> >>> c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/
> >>> 1.8/
> >>>
gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
> >>> `generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/
> >>> activerecord-2.0.2/
> >>> lib/active_record/attribute_methods.rb:186:in
`method_missing'' c:/
> >>> ruby/
> >>> lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
> >>> attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/gems/
> >>> 1.8/
> >>> gems/actionpack-2.0.2/lib/action_view/helpers/
> >>> form_options_helper.rb:
> >>> 181:in `send''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> >>> action_view/helpers/form_options_helper.rb:181:in
> >>> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>>
actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
> >>> 180:in
> >>> `map''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> >>> action_view/
> >>> helpers/form_options_helper.rb:180:in
> >>> `options_from_collection_for_select''
app/views/shared/_top.html.erb:
> >>> 14:in
`_run_erb_47app47views47shared47_top46html46erb'' app/views/
> >>> layouts/application.html.erb:1:in
> >>>
`_run_erb_47app47views47layouts47application46html46erb'' -e:2:in
> >>> `load''-e:2
> >>> c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/
> >>> 1.8/
> >>>
gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:56:in
> >>> `generated_methods?'' c:/ruby/lib/ruby/gems/1.8/gems/
> >>> activerecord-2.0.2/
> >>> lib/active_record/attribute_methods.rb:186:in
`method_missing'' c:/
> >>> ruby/
> >>> lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
> >>> attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/gems/
> >>> 1.8/
> >>> gems/actionpack-2.0.2/lib/action_view/helpers/
> >>> form_options_helper.rb:
> >>> 181:in `send''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> >>> action_view/helpers/form_options_helper.rb:181:in
> >>> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>>
actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
> >>> 180:in
> >>> `map''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> >>> action_view/
> >>> helpers/form_options_helper.rb:180:in
> >>> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/lib/action_view/base.rb:637:in
`send'' c:/ruby/lib/
> >>>
ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
> >>> `compile_and_render_template''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/lib/action_view/base.rb:365:in
`render_template''
> >>> c:/
> >>> ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> >>> base.rb:
> >>> 316:in `render_file'' c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/
> >>> lib/action_view/base.rb:331:in `render''
c:/ruby/lib/ruby/gems/1.8/
> >>> gems/
> >>> actionpack-2.0.2/lib/action_view/partials.rb:117:in
`render_partial''
> >>> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> >>> action_controller/
> >>> benchmarking.rb:26:in `benchmark''
c:/ruby/lib/ruby/1.8/benchmark.rb:
> >>> 293:in `measure''
c:/ruby/lib/ruby/1.8/benchmark.rb:307:in `realtime''
> >>> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
> >>> action_controller/
> >>> benchmarking.rb:26:in `benchmark''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/lib/action_view/partials.rb:116:in
`render_partial''
> >>>
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> >>> base.rb:352:in `render''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/lib/action_view/base.rb:637:in
`send'' c:/ruby/lib/
> >>>
ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
> >>> `compile_and_render_template''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/lib/action_view/base.rb:365:in
`render_template''
> >>> c:/
> >>> ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
> >>> base.rb:
> >>> 316:in `render_file'' c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/
> >>> lib/action_controller/layout.rb:268:in
`render_without_benchmark''
> >>> c:/
> >>>
ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
> >>> benchmarking.rb:51:in `render''
c:/ruby/lib/ruby/1.8/benchmark.rb:
> >>> 293:in `measure''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> >>> lib/
> >>> action_controller/benchmarking.rb:51:in `render''
c:/ruby/lib/ruby/
> >>> gems/
> >>>
1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1153:in
> >>> `default_render''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> >>> lib/
> >>> action_controller/base.rb:1159:in
`perform_action_without_filters''
> >>> c:/
> >>>
ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/
> >>> filters.rb:697:in `call_filters''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/lib/action_controller/filters.rb:689:in
> >>> `perform_action_without_benchmark''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in
> >>> `perform_action_without_rescue''
c:/ruby/lib/ruby/1.8/benchmark.rb:
> >>> 293:in `measure''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> >>> lib/
> >>> action_controller/benchmarking.rb:68:in
> >>> `perform_action_without_rescue''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/lib/action_controller/rescue.rb:199:in
> >>> `perform_action_without_caching''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/lib/action_controller/caching.rb:678:in
> >>> `perform_action''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/
> >>> lib/
> >>>
active_record/connection_adapters/abstract/query_cache.rb:33:in
> >>> `cache''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
> >>> active_record/query_cache.rb:8:in `cache''
c:/ruby/lib/ruby/gems/1.8/
> >>> gems/actionpack-2.0.2/lib/action_controller/caching.rb:677:in
> >>> `perform_action''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> >>> lib/
> >>> action_controller/base.rb:524:in `send''
c:/ruby/lib/ruby/gems/1.8/
> >>> gems/
> >>> actionpack-2.0.2/lib/action_controller/base.rb:524:in
> >>> `process_without_filters''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/lib/action_controller/filters.rb:685:in
> >>> `process_without_session_management_support''
c:/ruby/lib/ruby/gems/
> >>> 1.8/
> >>>
gems/actionpack-2.0.2/lib/action_controller/session_management.rb:
> >>> 123:in `process''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> >>> lib/
> >>> action_controller/base.rb:388:in `process''
c:/ruby/lib/ruby/gems/
> >>> 1.8/
> >>>
gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:171:in
> >>> `handle_request''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
> >>> lib/
> >>> action_controller/dispatcher.rb:115:in `dispatch''
c:/ruby/lib/ruby/
> >>>
gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:
> >>> 126:in `dispatch_cgi'' c:/ruby/lib/ruby/gems/1.8/gems/
> >>> actionpack-2.0.2/
> >>> lib/action_controller/dispatcher.rb:9:in `dispatch''
c:/ruby/lib/
> >>> ruby/
> >>> gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in
> >>> `handle_dispatch''
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/
> >>> webrick_server.rb:78:in `service''
c:/ruby/lib/ruby/1.8/webrick/
> >>> httpserver.rb:104:in `service''
c:/ruby/lib/ruby/1.8/webrick/
> >>> httpserver.rb:65:in `run''
c:/ruby/lib/ruby/1.8/webrick/server.rb:
> >>> 173:in `start_thread''
c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
> >>> `start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
`start_thread''
> >>> c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start''
c:/ruby/lib/
> >>> ruby/
> >>> 1.8/webrick/server.rb:92:in `each''
c:/ruby/lib/ruby/1.8/webrick/
> >>> server.rb:92:in `start''
c:/ruby/lib/ruby/1.8/webrick/server.rb:23:in
> >>> `start'' c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in
`start'' c:/
> >>> ruby/
> >>> lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in
> >>> `dispatch''
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/
> >>> servers/webrick.rb:66 c:/ruby/lib/ruby/site_ruby/1.8/rubygems/
> >>> custom_require.rb:27:in `gem_original_require''
c:/ruby/lib/ruby/
> >>> site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'' c:/ruby/
> >>> lib/
> >>> ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/
> >>> dependencies.rb:496:in `require''
c:/ruby/lib/ruby/gems/1.8/gems/
> >>> activesupport-2.0.2/lib/active_support/dependencies.rb:342:in
> >>> `new_constants_in'' c:/ruby/lib/ruby/gems/1.8/gems/
> >>> activesupport-2.0.2/
> >>> lib/active_support/dependencies.rb:496:in `require''
c:/ruby/lib/
> >>> ruby/
> >>> gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39
c:/ruby/lib/
> >>> ruby/
> >>> site_ruby/1.8/rubygems/custom_require.rb:27:in  
> >>> `gem_original_require''
> >>>
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
> >>> `require'' script/server:3
>
> ...
>
> read more >>- Hide quoted text -
>
> - Show quoted text ---~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Frederick Cheung

2008-Mar-19 07:52 UTC

head link

Re: the :id symbol

On 19 Mar 2008, at 05:42, Vincent.Z wrote:
>
> oh,it work fine in the production mode. :)
>
> but,i have some coufusions.
>
> i set and assign the global variable in the initializar/load_keshi.rb
> file.as following:
> $cache_keshi=Keshi.find(:all)
> then in the view,i use the
>
>
options_from_collection_for_select($cache_keshi,"id","title")
>
> .
>
> it is just a variable,not class,what is the diff between the
> development and production mode to the global variable?
>Because in production mode classes aren''t reloaded. Yes it''s
just an
array, but this array contains objects and those objects refer back to  
their class.> and why the error info is "stack level too deep "?and why it
works
> when i change "id" to "title"?(maybe it does matter
with the primary
> key??)
What i''ve been trying to say is that if you do stuff like this, weird  
and unpredictable things happen. The fact that it does not happen in  
production mode only confirms this. Using a global variable like this  
is a bad idea.
You''re be far better off (if this is really necessary) having a static
method on the Keshi class that caches things.
Fred>
>
>
> thanks much for your help
>
>
>
>
>
> On Mar 19, 2:46 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>> On 18 Mar 2008, at 18:02, Vincent.Z wrote:
>>
>>
>>
>>> hang onto old class?
>>
>>> can you provide more details?
>>
>> Rails reloads classes after each request in development mode,
you''ve
>> got a global variable so weird stuff can happen.
>>
>> Fred
>>
>>
>>
>>
>>
>>> but,when i changed it to :
>>
>>> <
>>> %>>> select_tag
>>>
("",options_from_collection_for_select($cache_keshi,:title,:title))
>>> %>
>>
>>> it works.why? i just replace the :id with :title.
>>
>>> On Mar 19, 1:29 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>>> wrote:
>>>> On 18 Mar 2008, at 17:25, Vincent.Z wrote:
>>
>>>>> this is the details of error:
>>
>>>>> Showing shared/_top.html.erb where line #14 raised:
>>
>>>> I''m going to go out on a limb and say it''s
because you''re using a
>>>> global variable. WHen you load the page the second time, the
global
>>>> variable is still hanging onto the old class that was destroyed
by
>>>> the
>>>> class reloading that happens after request, and so bad stuff  
>>>> happens.
>>
>>>> Fred.
>>
>>>>> stack level too deep
>>
>>>>> Extracted source (around line #14):
>>
>>>>> 11:     <td>
>>>>> 12: <form name="form1">
>>>>> 13:         <div align="justify">
>>>>> 14:                <%=select_tag "科
>>>>> 室 
>>>>>
：",options_from_collection_for_select($cache_keshi,:id,:title)
>>>>> %>
>>>>> 15:                <% puts $cache_keshi%>
>>>>> 16:         </div>
>>>>> 17:       </form></td>
>>
>>>>> Trace of template inclusion: /layouts/application.html.erb
>>
>>>>> RAILS_ROOT: D:/ror_app/doctor
>>
>>>>> Application Trace | Framework Trace | Full Trace
>>>>> c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/
>>>>> 1.8/
>>>>>
gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:
>>>>> 56:in
>>>>> `generated_methods?''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> activerecord-2.0.2/
>>>>> lib/active_record/attribute_methods.rb:186:in
`method_missing'' c:/
>>>>> ruby/
>>>>>
lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
>>>>> attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/
>>>>> gems/
>>>>> 1.8/
>>>>> gems/actionpack-2.0.2/lib/action_view/helpers/
>>>>> form_options_helper.rb:
>>>>> 181:in `send''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
>>>>> action_view/helpers/form_options_helper.rb:181:in
>>>>> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/
>>>>> gems/
>>>>>
actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
>>>>> 180:in
>>>>> `map''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
>>>>> action_view/
>>>>> helpers/form_options_helper.rb:180:in
>>>>> `options_from_collection_for_select''
app/views/shared/
>>>>> _top.html.erb:
>>>>> 14:in
`_run_erb_47app47views47shared47_top46html46erb'' app/views/
>>>>> layouts/application.html.erb:1:in
>>>>>
`_run_erb_47app47views47layouts47application46html46erb'' -e:2:in
>>>>> `load''-e:2
>>>>> c:/ruby/lib/ruby/1.8/set.rb:89:in `empty?''
c:/ruby/lib/ruby/gems/
>>>>> 1.8/
>>>>>
gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:
>>>>> 56:in
>>>>> `generated_methods?''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> activerecord-2.0.2/
>>>>> lib/active_record/attribute_methods.rb:186:in
`method_missing'' c:/
>>>>> ruby/
>>>>>
lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
>>>>> attribute_methods.rb:194:in `method_missing''
c:/ruby/lib/ruby/
>>>>> gems/
>>>>> 1.8/
>>>>> gems/actionpack-2.0.2/lib/action_view/helpers/
>>>>> form_options_helper.rb:
>>>>> 181:in `send''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
>>>>> action_view/helpers/form_options_helper.rb:181:in
>>>>> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/
>>>>> gems/
>>>>>
actionpack-2.0.2/lib/action_view/helpers/form_options_helper.rb:
>>>>> 180:in
>>>>> `map''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
>>>>> action_view/
>>>>> helpers/form_options_helper.rb:180:in
>>>>> `options_from_collection_for_select''
c:/ruby/lib/ruby/gems/1.8/
>>>>> gems/
>>>>> actionpack-2.0.2/lib/action_view/base.rb:637:in
`send'' c:/ruby/
>>>>> lib/
>>>>>
ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
>>>>> `compile_and_render_template''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> actionpack-2.0.2/lib/action_view/base.rb:365:in
`render_template''
>>>>> c:/
>>>>>
ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
>>>>> base.rb:
>>>>> 316:in `render_file''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> actionpack-2.0.2/
>>>>> lib/action_view/base.rb:331:in `render''
c:/ruby/lib/ruby/gems/1.8/
>>>>> gems/
>>>>> actionpack-2.0.2/lib/action_view/partials.rb:117:in  
>>>>> `render_partial''
>>>>> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
>>>>> action_controller/
>>>>> benchmarking.rb:26:in `benchmark''
c:/ruby/lib/ruby/1.8/
>>>>> benchmark.rb:
>>>>> 293:in `measure''
c:/ruby/lib/ruby/1.8/benchmark.rb:307:in
>>>>> `realtime''
>>>>> c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
>>>>> action_controller/
>>>>> benchmarking.rb:26:in `benchmark''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> actionpack-2.0.2/lib/action_view/partials.rb:116:in  
>>>>> `render_partial''
>>>>>
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
>>>>> base.rb:352:in `render''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> actionpack-2.0.2/lib/action_view/base.rb:637:in
`send'' c:/ruby/
>>>>> lib/
>>>>>
ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/base.rb:637:in
>>>>> `compile_and_render_template''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> actionpack-2.0.2/lib/action_view/base.rb:365:in
`render_template''
>>>>> c:/
>>>>>
ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_view/
>>>>> base.rb:
>>>>> 316:in `render_file''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> actionpack-2.0.2/
>>>>> lib/action_controller/layout.rb:268:in
`render_without_benchmark''
>>>>> c:/
>>>>> ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ 
>>>>> action_controller/
>>>>> benchmarking.rb:51:in `render''
c:/ruby/lib/ruby/1.8/benchmark.rb:
>>>>> 293:in `measure''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
>>>>> lib/
>>>>> action_controller/benchmarking.rb:51:in `render''
c:/ruby/lib/ruby/
>>>>> gems/
>>>>>
1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1153:in
>>>>> `default_render''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
>>>>> lib/
>>>>> action_controller/base.rb:1159:in
`perform_action_without_filters''
>>>>> c:/
>>>>> ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ 
>>>>> action_controller/
>>>>> filters.rb:697:in `call_filters''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> actionpack-2.0.2/lib/action_controller/filters.rb:689:in
>>>>> `perform_action_without_benchmark''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>>
actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in
>>>>> `perform_action_without_rescue''
c:/ruby/lib/ruby/1.8/benchmark.rb:
>>>>> 293:in `measure''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
>>>>> lib/
>>>>> action_controller/benchmarking.rb:68:in
>>>>> `perform_action_without_rescue''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> actionpack-2.0.2/lib/action_controller/rescue.rb:199:in
>>>>> `perform_action_without_caching''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> actionpack-2.0.2/lib/action_controller/caching.rb:678:in
>>>>> `perform_action'' c:/ruby/lib/ruby/gems/1.8/gems/ 
>>>>> activerecord-2.0.2/
>>>>> lib/
>>>>>
active_record/connection_adapters/abstract/query_cache.rb:33:in
>>>>> `cache''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
>>>>> active_record/query_cache.rb:8:in `cache''
c:/ruby/lib/ruby/gems/
>>>>> 1.8/
>>>>>
gems/actionpack-2.0.2/lib/action_controller/caching.rb:677:in
>>>>> `perform_action''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
>>>>> lib/
>>>>> action_controller/base.rb:524:in `send''
c:/ruby/lib/ruby/gems/1.8/
>>>>> gems/
>>>>> actionpack-2.0.2/lib/action_controller/base.rb:524:in
>>>>> `process_without_filters''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> actionpack-2.0.2/lib/action_controller/filters.rb:685:in
>>>>> `process_without_session_management_support''
c:/ruby/lib/ruby/
>>>>> gems/
>>>>> 1.8/
>>>>>
gems/actionpack-2.0.2/lib/action_controller/session_management.rb:
>>>>> 123:in `process''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
>>>>> lib/
>>>>> action_controller/base.rb:388:in `process''
c:/ruby/lib/ruby/gems/
>>>>> 1.8/
>>>>>
gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:171:in
>>>>> `handle_request''
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/
>>>>> lib/
>>>>> action_controller/dispatcher.rb:115:in `dispatch''
c:/ruby/lib/
>>>>> ruby/
>>>>> gems/1.8/gems/actionpack-2.0.2/lib/action_controller/ 
>>>>> dispatcher.rb:
>>>>> 126:in `dispatch_cgi''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> actionpack-2.0.2/
>>>>> lib/action_controller/dispatcher.rb:9:in
`dispatch'' c:/ruby/lib/
>>>>> ruby/
>>>>> gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in
>>>>> `handle_dispatch''
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/
>>>>> webrick_server.rb:78:in `service''
c:/ruby/lib/ruby/1.8/webrick/
>>>>> httpserver.rb:104:in `service''
c:/ruby/lib/ruby/1.8/webrick/
>>>>> httpserver.rb:65:in `run''
c:/ruby/lib/ruby/1.8/webrick/server.rb:
>>>>> 173:in `start_thread''
c:/ruby/lib/ruby/1.8/webrick/server.rb:
>>>>> 162:in
>>>>> `start''
c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in
>>>>> `start_thread''
>>>>> c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in
`start'' c:/ruby/lib/
>>>>> ruby/
>>>>> 1.8/webrick/server.rb:92:in `each''
c:/ruby/lib/ruby/1.8/webrick/
>>>>> server.rb:92:in `start''
c:/ruby/lib/ruby/1.8/webrick/server.rb:
>>>>> 23:in
>>>>> `start''
c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in `start'' c:/
>>>>> ruby/
>>>>>
lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in
>>>>> `dispatch''
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/
>>>>> commands/
>>>>> servers/webrick.rb:66
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/
>>>>> custom_require.rb:27:in `gem_original_require''
c:/ruby/lib/ruby/
>>>>> site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'' c:/ruby/
>>>>> lib/
>>>>> ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/
>>>>> dependencies.rb:496:in `require''
c:/ruby/lib/ruby/gems/1.8/gems/
>>>>>
activesupport-2.0.2/lib/active_support/dependencies.rb:342:in
>>>>> `new_constants_in'' c:/ruby/lib/ruby/gems/1.8/gems/
>>>>> activesupport-2.0.2/
>>>>> lib/active_support/dependencies.rb:496:in
`require'' c:/ruby/lib/
>>>>> ruby/
>>>>> gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39
c:/ruby/lib/
>>>>> ruby/
>>>>> site_ruby/1.8/rubygems/custom_require.rb:27:in
>>>>> `gem_original_require''
>>>>>
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
>>>>> `require'' script/server:3
>>
>> ...
>>
>> read more >>- Hide quoted text -
>>
>> - Show quoted text -
> >

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Rails - Mar 2008 - the :id symbol

the :id symbol

Re: the :id symbol

Re: the :id symbol

Re: the :id symbol

Re: the :id symbol

Re: the :id symbol

Re: the :id symbol

Re: the :id symbol

Re: the :id symbol

Re: the :id symbol