I went through a tutorial at
Radar – O’Reilly to get
started with RoR. I really like the idea of the scaffold construct, but
I can’t seem to get it to work the way it was described in the tutorial.
I’ve got a mysql database that is properly configured, and a table
called ‘quotes’ with a column called ‘quote’, and an auto incrementing
primary key of ‘id’. Below is my controller code and model, and the
error I get. Anyone have any idea why this doesn’t just work? Btw,
I’ve got Ruby 1.8.4 (2006-04-14) [i386-mswin32], and I can’t figure out
what version of Rails (or even RubyGems…I used this last night to
install Rails).
In app/controllers:
class QuoteController < ApplicationController
scaffold :quote
end
In app/models:
class Quote < ActiveRecord::Base
end
Here is the error I got:
ArgumentError in Quote#index
Showing
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/templates/scaffolds/list.rhtml
where line #13 raised:
wrong number of arguments (0 for 1)
Extracted source (around line #13):
10: <% for entry in instance_variable_get(“@#{@scaffold_plural_name}”)
%>
11:
12: <% for column in @scaffold_class.content_columns %>
13: <%= entry.send(column.name) %>
14: <% end %>
15: <%= link_to “Show”, :action => “show#{@scaffold_suffix}”,
:id => entry %>
16: <%= link_to “Edit”, :action => “edit#{@scaffold_suffix}”,
:id => entry %>
RAILS_ROOT: ./script/…/config/…
Application Trace | Framework Trace | Full Trace
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/templates/scaffolds/list.rhtml:13:in
quote' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/templates/scaffolds/list.rhtml:13:in
_run_rhtml_c__dev_ruby_lib_ruby_gems_1468_gems_actionpack_14612465_lib_action_controller_templates_scaffolds_list’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/templates/scaffolds/list.rhtml:12:in
_run_rhtml_c__dev_ruby_lib_ruby_gems_1468_gems_actionpack_14612465_lib_action_controller_templates_scaffolds_list' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/templates/scaffolds/list.rhtml:10:in
_run_rhtml_c__dev_ruby_lib_ruby_gems_1468_gems_actionpack_14612465_lib_action_controller_templates_scaffolds_list’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:316:in
compile_and_render_template' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:292:in
render_template’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:251:in
render_file' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/scaffolding.rb:168:in
render_scaffold’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/scaffolding.rb:110:in
list' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/scaffolding.rb:97:in
index’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:941:in
perform_action_without_filters' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/filters.rb:368:in
perform_action_without_benchmark’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmarking.rb:69:in
perform_action_without_rescue' c:/dev/ruby/lib/ruby/1.8/benchmark.rb:293:in
measure’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmarking.rb:69:in
perform_action_without_rescue' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/rescue.rb:82:in
perform_action’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:408:in
process_without_filters' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/filters.rb:377:in
process_without_session_management_support’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/session_management.rb:117:in
process' c:/dev/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/dispatcher.rb:38:in
dispatch’
c:/dev/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:115:in
handle_dispatch' c:/dev/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:81:in
service’
c:/dev/ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in service' c:/dev/ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in
run’
c:/dev/ruby/lib/ruby/1.8/webrick/server.rb:173:in start_thread' c:/dev/ruby/lib/ruby/1.8/webrick/server.rb:162:in
start_thread’
c:/dev/ruby/lib/ruby/1.8/webrick/server.rb:95:in start' c:/dev/ruby/lib/ruby/1.8/webrick/server.rb:92:in
start’
c:/dev/ruby/lib/ruby/1.8/webrick/server.rb:23:in start' c:/dev/ruby/lib/ruby/1.8/webrick/server.rb:82:in
start’
c:/dev/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:67:in
dispatch' c:/dev/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/commands/servers/webrick.rb:59 c:/dev/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
require’
c:/dev/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:in
require' c:/dev/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/commands/server.rb:30 c:/dev/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
require’
c:/dev/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:in
`require’
script/server:3
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/templates/scaffolds/list.rhtml:13:in
quote' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/templates/scaffolds/list.rhtml:13:in
_run_rhtml_c__dev_ruby_lib_ruby_gems_1468_gems_actionpack_14612465_lib_action_controller_templates_scaffolds_list’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/templates/scaffolds/list.rhtml:12:in
_run_rhtml_c__dev_ruby_lib_ruby_gems_1468_gems_actionpack_14612465_lib_action_controller_templates_scaffolds_list' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/templates/scaffolds/list.rhtml:10:in
_run_rhtml_c__dev_ruby_lib_ruby_gems_1468_gems_actionpack_14612465_lib_action_controller_templates_scaffolds_list’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:316:in
compile_and_render_template' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:292:in
render_template’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:251:in
render_file' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/scaffolding.rb:168:in
render_scaffold’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/scaffolding.rb:110:in
list' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/scaffolding.rb:97:in
index’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:941:in
perform_action_without_filters' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/filters.rb:368:in
perform_action_without_benchmark’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmarking.rb:69:in
perform_action_without_rescue' c:/dev/ruby/lib/ruby/1.8/benchmark.rb:293:in
measure’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmarking.rb:69:in
perform_action_without_rescue' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/rescue.rb:82:in
perform_action’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:408:in
process_without_filters' c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/filters.rb:377:in
process_without_session_management_support’
c:/dev/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/session_management.rb:117:in
process' c:/dev/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/dispatcher.rb:38:in
dispatch’
c:/dev/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:115:in
handle_dispatch' c:/dev/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:81:in
service’
c:/dev/ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in service' c:/dev/ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in
run’
c:/dev/ruby/lib/ruby/1.8/webrick/server.rb:173:in start_thread' c:/dev/ruby/lib/ruby/1.8/webrick/server.rb:162:in
start_thread’
c:/dev/ruby/lib/ruby/1.8/webrick/server.rb:95:in start' c:/dev/ruby/lib/ruby/1.8/webrick/server.rb:92:in
start’
c:/dev/ruby/lib/ruby/1.8/webrick/server.rb:23:in start' c:/dev/ruby/lib/ruby/1.8/webrick/server.rb:82:in
start’
c:/dev/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:67:in
dispatch' c:/dev/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/commands/servers/webrick.rb:59 c:/dev/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
require’
c:/dev/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:in
require' c:/dev/ruby/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/commands/server.rb:30 c:/dev/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
require’
c:/dev/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:in
`require’
script/server:3
Request
Parameters: None
Show session dump
flash: !map:ActionController::Flash::FlashHash {}
Response
Headers: {“cookie”=>[], “Cache-Control”=>“no-cache”}