hi all
im following the tutorial in the book “agile development with rails”
as soon as i get to the point where u first add rails generated
validation i get a syntax error every time:
app/models/product.rb:1: syntax error
class Product < ActiveRecord::Base
validates_presence_of :title, :description, :image_url
end
what ive done is added:
“validates_presence_of :title, :description, :image_url”
to:
“class Product < ActiveRecord::Base
end”
to get:
“class Product < ActiveRecord::Base
validates_presence_of :title, :description, :image_url
end”
which immediately generates a syntax error in “http://localhost:3000/
admin”
when i then remove the line to return the page to its original state,
i get another syntax error?
as shown here (PLEASE HELP!!):
"
SyntaxError in AdminController#index
app/models/product.rb:1: syntax error
class Product < ActiveRecord::Base
end
RAILS_ROOT: script/…/config/…
Application Trace | Framework Trace | Full Trace
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:204:in load_without_new_constant_marking' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:204:in load_file’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:203:in new_constants_in' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:203:in load_file’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:95:in require_or_load' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:249:in load_missing_constant’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:453:in const_missing' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:465:in const_missing’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
inflector.rb:251:in module_eval' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ inflector.rb:251:in module_eval’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
inflector.rb:251:in constantize' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ core_ext/string/inflections.rb:148:in constantize’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
pagination.rb:195:in paginator_and_collection_for' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ pagination.rb:130:in paginate’
app/controllers/admin_controller.rb:12:in list' app/controllers/admin_controller.rb:3:in index’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:204:in load_without_new_constant_marking' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:204:in load_file’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:203:in new_constants_in' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:203:in load_file’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:95:in require_or_load' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:249:in load_missing_constant’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:453:in const_missing' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:465:in const_missing’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
inflector.rb:251:in module_eval' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ inflector.rb:251:in module_eval’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
inflector.rb:251:in constantize' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ core_ext/string/inflections.rb:148:in constantize’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
pagination.rb:195:in paginator_and_collection_for' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ pagination.rb:130:in paginate’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
base.rb:1095:in send' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ base.rb:1095:in perform_action_without_filters’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
filters.rb:632:in call_filter' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ filters.rb:634:in call_filter’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
filters.rb:619:in perform_action_without_benchmark' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ benchmarking.rb:66:in perform_action_without_rescue’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
benchmarking.rb:66:in measure' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ benchmarking.rb:66:in perform_action_without_rescue’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
rescue.rb:83:in perform_action' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ base.rb:430:in send’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
base.rb:430:in process_without_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ filters.rb:624:in process_without_session_management_support’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
session_management.rb:114:in process' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ base.rb:330:in process’
/usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/dispatcher.rb:41:in
dispatch' /usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/webrick_server.rb:113:in handle_dispatch’
/usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/webrick_server.rb:79:in
service' /usr/lib/ruby/1.8/webrick/httpserver.rb:104:in service’
/usr/lib/ruby/1.8/webrick/httpserver.rb:65:in run' /usr/lib/ruby/1.8/webrick/server.rb:155:in start_thread’
/usr/lib/ruby/1.8/webrick/server.rb:144:in start' /usr/lib/ruby/1.8/webrick/server.rb:144:in start_thread’
/usr/lib/ruby/1.8/webrick/server.rb:94:in start' /usr/lib/ruby/1.8/webrick/server.rb:89:in each’
/usr/lib/ruby/1.8/webrick/server.rb:89:in start' /usr/lib/ruby/1.8/webrick/server.rb:79:in start’
/usr/lib/ruby/1.8/webrick/server.rb:79:in start' /usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/webrick_server.rb:63:in dispatch’
/usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/commands/servers/
webrick.rb:59
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
gem_original_require' /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in require’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:496:in require' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:496:in new_constants_in’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:496:in require' /usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/commands/server.rb:39 /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in gem_original_require’
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in require' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:496:in require’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:496:in new_constants_in' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:496:in require’
script/server:3
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:204:in load_without_new_constant_marking' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:204:in load_file’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:203:in new_constants_in' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:203:in load_file’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:95:in require_or_load' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:249:in load_missing_constant’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:453:in const_missing' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:465:in const_missing’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
inflector.rb:251:in module_eval' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ inflector.rb:251:in module_eval’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
inflector.rb:251:in constantize' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ core_ext/string/inflections.rb:148:in constantize’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
pagination.rb:195:in paginator_and_collection_for' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ pagination.rb:130:in paginate’
app/controllers/admin_controller.rb:12:in list' app/controllers/admin_controller.rb:3:in index’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
base.rb:1095:in send' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ base.rb:1095:in perform_action_without_filters’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
filters.rb:632:in call_filter' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ filters.rb:634:in call_filter’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
filters.rb:619:in perform_action_without_benchmark' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ benchmarking.rb:66:in perform_action_without_rescue’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
benchmarking.rb:66:in measure' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ benchmarking.rb:66:in perform_action_without_rescue’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
rescue.rb:83:in perform_action' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ base.rb:430:in send’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
base.rb:430:in process_without_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ filters.rb:624:in process_without_session_management_support’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/
session_management.rb:114:in process' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/ base.rb:330:in process’
/usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/dispatcher.rb:41:in
dispatch' /usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/webrick_server.rb:113:in handle_dispatch’
/usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/webrick_server.rb:79:in
service' /usr/lib/ruby/1.8/webrick/httpserver.rb:104:in service’
/usr/lib/ruby/1.8/webrick/httpserver.rb:65:in run' /usr/lib/ruby/1.8/webrick/server.rb:155:in start_thread’
/usr/lib/ruby/1.8/webrick/server.rb:144:in start' /usr/lib/ruby/1.8/webrick/server.rb:144:in start_thread’
/usr/lib/ruby/1.8/webrick/server.rb:94:in start' /usr/lib/ruby/1.8/webrick/server.rb:89:in each’
/usr/lib/ruby/1.8/webrick/server.rb:89:in start' /usr/lib/ruby/1.8/webrick/server.rb:79:in start’
/usr/lib/ruby/1.8/webrick/server.rb:79:in start' /usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/webrick_server.rb:63:in dispatch’
/usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/commands/servers/
webrick.rb:59
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
gem_original_require' /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in require’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:496:in require' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:496:in new_constants_in’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:496:in require' /usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/commands/server.rb:39 /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in gem_original_require’
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in require' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:496:in require’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:496:in new_constants_in' /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/ dependencies.rb:496:in require’
script/server:3
Request
Parameters: None
Show session dump
flash: !ruby/hash:ActionController::Flash::FlashHash {}
Response
Headers: {“cookie”=>[], “Cache-Control”=>“no-cache”}"
PLEASE HELP!!