Hi,
What is a NameError? When I visit the root page of my application, I
get an application error. Upon checking the logs, the stack trace is
below. I have also included my environment.rb and routes.rb files, if
that’s helpful. Any direction you can point me in is most
appreciated.
/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/dependencies.rb:266:in load_missing_constant': uninitialized constant UserObserver (NameError) from /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/ active_support/dependencies.rb:452:in const_missing’
from /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/dependencies.rb:464:in const_missing' from /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/ active_support/inflector.rb:250:in constantize’
from /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/core_ext/string/inflections.rb:148:in constantize' from /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active_record/observer.rb:38:in instantiate_observers’
from /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/observer.rb:36:in each' from /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active_record/observer.rb:36:in instantiate_observers’
from /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb:
212:in load_observers' from /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb: 108:in process’
from /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb:
43:in send' from /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb: 43:in run’
from ./…/config/environment.rb:13
from dispatch.cgi:3:in `require’
from dispatch.cgi:3
===================start
environment.rb=================================
Be sure to restart your web server when you modify this file.
Uncomment below to force Rails into production mode when
you don’t control web/app server and can’t set it the proper way
ENV[‘RAILS_ENV’] ||= ‘production’
Specifies gem version of Rails to use when vendor/rails is not
present
RAILS_GEM_VERSION = ‘1.2.3’ unless defined? RAILS_GEM_VERSION
Bootstrap the Rails environment, frameworks, and default
configuration
require File.join(File.dirname(FILE), ‘boot’)
Rails::Initializer.run do |config|
Settings in config/environments/* take precedence over those
specified here
Skip frameworks you’re not going to use (only works if using
vendor/rails)
config.frameworks -= [ :action_web_service, :action_mailer ]
Only load the plugins named here, by default all plugins in vendor/
plugins are loaded
config.plugins = %W( exception_notification ssl_requirement )
Add additional load paths for your own custom dirs
config.load_paths += %W( #{RAILS_ROOT}/extras )
Force all environments to use the same logger level
(by default production uses :info, the others :debug)
config.log_level = :debug
Use the database for sessions instead of the file system
(create the session table with ‘rake db:sessions:create’)
config.action_controller.session_store = :active_record_store
Use SQL instead of Active Record’s schema dumper when creating the
test database.
This is necessary if your schema can’t be completely dumped by the
schema dumper,
like if you have constraints or database-specific column types
config.active_record.schema_format = :sql
Activate observers that should always be running
config.active_record.observers = :cacher, :garbage_collector
Make Active Record use UTC-base instead of local time
config.active_record.default_timezone = :utc
Add new inflection rules using the following format
(all these examples are active by default):
Inflector.inflections do |inflect|
inflect.plural /^(ox)$/i, ‘\1en’
inflect.singular /^(ox)en/i, ‘\1’
inflect.irregular ‘person’, ‘people’
inflect.uncountable %w( fish sheep )
end
See Rails::Configuration for more options
end
Add new mime types for use in respond_to blocks:
Mime::Type.register “text/richtext”, :rtf
Mime::Type.register “application/x-mobile”, :mobile
Include your application configuration below
ActionMailer::Base.delivery_method = :smtp
ActionMailer::Base.smtp_settings = {
:address => “mail.mydomain.us”,
:port => 25,
:domain => “mydomain.us”,
:user_name => “admin”,
:password => “password”,
:authentication => :login
}
ActionMailer::Base.raise_delivery_errors = true
=====================end
environment.rb================================
===================start routes.rb=================================
ActionController::Routing::Routes.draw do |map|
The priority is based upon order of creation: first created →
highest priority.
Sample of regular route:
map.connect ‘products/:id’, :controller => ‘catalog’, :action =>
‘view’
Keep in mind you can assign values other than :controller
and :action
Sample of named route:
map.purchase ‘products/:id/purchase’, :controller =>
‘catalog’, :action => ‘purchase’
This route can be invoked with purchase_url(:id => product.id)
You can have the root of your site routed by hooking up ‘’
– just remember to delete public/index.html.
map.connect ‘’, :controller => ‘application’, :action => ‘index’
Allow downloading Web Service WSDL as a file with an extension
instead of a file named ‘wsdl’
map.connect ‘:controller/service.wsdl’, :action => ‘wsdl’
Install the default route as the lowest priority.
map.connect ‘:controller/:action/:id.:format’
map.connect ‘:controller/:action/:id’
map.page ‘:permalink’, :controller => ‘page’, :action => ‘show’
map.signup ‘easy_order/signup’, :controller => ‘page’, :action =>
‘signup’
end
=====================end routes.rb================================