View and Controller not working

Hello,

I created a controller named animals and a .rhtml file called hello.

There is nothing in the controller, but there is "hello, world!" in
the .rhtml.

I booted up webbrick and typed "http://localhost:3000/animals/hello"
and it should have displayed "hello, world!" instead it gave me this
error.

MissingSourceFile in AnimalsController#hello

no such file to load -- sqlite3

Any ideas?

RAILS_ROOT: C:/InstantRails/rails_apps/view_demo
Application Trace | Framework Trace | Full Trace

C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require'
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependencies.rb:153:in `require'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependencies.rb:521:in `new_constants_in'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependencies.rb:153:in `require'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
core_ext/kernel/requires.rb:7:in `require_library_or_gem'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
core_ext/kernel/reporting.rb:11:in `silence_warnings'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
core_ext/kernel/requires.rb:5:in `require_library_or_gem'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/sqlite3_adapter.rb:10:in `sqlite3_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:223:in `send'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:223:in
`new_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:245:in
`checkout_new_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:188:in `checkout'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:184:in `loop'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:184:in `checkout'
C:/Ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:183:in `checkout'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:98:in `connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:326:in
`retrieve_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:121:in
`retrieve_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:113:in
`connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
query_cache.rb:8:in `cache'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
caching/sql_cache.rb:12:in `perform_action'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
base.rb:524:in `send'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
base.rb:524:in `process_without_filters'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
filters.rb:606:in `process_without_session_management_support'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
session_management.rb:134:in `process'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
base.rb:392:in `process'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:183:in `handle_request'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:110:in `dispatch_unlocked'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:123:in `dispatch'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:122:in `synchronize'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:122:in `dispatch'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:132:in `dispatch_cgi'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:39:in `dispatch'
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/webrick_server.rb:
103:in `handle_dispatch'
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/webrick_server.rb:74: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-2.2.2/lib/webrick_server.rb:60:in
`dispatch'
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/commands/servers/
webrick.rb:66
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require'
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependencies.rb:153:in `require'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependencies.rb:521:in `new_constants_in'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependencies.rb:153:in `require'
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/commands/server.rb:49
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require'
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require'
script/server:3

C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require'
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependencies.rb:153:in `require'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependencies.rb:521:in `new_constants_in'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependencies.rb:153:in `require'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
core_ext/kernel/requires.rb:7:in `require_library_or_gem'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
core_ext/kernel/reporting.rb:11:in `silence_warnings'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
core_ext/kernel/requires.rb:5:in `require_library_or_gem'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/sqlite3_adapter.rb:10:in `sqlite3_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:223:in `send'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:223:in
`new_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:245:in
`checkout_new_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:188:in `checkout'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:184:in `loop'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:184:in `checkout'
C:/Ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:183:in `checkout'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:98:in `connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_pool.rb:326:in
`retrieve_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:121:in
`retrieve_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:113:in
`connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
query_cache.rb:8:in `cache'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
caching/sql_cache.rb:12:in `perform_action'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
base.rb:524:in `send'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
base.rb:524:in `process_without_filters'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
filters.rb:606:in `process_without_session_management_support'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
session_management.rb:134:in `process'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
base.rb:392:in `process'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:183:in `handle_request'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:110:in `dispatch_unlocked'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:123:in `dispatch'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:122:in `synchronize'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:122:in `dispatch'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:132:in `dispatch_cgi'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/
dispatcher.rb:39:in `dispatch'
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/webrick_server.rb:
103:in `handle_dispatch'
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/webrick_server.rb:74: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-2.2.2/lib/webrick_server.rb:60:in
`dispatch'
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/commands/servers/
webrick.rb:66
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require'
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependencies.rb:153:in `require'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependencies.rb:521:in `new_constants_in'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependencies.rb:153:in `require'
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/commands/server.rb:49
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require'
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require'
script/server:3

This error occurred while loading the following files:
   sqlite3

Hey there. To create a basic, custom controller action, you need to do
three things:

1) Create a method in the controller. In your case you'd need:
  class AnimalsController < ApplicationController
    def hello
    end
  end

2) Create a view template for the action to render. In your case,
you'd need app/views/animals/hello.html.erb .

3) Create a route to the custom controller action. In your case, you'd
need this in config/routes.rb :
  map.resources :animals, :collection => :hello

Since you're getting started with Rails, I highly recommend reading
through Agile Web Development With Rails:
  http://www.pragprog.com/titles/rails3/

Cheers,
Nick

You have to configure Database in config/database.yml - and install
sqlite or mysql gem (db adapters, according to which db you want to
use).

But its obvious that the application you are building now doesnt
require any database, but rails needs a database connection by
default. So either create a dummy database for rails to connect to,

OR

In config/environment.rb, inside the Rails::Initializer block, add
this line:

config.frameworks -= [ :active_record ]