Rake task on rails 3 - config not found - ruby-on-rails

Question

Releated to this: Rake on Rails 3 problem
I'm trying to copy a rake task working under rails 2, into a rails 3 app.
The rake task is the following:
namespace :cached_assets do
desc "Regenerate aggregate/cached files"
task :regenerate => :environment do
include ActionView::Helpers::TagHelper
include ActionView::Helpers::UrlHelper
include ActionView::Helpers::AssetTagHelper
stylesheet_link_tag :all, :cache => CACHE_CSS_JS
javascript_include_tag "a.js", "b.js",
"c.js", :defaults, :cache => CACHE_CSS_JS
javascript_include_tag "q.js", "w.js",
"e.js", :cache => 'abc'
end
end
On Rails 2 it cache the assets correctly, on rails 3 I have the following error:
rake cached_assets:regenerate --trace
(in /var/www/apps/****)
** Invoke cached_assets:regenerate (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute cached_assets:regenerate
rake aborted!
undefined local variable or method `config' for #<Object:0xa86290>
/opt/ruby-enterprise/lib/ruby/gems/1.8/gems/actionpack-3.0.3/lib/action_view/helpers/asset_tag_helper.rb:498:in `stylesheet_link_tag'
/var/www/apps/****/lib/tasks/cached_assets.rake:10
/opt/ruby-enterprise/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call'
/opt/ruby-enterprise/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute'
Looking at the definition of stylesheet_link_tag I see:
def stylesheet_link_tag(*sources)
options = sources.extract_options!.stringify_keys
concat = options.delete("concat")
cache = concat || options.delete("cache")
recursive = options.delete("recursive")
if concat || (config.perform_caching && cache)
joined_stylesheet_name = (cache == true ? "all" : cache) + ".css"
joined_stylesheet_path = File.join(joined_stylesheet_name ......
..... ....
My config/application.rb:
require File.expand_path('../boot', __FILE__)
require 'rails/all'
# If you have a Gemfile, require the gems listed there, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(:default, Rails.env) if defined?(Bundler)
module ****
class Application < Rails::Application
# Settings in config/environments/* take precedence over those specified here.
# Application configuration should go into files in config/initializers
# -- all .rb files in that directory are automatically loaded.
# Custom directories with classes and modules you want to be autoloadable.
# config.autoload_paths += %W(#{config.root}/extras)
# Only load the plugins named here, in the order given (default is alphabetical).
# :all can be used as a placeholder for all plugins not explicitly named.
# config.plugins = [ :exception_notification, :ssl_requirement, :all ]
# Activate observers that should always be running.
# config.active_record.observers = :cacher, :garbage_collector, :forum_observer
# Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
# Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
# config.time_zone = 'Central Time (US & Canada)'
# The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
# config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
# config.i18n.default_locale = :de
# JavaScript files you want as :defaults (application.js is always included).
# config.action_view.javascript_expansions[:defaults] = %w(jquery rails)
# Configure the default encoding used in templates for Ruby 1.9.
config.encoding = "utf-8"
# Configure sensitive parameters which will be filtered from the log file.
config.filter_parameters += [:password]
config.time_zone = 'UTC'
# The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
# config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}')]
# config.i18n.default_locale = :de
# use memcache
config.cache_store = :mem_cache_store, 'localhost:11211', { :namespace => 'nar_' }
config.after_initialize do
require 'lib/core_extensions.rb'
end
end
end
My config/environments/development.rb:
****::Application.configure do
# Settings specified here will take precedence over those in config/environment.rb
# In the development environment your application's code is reloaded on
# every request. This slows down response time but is perfect for development
# since you don't have to restart the webserver when you make code changes.
config.cache_classes = false
# Log error messages when you accidentally call methods on nil.
config.whiny_nils = true
# Show full error reports and disable caching
config.action_controller.consider_all_requests_local = true
config.action_view.debug_rjs = true
config.action_controller.perform_caching = false
# EMAIL -> see also initializers/emailer_initializers.rb and /config/email.yml !!!!!!!!!!!!
EMAIL_ENABLED = false
config.action_mailer.raise_delivery_errors = true
MAIL_FROM = '****'
RCPT_TO_DEV = '****'
ENV['RAILS_ASSET_ID'] = '100'
PRODUCTION_DOMAIN_NAME = "*****"
#CSS CACHING
CACHE_CSS_JS = false
# Print deprecation notices to the Rails logger
config.active_support.deprecation = :log
# Only use best-standards-support built into browsers
config.action_dispatch.best_standards_support = :builtin
end

Answer 1

I had the same problem and found a solution here: http://railsforum.com/viewtopic.php?id=42282
Just prefix
stylesheet_link_tag
and
javascript_include_tag
with
ApplicationController.helpers.
then you shouldn't even have to include the ActionView helpers.