24.3 Active Resources 21.2 Form Helpers
curl --silent --head http://localhost:3000/
HTTP/1.1 200 OK
X-Ua-Compatible: IE=Edge
Etag: "d07ce5afdc6689f3cd1d7bcc907abb04"
Connection: Keep-Alive
Content-Type: text/html; charset=utf-8
Date: Fri, 25 May 2012 04:20:55 GMT
Server: WEBrick/1.3.1 (Ruby/1.8.7/2011-06-30)
X-Runtime: 0.409272
Content-Length: 0
Cache-Control: max-age=0, private, must-revalidate
Set-Cookie: _depot_session=BAh7CCIQX2NzcmZfdG9rZW4iMXpEK0hBS1VuSXVFUGVWdThnZjJNbVFjMG1FYTBHVUNuSkIza0lhekVORDg9Ig9zZXNzaW9uX2lkIiVlMzdmNzUzZDcyYTAwNDY5MDBhNDdjOGJlNjE3MTZlMiIMY2FydF9pZGkQ--db4c87dfeefbdd3fcbc1d14158a96e2827e39114; path=/; HttpOnly
add a method to return the latest product
edit app/models/product.rb
set ETAG and LastModified headers on the response
edit app/controllers/store_controller.rb
class StoreController < ApplicationController
skip_before_filter :authorize
def index
if params[:set_locale]
redirect_to store_path(:locale => params[:set_locale])
else
@products = Product.order(:title)
@cart = current_cart
end
latest = Product.latest
fresh_when :etag => latest, :last_modified => latest.created_at.utc
expires_in 10.minutes, :public => true
end
end
curl --silent --head http://localhost:3000/
HTTP/1.1 200 OK
X-Ua-Compatible: IE=Edge
Etag: "9c33c1dc0e4fc92fdf667d1ac3be7db7"
Last-Modified: Fri, 25 May 2012 04:11:30 GMT
Connection: Keep-Alive
Content-Type: text/html; charset=utf-8
Date: Fri, 25 May 2012 04:20:56 GMT
Server: WEBrick/1.3.1 (Ruby/1.8.7/2011-06-30)
X-Runtime: 0.276837
Content-Length: 0
Cache-Control: max-age=600, public
Set-Cookie: _depot_session=BAh7CCIQX2NzcmZfdG9rZW4iMW9mMkJ5SjZSeDR5dnphWVVqTkxlcmIrV3ZtT3hUYmplTGtIeEpzcWhrZ2s9Ig9zZXNzaW9uX2lkIiU1MjlkMmUzNDE1ZjRjODU2MzdiMWVjMDM1NmRmM2MzMSIMY2FydF9pZGkR--9c1499886618c0050319e0497bf07172a30fba8f; path=/; HttpOnly
curl --silent --head http://localhost:3000/ -H 'If-None-Match: "9c33c1dc0e4fc92fdf667d1ac3be7db7"'
HTTP/1.1 304 Not Modified
X-Ua-Compatible: IE=Edge
Etag: "9c33c1dc0e4fc92fdf667d1ac3be7db7"
Last-Modified: Fri, 25 May 2012 04:11:30 GMT
Date: Fri, 25 May 2012 04:20:56 GMT
Server: WEBrick/1.3.1 (Ruby/1.8.7/2011-06-30)
X-Runtime: 0.270070
Cache-Control: max-age=600, public
Set-Cookie: _depot_session=BAh7ByIPc2Vzc2lvbl9pZCIlYjIzZjc4NGMyMWNjZWEzYWNjOTZlYzY4NzYzMjUyMTciDGNhcnRfaWRpEw%3D%3D--48fe31d949c6f49708ec9a494bee03772b8158a2; path=/; HttpOnly
curl --silent --head http://localhost:3000/ -H 'If-Modified-Since: Fri, 25 May 2012 04:11:30 GMT'
HTTP/1.1 304 Not Modified
X-Ua-Compatible: IE=Edge
Etag: "9c33c1dc0e4fc92fdf667d1ac3be7db7"
Last-Modified: Fri, 25 May 2012 04:11:30 GMT
Date: Fri, 25 May 2012 04:20:56 GMT
Server: WEBrick/1.3.1 (Ruby/1.8.7/2011-06-30)
X-Runtime: 0.176556
Cache-Control: max-age=600, public
Set-Cookie: _depot_session=BAh7ByIPc2Vzc2lvbl9pZCIlYWU0ZTIyODM0NThmNzkxNjY0NTNhNDg5MmY5OTA3NzAiDGNhcnRfaWRpFA%3D%3D--9dff38789a954b14e9cd4484f5c7d24e9a217b82; path=/; HttpOnly
Turn on caching in development
edit config/environments/development.rb
Depot::Application.configure do
# Settings specified here will take precedence over those in config/application.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 web server 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.consider_all_requests_local = true
config.action_controller.perform_caching = true
# Don't care if the mailer can't send
config.action_mailer.raise_delivery_errors = false
# Don't actually send emails
config.action_mailer.delivery_method = :test
#
# Alternate configuration example, using gmail:
# config.action_mailer.delivery_method = :smtp
# config.action_mailer.smtp_settings = {
# address: "smtp.gmail.com",
# port: 587,
# domain: "domain.of.sender.net",
# authentication: "plain",
# user_name: "dave",
# password: "secret",
# enable_starttls_auto: true
# }
# 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
# Do not compress assets
config.assets.compress = false
# Expands the lines which load the assets
config.assets.debug = true
end
curl --silent --head http://localhost:3000/
HTTP/1.1 200 OK
X-Ua-Compatible: IE=Edge
Etag: "9c33c1dc0e4fc92fdf667d1ac3be7db7"
Last-Modified: Fri, 25 May 2012 04:11:30 GMT
Connection: Keep-Alive
Content-Type: text/html; charset=utf-8
X-Rack-Cache: fresh
X-Content-Digest: f5a59c9a31f65879acda54ba034c7f329cc1d014
Server: WEBrick/1.3.1 (Ruby/1.8.7/2011-06-30)
Date: Fri, 25 May 2012 04:21:07 GMT
X-Runtime: 1.255984
Content-Length: 6641
Cache-Control: max-age=600, public
Age: 0
curl --silent --head http://localhost:3000/ -H 'If-None-Match: "9c33c1dc0e4fc92fdf667d1ac3be7db7"'
HTTP/1.1 304 Not Modified
X-Ua-Compatible: IE=Edge
Etag: "9c33c1dc0e4fc92fdf667d1ac3be7db7"
X-Rack-Cache: fresh
X-Content-Digest: f5a59c9a31f65879acda54ba034c7f329cc1d014
Server: WEBrick/1.3.1 (Ruby/1.8.7/2011-06-30)
Date: Fri, 25 May 2012 04:21:07 GMT
X-Runtime: 1.255984
Cache-Control: max-age=600, public
Age: 0