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: "7d0ecd9a70241cf4c9e7561ebfcb097c"
Connection: Keep-Alive
Content-Type: text/html; charset=utf-8
Date: Fri, 25 May 2012 01:20:07 GMT
Server: WEBrick/1.3.1 (Ruby/1.8.7/2011-06-30)
X-Request-Id: e2ee2e5196b53d7c5b4922ff02311596
X-Runtime: 0.341941
Content-Length: 0
Cache-Control: max-age=0, private, must-revalidate
Set-Cookie: _depot_session=BAh7CCIQX2NzcmZfdG9rZW4iMTlNc1dyR2ZlMEN2MEFUTkV0UmhRQnRtdSt6M3FCZFdiTDF6ZHV4QnNXak09Ig9zZXNzaW9uX2lkIiU0MTc3ODc0NTE2ZmIyMTExZTVlYTBmMTE3NjBhNDA1OCIMY2FydF9pZGkQ--43aabb5fc69b35e20b67344b1ffec85e38b812a6; 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: "b25c74035e32103a89a624a4ae95d215"
Last-Modified: Fri, 25 May 2012 01:11:21 GMT
Connection: Keep-Alive
Content-Type: text/html; charset=utf-8
Date: Fri, 25 May 2012 01:20:08 GMT
Server: WEBrick/1.3.1 (Ruby/1.8.7/2011-06-30)
X-Request-Id: aa627edf905898be300a8f6b009001c1
X-Runtime: 0.378531
Content-Length: 0
Cache-Control: max-age=600, public
Set-Cookie: _depot_session=BAh7CCIQX2NzcmZfdG9rZW4iMWhoSDFTaEZCSUdDNFBwMUloOHJRMEphaGdZNndNQWUxcHlhWmplcUU4SGs9Ig9zZXNzaW9uX2lkIiUxODE4ZTllZjI0ZDU0NTI2M2NkNGE2NTI5N2U0YmJkMyIMY2FydF9pZGkR--47ab47c3aa748f7ab98d0bd7a58b905071714827; path=/; HttpOnly
curl --silent --head http://localhost:3000/ -H 'If-None-Match: "b25c74035e32103a89a624a4ae95d215"'
HTTP/1.1 304 Not Modified
X-Ua-Compatible: IE=Edge
Etag: "b25c74035e32103a89a624a4ae95d215"
Last-Modified: Fri, 25 May 2012 01:11:21 GMT
Date: Fri, 25 May 2012 01:20:08 GMT
Server: WEBrick/1.3.1 (Ruby/1.8.7/2011-06-30)
X-Request-Id: 5a85310c665c797f2a9bd915faedb7e4
X-Runtime: 0.112129
Cache-Control: max-age=600, public
Set-Cookie: _depot_session=BAh7ByIPc2Vzc2lvbl9pZCIlMWIzNzU2YWVkNDBmY2M2ZjcwNzRiZTM0MWFlYWRhOGMiDGNhcnRfaWRpEw%3D%3D--55e7e328e5ee8cb66934ac59a06f0d6f06a8fad1; path=/; HttpOnly
curl --silent --head http://localhost:3000/ -H 'If-Modified-Since: Fri, 25 May 2012 01:11:21 GMT'
HTTP/1.1 304 Not Modified
X-Ua-Compatible: IE=Edge
Etag: "b25c74035e32103a89a624a4ae95d215"
Last-Modified: Fri, 25 May 2012 01:11:21 GMT
Date: Fri, 25 May 2012 01:20:08 GMT
Server: WEBrick/1.3.1 (Ruby/1.8.7/2011-06-30)
X-Request-Id: 60846a60ef5eec3350967c1a5c84774e
X-Runtime: 0.113239
Cache-Control: max-age=600, public
Set-Cookie: _depot_session=BAh7ByIPc2Vzc2lvbl9pZCIlNjY3Mzc5NDlkYmI3MzRmMzcwNTdhNDg2NGM3ZjhmNDIiDGNhcnRfaWRpFA%3D%3D--995cb9998203eec1cb9449b6bb073320f9691de0; 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
# Raise exception on mass assignment protection for Active Record models
config.active_record.mass_assignment_sanitizer = :strict
# Log the query plan for queries taking more than this (works
# with SQLite, MySQL, and PostgreSQL)
config.active_record.auto_explain_threshold_in_seconds = 0.5
# 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: "b25c74035e32103a89a624a4ae95d215"
Last-Modified: Fri, 25 May 2012 01:11:21 GMT
Connection: Keep-Alive
Content-Type: text/html; charset=utf-8
X-Rack-Cache: fresh
X-Content-Digest: b0b24a50986ba8a96596730b2e18fb0cb7c9abf1
Server: WEBrick/1.3.1 (Ruby/1.8.7/2011-06-30)
X-Request-Id: 7d623335f7b43da113493976d81681a9
Date: Fri, 25 May 2012 01:20:18 GMT
X-Runtime: 1.077670
Content-Length: 6641
Cache-Control: max-age=600, public
Age: 0
curl --silent --head http://localhost:3000/ -H 'If-None-Match: "b25c74035e32103a89a624a4ae95d215"'
HTTP/1.1 304 Not Modified
X-Ua-Compatible: IE=Edge
Etag: "b25c74035e32103a89a624a4ae95d215"
X-Rack-Cache: fresh
X-Content-Digest: b0b24a50986ba8a96596730b2e18fb0cb7c9abf1
Server: WEBrick/1.3.1 (Ruby/1.8.7/2011-06-30)
X-Request-Id: 7d623335f7b43da113493976d81681a9
Date: Fri, 25 May 2012 01:20:18 GMT
X-Runtime: 1.077670
Cache-Control: max-age=600, public
Age: 0