diff options
Diffstat (limited to 'actionpack/lib/action_view/helpers')
| -rw-r--r-- | actionpack/lib/action_view/helpers/asset_tag_helper.rb | 124 | ||||
| -rw-r--r-- | actionpack/lib/action_view/helpers/date_helper.rb | 10 |
2 files changed, 79 insertions, 55 deletions
diff --git a/actionpack/lib/action_view/helpers/asset_tag_helper.rb b/actionpack/lib/action_view/helpers/asset_tag_helper.rb index 58f8cca6be..f6abea38ed 100644 --- a/actionpack/lib/action_view/helpers/asset_tag_helper.rb +++ b/actionpack/lib/action_view/helpers/asset_tag_helper.rb @@ -6,54 +6,70 @@ module ActionView module Helpers #:nodoc: # This module provides methods for generating HTML that links views to assets such # as images, javascripts, stylesheets, and feeds. These methods do not verify - # the assets exist before linking to them. + # the assets exist before linking to them: + # + # image_tag("rails.png") + # # => <img alt="Rails src="/images/rails.png?1230601161" /> + # stylesheet_link_tag("application") + # # => <link href="/stylesheets/application.css?1232285206" media="screen" rel="stylesheet" type="text/css" /> # # === Using asset hosts + # # By default, Rails links to these assets on the current host in the public - # folder, but you can direct Rails to link to assets from a dedicated assets server by - # setting ActionController::Base.asset_host in your <tt>config/environment.rb</tt>. For example, - # let's say your asset host is <tt>assets.example.com</tt>. + # folder, but you can direct Rails to link to assets from a dedicated asset + # server by setting ActionController::Base.asset_host in the application + # configuration, typically in <tt>config/environments/production.rb</tt>. + # For example, you'd define <tt>assets.example.com</tt> to be your asset + # host this way: # # ActionController::Base.asset_host = "assets.example.com" + # + # Helpers take that into account: + # # image_tag("rails.png") - # => <img src="http://assets.example.com/images/rails.png" alt="Rails" /> + # # => <img alt="Rails" src="http://assets.example.com/images/rails.png?1230601161" /> # stylesheet_link_tag("application") - # => <link href="http://assets.example.com/stylesheets/application.css" media="screen" rel="stylesheet" type="text/css" /> + # # => <link href="http://assets.example.com/stylesheets/application.css?1232285206" media="screen" rel="stylesheet" type="text/css" /> # - # This is useful since browsers typically open at most two connections to a single host, - # which means your assets often wait in single file for their turn to load. You can - # alleviate this by using a <tt>%d</tt> wildcard in <tt>asset_host</tt> (for example, "assets%d.example.com") - # to automatically distribute asset requests among four hosts (e.g., "assets0.example.com" through "assets3.example.com") - # so browsers will open eight connections rather than two. + # Browsers typically open at most two simultaneous connections to a single + # host, which means your assets often have to wait for other assets to finish + # downloading. You can alleviate this by using a <tt>%d</tt> wildcard in the + # +asset_host+. For example, "assets%d.example.com". If that wildcard is + # present Rails distributes asset requests among the corresponding four hosts + # "assets0.example.com", ..., "assets3.example.com". With this trick browsers + # will open eight simultaneous connections rather than two. # # image_tag("rails.png") - # => <img src="http://assets0.example.com/images/rails.png" alt="Rails" /> + # # => <img alt="Rails" src="http://assets0.example.com/images/rails.png?1230601161" /> # stylesheet_link_tag("application") - # => <link href="http://assets3.example.com/stylesheets/application.css" media="screen" rel="stylesheet" type="text/css" /> + # # => <link href="http://assets2.example.com/stylesheets/application.css?1232285206" media="screen" rel="stylesheet" type="text/css" /> # - # To do this, you can either setup 4 actual hosts, or you can use wildcard DNS to CNAME - # the wildcard to a single asset host. You can read more about setting up your DNS CNAME records from - # your ISP. + # To do this, you can either setup four actual hosts, or you can use wildcard + # DNS to CNAME the wildcard to a single asset host. You can read more about + # setting up your DNS CNAME records from your ISP. # # Note: This is purely a browser performance optimization and is not meant # for server load balancing. See http://www.die.net/musings/page_load_time/ # for background. # - # Alternatively, you can exert more control over the asset host by setting <tt>asset_host</tt> to a proc - # that takes a single source argument. This is useful if you are unable to setup 4 actual hosts or have - # fewer/more than 4 hosts. The example proc below generates http://assets1.example.com and - # http://assets2.example.com randomly. + # Alternatively, you can exert more control over the asset host by setting + # +asset_host+ to a proc like this: # - # ActionController::Base.asset_host = Proc.new { |source| "http://assets#{rand(2) + 1}.example.com" } + # ActionController::Base.asset_host = Proc.new { |source| + # "http://assets#{rand(2) + 1}.example.com" + # } # image_tag("rails.png") - # => <img src="http://assets2.example.com/images/rails.png" alt="Rails" /> + # # => <img alt="Rails" src="http://assets0.example.com/images/rails.png?1230601161" /> # stylesheet_link_tag("application") - # => <link href="http://assets1.example.com/stylesheets/application.css" media="screen" rel="stylesheet" type="text/css" /> + # # => <link href="http://assets1.example.com/stylesheets/application.css?1232285206" media="screen" rel="stylesheet" type="text/css" /> # - # The proc takes a <tt>source</tt> parameter (which is the path of the source asset) and an optional - # <tt>request</tt> parameter (which is an entire instance of an <tt>ActionController::AbstractRequest</tt> - # subclass). This can be used to generate a particular asset host depending on the asset path and the particular - # request. + # The example above generates "http://assets1.example.com" and + # "http://assets2.example.com" randomly. This option is useful for example if + # you need fewer/more than four hosts, custom host names, etc. + # + # As you see the proc takes a +source+ parameter. That's a string with the + # absolute path of the asset with any extensions and timestamps in place, + # for example "/images/rails.png?1230601161". # # ActionController::Base.asset_host = Proc.new { |source| # if source.starts_with?('/images') @@ -63,14 +79,16 @@ module ActionView # end # } # image_tag("rails.png") - # => <img src="http://images.example.com/images/rails.png" alt="Rails" /> + # # => <img alt="Rails" src="http://images.example.com/images/rails.png?1230601161" /> # stylesheet_link_tag("application") - # => <link href="http://assets.example.com/stylesheets/application.css" media="screen" rel="stylesheet" type="text/css" /> + # # => <link href="http://assets.example.com/stylesheets/application.css?1232285206" media="screen" rel="stylesheet" type="text/css" /> # - # The optional <tt>request</tt> parameter to the proc is useful in particular for serving assets from an - # SSL-protected page. The example proc below disables asset hosting for HTTPS connections, while still sending - # assets for plain HTTP requests from asset hosts. This is useful for avoiding mixed media warnings when serving - # non-HTTP assets from HTTPS web pages when you don't have an SSL certificate for each of the asset hosts. + # Alternatively you may ask for a second parameter +request+. That one is + # particularly useful for serving assets from an SSL-protected page. The + # example proc below disables asset hosting for HTTPS connections, while + # still sending assets for plain HTTP requests from asset hosts. If you don't + # have SSL certificates for each of the asset hosts this technique allows you + # to avoid warnings in the client about mixed media. # # ActionController::Base.asset_host = Proc.new { |source, request| # if request.ssl? @@ -80,7 +98,8 @@ module ActionView # end # } # - # You can also implement a custom asset host object that responds to the call method and tasks one or two parameters just like the proc. + # You can also implement a custom asset host object that responds to +call+ + # and takes either one or two parameters just like the proc. # # config.action_controller.asset_host = AssetHostingWithMinimumSsl.new( # "http://asset%d.example.com", "https://asset1.example.com" @@ -88,24 +107,29 @@ module ActionView # # === Using asset timestamps # - # By default, Rails will append all asset paths with that asset's timestamp. This allows you to set a cache-expiration date for the - # asset far into the future, but still be able to instantly invalidate it by simply updating the file (and hence updating the timestamp, - # which then updates the URL as the timestamp is part of that, which in turn busts the cache). + # By default, Rails appends asset's timestamps to all asset paths. This allows + # you to set a cache-expiration date for the asset far into the future, but + # still be able to instantly invalidate it by simply updating the file (and + # hence updating the timestamp, which then updates the URL as the timestamp + # is part of that, which in turn busts the cache). # - # It's the responsibility of the web server you use to set the far-future expiration date on cache assets that you need to take - # advantage of this feature. Here's an example for Apache: + # It's the responsibility of the web server you use to set the far-future + # expiration date on cache assets that you need to take advantage of this + # feature. Here's an example for Apache: # - # # Asset Expiration - # ExpiresActive On - # <FilesMatch "\.(ico|gif|jpe?g|png|js|css)$"> - # ExpiresDefault "access plus 1 year" - # </FilesMatch> + # # Asset Expiration + # ExpiresActive On + # <FilesMatch "\.(ico|gif|jpe?g|png|js|css)$"> + # ExpiresDefault "access plus 1 year" + # </FilesMatch> # - # Also note that in order for this to work, all your application servers must return the same timestamps. This means that they must - # have their clocks synchronized. If one of them drift out of sync, you'll see different timestamps at random and the cache won't - # work. Which means that the browser will request the same assets over and over again even thought they didn't change. You can use - # something like Live HTTP Headers for Firefox to verify that the cache is indeed working (and that the assets are not being - # requested over and over). + # Also note that in order for this to work, all your application servers must + # return the same timestamps. This means that they must have their clocks + # synchronized. If one of them drifts out of sync, you'll see different + # timestamps at random and the cache won't work. In that case the browser + # will request the same assets over and over again even thought they didn't + # change. You can use something like Live HTTP Headers for Firefox to verify + # that the cache is indeed working. module AssetTagHelper ASSETS_DIR = defined?(Rails.public_path) ? Rails.public_path : "public" JAVASCRIPTS_DIR = "#{ASSETS_DIR}/javascripts" @@ -117,7 +141,7 @@ module ActionView # <tt>:atom</tt>. Control the link options in url_for format using the # +url_options+. You can modify the LINK tag itself in +tag_options+. # - # ==== Options: + # ==== Options # * <tt>:rel</tt> - Specify the relation of this link, defaults to "alternate" # * <tt>:type</tt> - Override the auto-generated mime type # * <tt>:title</tt> - Specify the title of the link, defaults to the +type+ diff --git a/actionpack/lib/action_view/helpers/date_helper.rb b/actionpack/lib/action_view/helpers/date_helper.rb index 4305617ac8..b4c1adbe76 100644 --- a/actionpack/lib/action_view/helpers/date_helper.rb +++ b/actionpack/lib/action_view/helpers/date_helper.rb @@ -860,7 +860,7 @@ module ActionView # => post[written_on(1i)] def input_name_from_type(type) prefix = @options[:prefix] || ActionView::Helpers::DateTimeSelector::DEFAULT_PREFIX - prefix += "[#{@options[:index]}]" if @options[:index] + prefix += "[#{@options[:index]}]" if @options.has_key?(:index) field_name = @options[:field_name] || type if @options[:include_position] @@ -923,7 +923,7 @@ module ActionView options[:field_name] = @method_name options[:include_position] = true options[:prefix] ||= @object_name - options[:index] ||= @auto_index + options[:index] = @auto_index if @auto_index && !options.has_key?(:index) options[:datetime_separator] ||= ' — ' options[:time_separator] ||= ' : ' @@ -961,15 +961,15 @@ module ActionView class FormBuilder def date_select(method, options = {}, html_options = {}) - @template.date_select(@object_name, method, options.merge(:object => @object), html_options) + @template.date_select(@object_name, method, objectify_options(options), html_options) end def time_select(method, options = {}, html_options = {}) - @template.time_select(@object_name, method, options.merge(:object => @object), html_options) + @template.time_select(@object_name, method, objectify_options(options), html_options) end def datetime_select(method, options = {}, html_options = {}) - @template.datetime_select(@object_name, method, options.merge(:object => @object), html_options) + @template.datetime_select(@object_name, method, objectify_options(options), html_options) end end end |