diff options
Diffstat (limited to 'actionpack/README')
| -rw-r--r-- | actionpack/README | 77 |
1 files changed, 34 insertions, 43 deletions
diff --git a/actionpack/README b/actionpack/README index e4ce4aa044..8bdcb9120a 100644 --- a/actionpack/README +++ b/actionpack/README @@ -37,15 +37,15 @@ A short rundown of the major features: def show @customer = find_customer end - + def update @customer = find_customer @customer.attributes = params[:customer] - @customer.save ? + @customer.save ? redirect_to(:action => "show") : render(:action => "edit") end - + private def find_customer() Customer.find(params[:id]) end end @@ -64,7 +64,7 @@ A short rundown of the major features: <% unless @person.is_client? %> Not for clients to see... <% end %> - + {Learn more}[link:classes/ActionView.html] @@ -99,24 +99,24 @@ A short rundown of the major features: before_filter :authenticate, :cache, :audit after_filter { |c| c.response.body = Gzip::compress(c.response.body) } after_filter LocalizeFilter - + def index # Before this action is run, the user will be authenticated, the cache # will be examined to see if a valid copy of the results already # exists, and the action will be logged for auditing. - - # After this action has run, the output will first be localized then + + # After this action has run, the output will first be localized then # compressed to minimize bandwidth usage end - + private def authenticate # Implement the filter with full access to both request and response end end - + {Learn more}[link:classes/ActionController/Filters/ClassMethods.html] - + * Helpers for forms, dates, action links, and text @@ -124,26 +124,26 @@ A short rundown of the major features: <%= html_date_select(Date.today) %> <%= link_to "New post", :controller => "post", :action => "new" %> <%= truncate(post.title, :length => 25) %> - + {Learn more}[link:classes/ActionView/Helpers.html] -* Layout sharing for template reuse (think simple version of Struts +* Layout sharing for template reuse (think simple version of Struts Tiles[http://jakarta.apache.org/struts/userGuide/dev_tiles.html]) class WeblogController < ActionController::Base layout "weblog_layout" - + def hello_world end end Layout file (called weblog_layout): <html><body><%= yield %></body></html> - + Template for hello_world action: <h1>Hello world</h1> - + Result of running hello_world action: <html><body><h1>Hello world</h1></body></html> @@ -156,9 +156,9 @@ A short rundown of the major features: Accessing /clients/37signals/basecamp/project/dash calls ProjectController#dash with { "client_name" => "37signals", "project_name" => "basecamp" } in params[:params] - + From that URL, you can rewrite the redirect in a number of ways: - + redirect_to(:action => "edit") => /clients/37signals/basecamp/project/dash @@ -168,15 +168,6 @@ A short rundown of the major features: {Learn more}[link:classes/ActionController/Base.html] -* Javascript and Ajax integration - - link_to_function "Greeting", "alert('Hello world!')" - link_to_remote "Delete this post", :update => "posts", - :url => { :action => "destroy", :id => post.id } - - {Learn more}[link:classes/ActionView/Helpers/JavaScriptHelper.html] - - * Easy testing of both controller and rendered template through ActionController::TestCase class LoginControllerTest < ActionController::TestCase @@ -218,18 +209,18 @@ A short rundown of the major features: class WeblogController < ActionController::Base caches_page :show caches_action :account - + def show - # the output of the method will be cached as + # the output of the method will be cached as # ActionController::Base.page_cache_directory + "/weblog/show/n.html" # and the web server will pick it up without even hitting Rails end - + def account # the output of the method will be cached in the fragment store # but Rails is hit to retrieve it, so filters are run end - + def update List.update(params[:list][:id], params[:list]) expire_page :action => "show", :id => params[:list][:id] @@ -256,26 +247,26 @@ A short rundown of the major features: class AccountController < ActionController::Base scaffold :account end - + The AccountController now has the full CRUD range of actions and default templates: list, show, destroy, new, create, edit, update - + {Learn more}[link:classes/ActionController/Scaffolding/ClassMethods.html] * Form building for Active Record model objects - The post object has a title (varchar), content (text), and + The post object has a title (varchar), content (text), and written_on (date) <%= form "post" %> - + ...will generate something like (the selects will have more options, of course): - + <form action="create" method="POST"> <p> - <b>Title:</b><br/> + <b>Title:</b><br/> <input type="text" name="post[title]" value="<%= @post.title %>" /> </p> <p> @@ -293,7 +284,7 @@ A short rundown of the major features: </form> This form generates a params[:post] array that can be used directly in a save action: - + class WeblogController < ActionController::Base def create post = Post.create(params[:post]) @@ -318,19 +309,19 @@ methods: class WeblogController < ActionController::Base layout "weblog/layout" - + def index @posts = Post.find(:all) end - + def show @post = Post.find(params[:id]) end - + def new @post = Post.new end - + def create @post = Post.create(params[:post]) redirect_to :action => "show", :id => @post.id @@ -364,7 +355,7 @@ And the templates look like this: weblog/new.html.erb: <%= form "post" %> - + This simple setup will list all the posts in the system on the index page, which is called by accessing /weblog/. It uses the form builder for the Active Record model to make the new screen, which in turn hands everything over to @@ -379,7 +370,7 @@ The latest version of Action Pack can be found at * http://rubyforge.org/project/showfiles.php?group_id=249 -Documentation can be found at +Documentation can be found at * http://api.rubyonrails.com |